Current Issue
Historical Article
(4)We aimed to introduce Ernst von Bergman, who contributed greatly to the establishment of modern neurosurgery and introduced antisepsis practices to routine use in surgery, and his important work, which is the first book on neurotrauma. The world's first book dedicated to neurotrauma, Lehre von Kopfv...
AIM: To highlight the contributions of four surgeons who practiced neurosurgery in the late nineteenth century by examining their works and assessing their impact on the field. MATERIAL and METHODS: The study focuses on the works of four pioneering neurosurgeons?Fedor Krause, Victor Horsley, Harv...
AIM: To present the sections allocated to hydrocephalus in the works of Ibn Hubal al-Baghd?d? and Ibn al-Quff, to include them and determine their position in the history of medicine by discussing relevant literature. MATERIAL and METHODS: A printed copy and a manuscript in İstanbul Süleymaniye Ma...
The aim of this article is to introduce the 19th century neurosurgery books to reveal their contributions to modern neurosurgery. Methods In this study, 29 books were accessed, and reviewed, and the resources from the late 18th century and early 20th century were included. However, neurology or ge...
Original Investigation
(2000)AIM: To evaluate the safety and efficacy of the hybrid operating room (HOR) approach in the management of severe traumatic brain injury (sTBI) using Xper-computed tomography (CT)-guided imaging and neurointerventional techniques. MATERIAL and METHODS: A retrospective analysis was conducted on 154 pa...
AIM: To provide insight into the molecular mechanism of contusional expansion (CE) by creating experimentally induced contusion cerebri (CC) in rats and investigating whether melatonin administration prevents CE or not. MATERIAL and METHODS: Rats were randomized into four groups: Group 1 (control, n...
AIM: To evaluate the role of recent endovascular techniques as less invasive alternatives in the management of multiple intracranial aneurysms, particularly in the context of heterogeneous aneurysm morphology and anatomical complexity. MATERIAL and METHODS: This retrospective analysis included 65 pa...
AIM: To evaluate the diagnostic and prognostic significance of miRNA signatures by identifying differences in miRNA expression between ruptured and unruptured intracranial aneurysm (IA) cases, as well as to pinpoint miRNAs that correlate with clinical severity in patients with aneurysmal subarachnoi...
AIM: To evaluate the potential genetic differences between systemic lupus erythematosus (SLE) and cerebrovascular disorders (CVDs) patients. MATERIAL and METHODS: This genetic association study conducted Mendelian randomization (MR) analyses on the derived exposures and outcomes from summary stat...
AIM: To evaluate the patients who underwent surgery with a diagnosis of Moyamoya disease (MMD), and to contribute to the literature from a single-center in Türkiye. MATERIAL and METHODS: Patients were evaluated retrospectively based on age, symptoms, history of cerebrovascular events (CVE), genet...
AIM: To compare the efficacy of intra-articular PRF (IA-PRF) and medial branch PRF (MB-PRF) in the treatment of facet joint-related low back pain. MATERIAL and METHODS: In this prospective observational study, 116 patients with ≥50% pain relief after diagnostic intraarticular anesthetic injection we...
AIM: To evaluate the incidence, risk factors, and spinopelvic alignment parameters associated with distal junctional failure (DJF) following posterior thoracolumbar stabilization surgery. MATERIAL and METHODS: This retrospective cohort study included 40 patients who underwent thoracolumbar stabiliza...
AIM: To evaluate the efficacy of diffusion tensor imaging (DTI) and diffusion tensor tractography (DTT) in establishing the relationship between cervical extramedullary tumors and the spinal cord with reference to, especially treatment planning, clinical outcome prediction and diagnostic accuracy. M...
AIM: To evaluate the surgical outcomes, extent of resection, and postoperative clinical improvement in 22 patients with brainstem tumors. MATERIAL and METHODS: We performed surgery on 22 patients with brainstem tumors using various approaches to access the pathology. Our goal was to achieve gross...
AIM: To evaluate the incidence and identify the risk factors of stereotactic radiosurgery (SRS)-induced peritumoral edema (PTE) in the asymptomatic convexity, parasagittal, and parafalcine meningiomas without pre-existing PTE. MATERIAL and METHODS: We retrospectively analyzed 52 patients with asympt...
AIM: To investigate the anatomical characteristics, procedural constraints, and technical details of anterior endoscopic transcervical approach (AETCA) through cadaveric dissection. MATERIAL and METHODS: Nine human cadaver heads, transected at the C6-C7 level and preserved in 10% formalin for no les...
AIM: To evaluate Deepseek-R1, Gemini-2.0 Pro, ChatGPT-o3-mini-high, and GPT-4.5 on a mock neurosurgery board exam to assess their accuracy and educational value. MATERIAL and METHODS: We created a 50-question mock neurosurgery board examination and administered it to three major large language mo...
AIM: To evaluate the impact of generative artificial intelligence and large language models (LLMs) on medical training and neurosurgical education, specifically focusing on their emerging capabilities in image interpretation. MATERIAL and METHODS: This study evaluated the performance of three majo...
AIM: To assess the overall trends in scientific dissemination at neurosurgery meetings organized by the Turkish Neurosurgical Society (TNS) and the Society of Surgery of the Nervous System (SSNS), two major neurosurgical societies in Turkey. MATERIAL and METHODS: We reviewed 2,696 abstracts presen...
AIM: To evaluate the efficacy and safety of topical tranexamic acid (tTXA) in thoracolumbar fusion surgery. MATERIAL and METHODS: A systematic review was conducted per PRISMA guidelines. Studies from January 1970 to August 2024 were retrieved from PubMed, Cochrane, EMBASE, Medline, and Google Scho...
AIM: To compare haemostasis induced with tranexamic acid (TXA) and immunosuppression induced with infliximab (INF) as strategies to reduce epidural fibrosis (EF) in rat laminectomy model. MATERIAL and METHODS: Twenty-one male Sprague?Dawley rats were randomly assigned into control group (no treatm...
AIM: To evaluate the complications associated with Unilateral Biportal Endoscopy (UBE) in spinal surgery, highlighting the risks and outcomes of this minimally invasive approach. MATERIAL and METHODS: A retrospective analysis was conducted on 374 patients who underwent UBE at three centers from 2...
AIM: To compare the biomechanical behavior of titanium and polyetheretherketone (PEEK) rods using finite element analysis (FEA) in a Grade I L5-S1 isthmic spondylolisthesis model. MATERIAL and METHODS: An anatomically accurate 3D finite element model of the L3?S1 spine was created from CT data of ...
AIM: To evaluate the effects of administering pethidine (also known as meperidine), a long-acting narcotic analgesic, via the caudal epidural route at the conclusion of posterior lumbar instrumentation (PLI) surgery on postoperative pain control, and early mobilization of patients. MATERIAL and M...
AIM: To assess the therapeutic effects of methylprednisolone, nimodipine, and amantadine on peripheral nerve injury using a rat sciatic nerve compression model, simulating potential treatments for humans. MATERIAL and METHODS: A total of 36 adult male Wistar albino rats were divided into five groups...
AIM: To conduct a morphometrical analysis of the atlas to facilitate the development of atlas-related treatment methods and demonstrate the variations in atlas anatomy to aid surgical approaches and reduce complications. MATERIAL and METHODS: The present study was conducted on 58 dry human atlas v...
AIM: To present a single-center experience, and to highlight the urgent need for multi-institutional collaboration in Türkiye and surrounding regions lacking access to methylation platforms, with the aim of enhancing diagnostic precision and neuropathological practice. MATERIAL and METHODS: All p...
AIM: To examine the parameters influencing prognosis, and the effectiveness of surgical techniques in patients aged over 65 years with acute subdural hematoma (ASH). MATERIAL and METHODS: From 2017 to 2023, a retrospective evaluation was conducted on 62 individuals admitted to the emergency depar...
AIM: To investigate corpus callosum shape differences in pediatric hydrocephalus patients with and without shunt revisions. MATERIAL and METHODS: Midsagittal magnetic resonance imaging studies from 45 cases (25 with and 20 without shunt revision surgeries) that underwent ventriculoperitoneal shunt...
AIM: To present a national database analysis comparing transnasal transsphenoidal (TNTS) and transcranial (TC) approaches in sellar lesion management. MATERIAL and METHODS: We analyzed the National Surgical Quality Improvement Program (NSQIP) database by TNTS and TC CPT codes from 2014-2018. Outc...
AIM: To investigate the risk factors and optimize the management of entrapped temporal horn (ETH) following lateral ventricular tumor surgery. MATERIAL and METHODS: We reviewed 41 cases of lateral ventricular tumors treated at the department of neurosurgery of our institution between January 2012...
AIM: To evaluate the effects of methylprednisolone and vitamin B12 injection on the regeneration of the nerves after a mental nerve crush injury. MATERIAL and METHODS: A total of 40 albino Wistar rats have been randomly divided into four groups: group 1 (n=10): crushlike nerve damage was created ...
AIM: To evaluate the effects of surgical timing on the prognosis in far lateral disk herniations. MATERIAL and METHODS: We retrospectively evaluated 171 patients diagnosed with far lateral disk herniation who underwent surgery between 2015 and 2021. Patients were divided into three groups: Those o...
AIM: To evaluate the effects of granulocyte colony stimulating factor (G-CSF) on spinal fusion through manual palpation, radiological examinations, and histopathological analyses in a rat model. MATERIAL and METHODS: A total of 21 rats were evaluated in this study. The rats were divided into the f...
AIM: To mathematically present the results of endoscopic assisted surgery in the treatment of metopic synostosis. MATERIAL and METHODS: We present a follow-up of the stages of treatment of 43 patients with metopic synostosis who underwent surgery in a multicenter retrospective study between 2018 a...
AIM: To examine the effects of different retractor techniques for anterior cervical discectomy on cerebral oxygen saturation. MATERIAL and METHODS: In this study, a prospective comparative design was employed to examine the effects of different retractor techniques on a cohort of 48 adult patients...
AIM: To evaluate bilateral double rod contructs in thoracolumbar fractures in a Finite Element model MATERIAL and METHODS: A computed tomography of a 35-year old male have been chosen to create a vertebra model and 1/3 of the T12 was removed to create the burst fracture model. In model A, transped...
AIM: To evaluate survival and prognostic factors associated with survival among patients who underwent reirradiation for recurrent/ progressive primary brain tumors. MATERIAL and METHODS: A multicenter, retrospective study (7 centers, N=236) was conducted by the Neuro-oncology Group of the Turkis...
AIM: To review our experience with patients presenting with recurrent trigeminal neuralgia (TN) and who have undergone repeat microvascular decompression surgery (rMVD). MATERIAL and METHODS: This retrospective observational study was conducted at the Department of Neurosurgery at a university ho...
AIM: To evaluate tenoxicam?s effects on embryonic neural tube formation to identify potential teratogenicity and determine the underlying mechanisms leading to neural tube defects (NTDs). MATERIAL and METHODS: This study was conducted at our University?s Neuro-embryology Laboratory. A total of 100...
AIM: To observe changes in the serum levels of visinin-like protein-1 (VILIP-1), caveolin-1 (Cav-1) and neuron-specific enolase (NSE) after glioma resection. MATERIAL and METHODS: Consecutive 14 glioma patients with different histologic grade and 14 age and gender-matched healthy subjects were in...
AIM: To present symptoms and surgical results of patients operated on with the diagnosis of tethered cord syndrome (TCS) in adulthood. MATERIAL and METHODS: In this retrospective study, 20 patients older than 18 years were evaluated. There were 17 female and 3 male patients. Patient demographics,...
AIM: To compare the preoperative and postoperative increased signal intensity (ISI) outcomes of cervical spondylotic myelopathy (CSM) patients who underwent posterior decompression and fusion, and to assess the correlation between ISI changes and postsurgical clinical prognosis. MATERIAL and METH...
AIM: To evaluate the effects of tramadol on inflammation by measuring NLRP1 and IL-1 beta (IL-1β) levels in an experimental neuropathic pain model. MATERIAL and METHODS: Sprague-Dawley rats were divided into three groups: control, chronic constriction injury (CCI), and CCI + tramadol. Neurop...
AIM: To compare T1-weighted contrast-enhanced (T1+C) with fast imaging employing steady-state acquisition (FIESTA) magnetic resonance imaging (MRI) sequences to protect healthy brain tissue during meningioma treatment with Gamma-Knife radiosurgery (GKRS). MATERIAL and METHODS: After reviewing the...
AIM: To report our institutional experience of the one-stop treatment of Spetzler?Martin grade (SMG) III?V brain arteriovenous malformations (BAVMs) in a hybrid operating room. MATERIAL and METHODS: Clinical data obtained from all the patients with SMG III?V BAVMs who underwent one-stop treatment ...
AIM: To examine the clinical characteristics and early rehabilitation results and to investigate the relationship between rehabilitation initiation time and rehabilitation-related outcome measurements in traumatic brain injury (TBI) patients who have early rehabilitation. MATERIAL and METHODS: For...
AIM: To assess the effect of intravenously injected superparamagnetic iron oxide nanoparticle (SPION)-labeled adipose-derived stem cells (ADSCs) under an external magnetic field on the efficacy of ADSC transplantation in rats with spinal cord injury (SCI). MATERIAL and METHODS: ADSCs were isolated...
AIM: To establish the diagnosis of basilar invagination (BI) on the basis of specific bony landmarks Klaus? index (KI), perpendicular distance between the tip of the odontoid process and palato internal occipital protuberance (PI) line. MATERIAL and METHODS: Forty-nine patients were analysed, who ...
AIM: To evaluate the cytotoxic and proapoptotic effects of C6 ceramide on the C6 rat glioma cell line. MATERIAL and METHODS: The C6 rat glioma cell line was evaluated. Using a confocal microscope and the appropriate software, the cytotoxic effects of C6 ceramide were identified using 3-(4,5-dimeth...
AIM: To highlight the critical role of molecular profiling of choroid plexus epithelium tumors (CPTs) in guiding individualized treatment strategies. MATERIAL and METHODS: Histopathological diagnoses were obtained from surgically resected tumors at Centro Medico Nacional 20 de Noviembre, Mexico C...
AIM: To assess the effectiveness and safety of Virtual Reality (VR) simulations for education of posterior spinal instrumentation. MATERIAL and METHODS: Participants were instructed to apply Cervical-Thoracic-Lumbar and Sacral posterior instrumentation techniques using the VR. Each participant und...
AIM: To examine the fiber-based anatomy of the medial pontine area (MPA), one of the most commonly used brainstem (BS) safe entry zones in neurosurgery. MATERIAL and METHODS: According to the protocol of Klingler and Ludwig, six BSs were kept in 10% formalin solution for at least 2 months. After ...
AIM: To examine the anatomy of the petrosphenoidal ligament (PSL), and its relationship with the abducens nerve (AN) in newborn cadavers. MATERIAL and METHODS: Using 10 formalin-fixed newborn cadavers, 20 PSLs and ANs on both sides were examined. The structure of each PSL, its morphometric featur...
AIM: To investigate the morphometric and morphological development of the medial surface of the cerebrum in 40 fetal cadavers without external anomalies and pathologies between the gestational ages of 22 and 40 weeks. MATERIAL and METHODS: In this study, we measured the height and width of the cer...
AIM: To investigate the surgical outcomes in patients with nonfunctional pituitary adenomas (NFPAs) exhibiting visual field defects (VFDs) in order to ascertain the impact of the volume of adenoma excised during surgery on recurrence rates and improvements in VFDs. MATERIAL and METHODS: From a co...
AIM: To investigate the efficacy of immunohistochemical methods to determine molecular subgroups and prognostic predictions of medulloblastomas (MBs). MATERIAL and METHODS: ?-catenin, GAB1, YAP1, filamin A and p53 were immunohistochemically stained, and MYC and MYCN fluorescent in situ hybridizat...
AIM: To investigate the correlation between specific glioblastoma multiforme (GBM) molecular markers and their proximity to the subventricular zone (SVZ) to uncover potential prognostic indicators and therapeutic strategies. MATERIAL and METHODS: The study retrospectively analyzed 171 patients who...
AIM: To investigate the relationship between tumor volume and serum microsomal prostaglandin E2 (mPGE2) levels in patients with astrocytic tumors. MATERIAL and METHODS: The study included patients with astrocytic tumors who were treated at our clinic between August 2015 and December 2016. Preoper...
AIM: To compare the treatment outcomes of surgical and endovascular methods in patients with intracranial aneurysms. MATERIAL and METHODS: A total of 1183 patients [722 (61%)] female and 461 [(39%) male] with intracranial aneurysms, including 615 with subarachnoid hemorrhage (SAH) and 568 without ...
AIM: To explore the pathophysiological mechanism of subarachnoid haemorrhage (SAH) using cellular oxidative stress mechanisms and inflammation. MATERIAL and METHODS: A total of 20 Wistar Albino rats were divided into two groups, namely sham and SAH. On day 0, 0.3 mL of saline in the sham group an...
AIM: To investigate changes in nitric oxide (NO) levels, oxidative stress, and dynamic thiol/disulphide homeostasis in the serum and cerebrospinal fluid (CSF) of patients with aneurysmal subarachnoid hemorrhages (aSAH). MATERIAL and METHODS: This prospective study included a total of 40 consecutiv...
AIM: To compare lumbar X-ray and magnetic resonance imaging (MRI) findings, and to identify the factors associated with joint instability in cases with lumbar spondylolisthesis. MATERIAL and METHODS: We performed a retrospective and observational study of patients with a confirmed diagnosis of lu...
AIM: To assess the performance metrics of perfusion and permeability magnetic resonance imaging (MRI) parameters with optimal cut-offs in differentiating isocitrate dehydrogenase (IDH) genotype and tumor grade in patients with grade 2-4 gliomas. MATERIAL and METHODS: This retrospective study inclu...
AIM: To investigate cervical spinal tractography (CST) and diffusion tensor imaging findings in patients with intramedullary cervical spinal cord (CSC) tumors and to evaluate the association between qualitative diffusion tensor tractography (DTT) findings and neurological examination findings (NEF...
AIM: To retrospectively evaluate the cranial magnetic resonance imaging (MRI) features and determine the incidence of intracranial arachnoid cysts (ACs) based on sex, age, location, size, affected side, Galassi type, and their association with hydrocephalus, mega cisterna magna (MCM), bone erosion...
AIM: To examine the morphological properties of the cranial aperture of the optic canal (CAOC) in patients with a Chiari type-I malformation (CIM). MATERIAL and METHODS: Radiological images of 40 patients with CIM (24 females/16 males, mean age: 20.75 ± 14.98 years) and 40 normal individuals (24 ...
AIM: To investigate the treatment approaches and follow-up data of patients with pineal region tumours at our institution. MATERIAL and METHODS: A retrospective study was planned to evaluate patients who diagnosed with a pineal mass between 2019 and 2022 whether incidentally or symptomatically. Al...
AIM: To determine the clinical relevance of a rigid endoscopy surgical method for subdural hematomas, as previously described in a cadaver study. MATERIAL and METHODS: Between May 2021 and September 2023, 21 patients underwent subdural hematoma drainage using a 0-degree rigid endoscope. Traumatic...
AIM: To investigate the feasibility of transfecting the TNF-related apoptosis-inducing ligand (TRAIL) gene into neural stem cells (NSCs) in vitro, and explore whether NSCs retain their proliferative and differentiated activities after transfection. MATERIAL and METHODS: NSCs were obtained from fet...
AIM: To determine the effects of different concentrations of Trolox on the cytotoxic, oxidant, antioxidant, and cytokine levels in the SH-SY5Y cell line. MATERIAL and METHODS: SH-SY5Y cells were grown in an appropriate medium and under appropriate conditions. Trolox was added to the cell line at ...
AIM: To investigate the possible mediation of epigenetic mechanisms underlying the regenerative effect of uridine in a sciatic nerve transection rat model. MATERIAL and METHODS: Fifty adult male rats were randomized to sham, control, and uridine groups. After unilateral transection and primary an...
AIM: To examine the effects of amantadine, a drug with neuroprotective and anti-inflammatory activities on oxidative stress, tissue necrosis, apoptosis, and neurological recovery in an experimental rabbit spinal cord ischemia-reperfusion injury (SCIRI) model. MATERIAL and METHODS: A total of 32 ra...
AIM: To investigate the effects of vitamin D and memantine on the healing process in juvenile rats with repetitive brain injury (rTBI) and to elucidate the mechanisms underlying these potential therapeutic effects. MATERIAL and METHODS: Juvenile rats were randomly allocated into seven groups, with...
AIM: To determine if low-cost magnification devices (USB computer microscope, smartphone) enable the acquisition and maintenance of basic microsurgical skills by comparing skills learned using these devices against those learned using a surgical microscope. Determining whether skills acquired usin...
AIM: To assess the clinicopathological and prognostic significance of Tim-3, an immune checkpoint molecule, and Rel-B, an NF-?B subunit, in grade 4 diffuse glioma samples and their relationship with each other. MATERIAL and METHODS: The demographic, radiologic, treatment, and prognostic data of pa...
AIM: To assess the prognostic utility of the albumin-to-gamma-glutamyltransferase ratio (AGR) in patients with high-grade glioma [World Health Organization (WHO) grade III and IV] and to develop a predictive nomogram. MATERIAL and METHODS: Data from 185 patients diagnosed with high-grade gliomas, ...
AIM: To identify the autophagy mechanism T98 glioma cells. MATERIAL and METHODS: Three groups were created with T98 human glioblastoma cells; Group 1: T98 glioma cells without treatment (Control group). Group 2: T98 glioma cells treated with 3 µl/ml JWO. Group 3: T98 glioma cells treated with 6 µl...
AIM: To evaluate the radiological characteristics, clinical features,and surgical outcomes of bicoronal incision and bifrontal craniotomy for olfactory groove meningiomas (OGMs). MATERIAL and METHODS: This was a retrospective review of 16 patients (nine male and seven female) with large and giant ...
AIM: To determine the prognostic value of routine hematological indices in patients undergoing carotid endarterectomy (CEA). MATERIAL and METHODS: As a retrospective single center study, we measured the systemic immune inflammation index (SII) and other systemic inflammatory parameters to estimate...
AIM: To investigate the effect of obesity on the severity of cerebral vasospasm after subarachnoid hemorrhage. MATERIAL and METHODS: In this study, six experimental groups, each consisting of 10 rats, were defined (60 rats in total). Groups 1 and 2 comprised rats with normal body weight, Groups 3 ...
AIM: To investigate latissimus dorsi morphometry, innervation, vascularization, and variational situations in fetuses. MATERIAL and METHODS: Forty-nine fetuses, aged between 15 and 40 weeks of gestation, were examined for the morphological development of the latissimus dorsi. The horizontal length...
AIM: To determine sac volume based on radiological examinations in patients undergoing surgery for myelomeningocele (MMC) and to investigate the relationship of sac volume with hydrocephalus and Chiari malformation type 2 (CM) with a view to determining the optimum length of follow-up and recommen...
AIM: To assess associated cerebral supratentorial anomalies in patients who underwent myelomeningocele repair in hopes of developing a better morphological apprehension of the forebrain?s anomalies in this category of patients. MATERIAL and METHODS: This retrospective observational study assessed ...
AIM: To evaluate the postoperative magnetic resonance imaging (MRI) findings and clinical outcomes of patients who underwent monoportal endoscopic lumbar discectomy. MATERIAL and METHODS: Preoperative and postoperative 3rd and 6th month MRI features, visual analog scale (VAS), and Oswestry Disabi...
AIM: To investigate the short- term results of dynamic/semi-rigid stabilization in patients with cervical spinal stenosis and compare them with patients for which decompression and pos-terior cervical fusion was performed. MATERIAL and METHODS: 28 patients were included in this study. Group 1 was ...
AIM: To investigate the effects of obesity on the treatment outcomes of lumbar transforaminal epidural steroid injections (TFESIs). MATERIAL and METHODS: This retrospective study included patients who underwent single-level TFESI in a pain management center between January 2021 and April 2023. Bod...
AIM: To evaluate the in vitro effects of hydroxychloroquine (HCQ) on histone deacetylase (HDAC) enzyme activity and interleukin (IL)-6, IL-10, and tumor necrosis factor-alpha (TNF-α) expressions. MATERIAL and METHODS: Primary cell cultures were prepared. Samples that did not receive any medic...
AIM: To evaluate the supraorbital and transorbital approaches as alternative entry sites and trajectories targeting the nucleus accumbens (NAc), subcallosal cingulate gyrus (SCG), and lateral hypothalamic area (LHA), in cadavers and surgical planning station. MATERIAL and METHODS: The three-dimens...
AIM: To assess the changes of intracranial pressure waveforms (ICPW) acquired noninvasively in a set of acute hydrocephalus patients prior to and posterior to interventions. MATERIAL and METHODS: Patients with clinical and radiological diagnosis of hydrocephalus were evaluated for alterations in ...
AIM: To evaluate the efficacy and safety of the guideless catheter placement technique in revision surgeries for external ventricular drainage (EVD) and ventricular shunt systems to improve treatment outcomes for hydrocephalus. MATERIAL and METHODS: We retrospectively analyzed 111 patients who und...
AIM: To investigate the morphology of sella turcica (ST) in Chiari malformation type I (CM-I) using computed tomography. MATERIAL and METHODS: The size and shape of ST were examined using the radiological images of 32 CM-I patients (21 female/11 male, mean age: 26.09 ± 15.39 years), and 32 normal ...
AIM: To present information regarding macrocephaly and microcephaly provided in D?w?d al-An??k??s Arabic book, al-Nuzhat al- Mubhija, which was translated into English and discussed in the context of the period?s literature. MATERIAL and METHODS: The copy of al-Nuzhat al-Mubhija, which was publish...
AIM: To examine the risk factors for postoperative C5 palsy, particularly an association between the laminectomy width and C5 palsy after open-door cervical laminoplasty (CLP). MATERIAL and METHODS: This single-center study analyzed data from 132 adult patients who underwent open-door CLP for deg...
AIM: To evaluate the impact of the volume of cement injected during unilateral percutaneous vertebroplasty (PVP) on the occurrence of new fractures, as well as its effect on coronal balance and pain management in patients with osteoporotic vertebral compression fractures (OVCFs). MATERIAL and MET...
AIM: To investigate the incidence of distal junctional failure (DJF) in patients undergoing posterior lumbar fusion with either semirigid polyether ether ketone (PEEK) or rigid titanium alloy rods, focusing on the impact of preoperative and postoperative spinopelvic parameters on DJF development. ...
AIM: To investigate the incidence of transverse carpal muscle (TCM) occurrence around carpal tunnel which may lead to carpal tunnel syndrome (CTS), and cause disorientation of surgeons during the surgery. MATERIAL and METHODS: We reviewed patients in our department between January 2007 and March 2...
AIM: To evaluate the adherence to and awareness of current concussion/mild traumatic brain injury (mTBI) guidelines among Turkish neurosurgeons. MATERIAL and METHODS: A cross-sectional electronic survey was administered to all members of the Turkish Neurosurgical Society (n=1875 neurosurgeons) be...
AIM: To develop a nomogram model that provides a clinical prediction method for preventing septated chronic subdural hematoma (sCSDH) recurrence after surgery and serves as a reference for selecting surgical approaches. MATERIAL and METHODS: This study involved 237 patients diagnosed with sCSDH. B...
AIM: To examine the effects of phenolic compound-rich ginger extract on motor and cognitive functions as well as cytokine levels in the mild traumatic brain injury (mTBI) model. MATERIAL and METHODS: The mTBI model was modeled employing the Marmarou method. The Ginger group rats were i.p. adminis...
AIM: To evaluate clinical and radiological outcome in surgically treated Koos 4 vestibular schwannomas. MATERIAL and METHODS: Volumetric analysis of the tumour volumes before surgery, after surgery (before radiation), and at follow-up time-points after radiation was performed. Clinical data on fac...
AIM: To present a series of four cases of solitary fibrous tumor/hemangiopericytoma (SFT/HPC) of the brain, which mimicked other central nervous system (CNS) tumors both clinically and radiologically. MATERIAL and METHODS: This is a retrospective study over a period of two and a half years. Out of...
AIM: To evaluate the oncological outcomes and the prognostic factors for children with ependymoma who receive radiotherapy (RT) ± chemotherapy after surgery. MATERIAL and METHODS: The medical records of 71 children with ependymoma who received RT between 2001 and 2022 were retrospectively evaluat...
AIM: To investigate the effect of 48-hour (h) administration of Tarantula Logoplex® (TL), a homeopathic medical product containing Tarantula cubensis venom, alone and in combination with temozolomide (TMZ) on T98G glioblastoma cell line with regard to cytotoxicity, cell migration, nitric oxide syn...
AIM: To examine the genetic results of patients diagnosed with pituitary neuroendocrine tumors (PitNETs) with respect to clinical, radiological, and pathological findings. MATERIAL and METHODS: A total of 53 patients (30 men and 23 women) diagnosed with PitNETs were included in the study. The cli...
AIM: To analyze the epidemiologic, clinical, neuroradiological, and histopathological data of patients who have undergone anterior temporal lobectomy (ATL) for drug-resistant mesial temporal lobe epilepsy (MTLE). MATERIAL and METHODS: The study included patients who were diagnosed with MTLE refrac...
AIM: To examine intraoperative cone-beam computed tomography (iCBCT) accuracy, and the need for postoperative imaging to confirm electrode position, and to assess the complications of deep brain stimulation (DBS) surgery. MATERIAL and METHODS: Thirty-two movement disorder patients and 69 targets w...
AIM: To compare the outcomes and complications of stent-assisted coil (SAC) embolization for the treatment of cerebral aneurysms according to stent type. MATERIAL and METHODS: Since January 2006, a total of 1293 patients have been added to our institutional aneurysm database. We excluded cases wi...
AIM: To assess the number of independent surgical procedures performed, working hours, and satisfaction with training among residents in Turkey. MATERIAL and METHODS: An electronic survey was sent to all neurosurgery residency in Turkey through e-mail and social media group. The survey, which inc...
AIM: To illustrate the middle cranial fossa (MCF) approach to the pterygopalatine fossa (PPF), infratemporal fossa (ITF), and parapharyngeal space (PPS) with temporomandibular joint (TMJ) preservation through step-by-step cadaver dissection and discuss certain critical considerations that are inad...
AIM: To investigate whether atlantoaxial intra-articular fusion (AIF) can maintain sagittal balance stability in the cervical spine during follow-up. MATERIAL and METHODS: The data of 39 patients with anterior atlantoaxial dislocation who underwent AIF and 21 patients who underwent structural bon...
AIM: To evaluate the effect of single and double anterior odontoid screw fixation on the ROM of the craniocervical area and the stress distribution on the implants in a Finite Element Analysis which may give us ideas about the possible results for IF and malunion. MATERIAL and METHODS: A FE model ...
AIM: To describe a series of 31 surgically managed cases in a single center. MATERIAL and METHODS: We retrospectively collected data from 31 surgically managed cases that occurred between October 2014 and July 2019. We used the PubMed database to conduct a systematic literature search. RESULTS: O...
AIM: To streamline the transforaminal endoscopic lumbar discectomy (TELD) technique to facilitate a shorter learning curve for novice surgeons by providing a comprehensive guide featuring ten crucial landmarks. MATERIAL and METHODS: In this retrospective study, we reviewed patients diagnosed with ...
AIM: To establish the presence and amount of fluid accumulation in UBE procedure, and the relationship of fluid management with other variables. MATERIAL and METHODS: All patients underwent UBE spinal surgery with one level between September 2019 and February 2022. The exclusion criteria were det...
AIM: To report a series of pediatric intracranial meningiomas operated in a single institution, and to compare their features with the literature. MATERIAL and METHODS: Using our hospital?s automation system, patients under the age of 18 who had been operated in the last 11 years were identified....
AIM: To identify novel therapeutic strategies to improve the outcomes of neonatal hydrocephalus. MATERIAL and METHODS: The treatment strategies for cases of neonatal hydrocephalus in our hospital between February 1, 2015, and February 1, 2024 reviewed and analyzed, with the aim of identifying valu...
AIM: To evaluate the cosmetic and visual aspects of trigonocephaly patients who have not received surgical intervention throughout a long-term follow up. MATERIAL and METHODS: Patients with trigonocephaly who did not undergo surgery were evaluated. Using 3D computed tomography images, the frontal...
AIM: To investigate the effects of dexpanthenol (Dex) on subarachnoid haemorrhage (SAH) induced brain injury via sirtuin 1 (SIRT1) signaling in a rat experimental model. MATERIAL and METHODS: A total of 46 Wistar Albino rats were divided into 5 groups as control, sham, SAH, SAH+Dex, and Dex. Firs...
AIM: To compare central nervous system (CNS) tumors, such as paraganglioma, low-grade glioma (LGG), and glioblastoma (GBM), in terms of driver genes and gene expression, and to investigate the roles of common driver genes and genes with altered expression in cellular proliferation mechanisms and t...
AIM: To report a single center experience in preoperative stereotactic radiosurgery (SRS) in patients with metastatic brain tumors. MATERIAL and METHODS: We identified 18 patients who underwent preoperative stereotactic radiosurgery (SRS) in our clinic between 2015 and 2021. Two patients were lost...
AIM: To assess the safety and efficacy of using Two isocenter targets in Gamma Knife Radiosurgery (GKRS) for treating trigeminal neuralgia (TN) versus a single isocenter target solely at the root entry zone (REZ). MATERIAL and METHODS: A retrospective study was conducted.The study involved 171 pat...
AIM: To explore interrelationships between serum lactate (Lac) levels and other hemodynamic parameters, including diastolic blood pressure (DBP) and mean arterial pressure (MAP) and acute-phase mortality in severe traumatic brain injury (sTBI). MATERIAL and METHODS: Clinical data for sTBI patients...
AIM: To validate the Chicago Chiari Outcome Scale (CCOS) as a patient-reported outcome measures (PROMs) tool and identify the cutoffs of CCOS-PROM and EuroQoL-5D-3L score index (EQ-SI) against Gestalt in adults who underwent chiari malformation type 1 (CM1) treatment. MATERIAL and METHODS: This c...
AIM: To evaluate the clinical and radiological outcomes of newly established Turkish neurosurgical stroke centers , and to assess their competency in managing acute ischemic stroke from June 2023 to June 2024. MATERIAL and METHODS: We retrospectively analyzed data from 69 patients (mean age = 69.0...
AIM: To perform comparison of preoperative and postoperative mean transit time (MTT) delay in ipsilateral, and contralateral hemispheres in Moyamoya disease using dynamic susceptibility contrast (DSC) perfusion. MATERIAL and METHODS: Preoperative images were obtained within 1 week before surgery a...
AIM: To investigate the clinical effect of neuroendoscopic surgery on 15 patients with hypertensive brainstem hemorrhage (HBSH). MATERIAL and METHODS: A retrospective analysis was conducted on the clinical data collected from 15 patients with HBSH and treated with neuroendoscopy between January 20...
AIM: To evaluate pial arteriovenous fistulas (AVFs), focusing on the radio-anatomic architecture and contemporary endovascular devices and techniques. MATERIAL and METHODS: Sixteen patients with congenital pial AVFs who underwent endovascular treatment between 2002 and 2023 at a single institutio...
AIM: To investigate the neuroprotective effects of various amounts of syringic acid (SA) on cerebral damage resulting from experimentally induced subarachnoid hemorrhage (SAH) in rats, utilizing both histological and biochemical analyses. MATERIAL and METHODS: In total, 40 male Wistar albino rats ...
AIM: To measure the deviation rate of a custom 3D-printed Deep Brain Stimulation (DBS) lead holder assisted electrode placements from their intended targets, providing a benchmark for the system?s accuracy and paving the way for its use in standard DBS workflows. MATERIAL and METHODS: The study w...
AIM: To summarise atypical cases of hemifacial spasm (HFS) found during microvascular decompression (MVD), and to investigate its pathogenesis and range of exploration. MATERIAL and METHODS: We retrospectively analysed cases of HFS performed in our department in recent years and summarised the in...
AIM: To evaluate the causes and risk factors of seizure recurrence, as well as the outcomes of reoperation in patients who did not achieve sufficient seizure control following surgery for mesial temporal lobe epilepsy (MTLE). MATERIAL and METHODS: We retrospectively reviewed the hospital charts of...
AIM: To examine the prevalence of epilepsy and other associated cortical abnormalities in patients with Myelomeningocele (MMC), and to present our findings along with a review of the literature. MATERIAL and METHODS: A retrospective chart review was conducted with MMC patients followed in our pedi...
AIM: To evaluate the efficacy of surgical interventions for pediatric lumbosacral lipomas (LSL) by focusing on preoperative symptoms, postoperative outcomes, and long-term prognosis. MATERIAL and METHODS: The medical records and magnetic resonance images (MRI) of 28 pediatric patients (15 boys and...
AIM: To determine if the concurrent use of external lumbar drainage (ELD) and oral medication will hasten the decrease in intracranial pressure (ICP) and resolution of papilledema in pediatric idiopathic intracranial hypertension (IIH). MATERIAL and METHODS: In this retrospective study, we evaluat...
AIM: To propose a weighted vote-based ensemble classification method to classify paraganglioma/pheochromocytoma, low-grade glioma, and glioblastoma tumors-conditions that present with similar symptoms-against other central nervous system tumors using clinical and molecular data. MATERIAL and METH...
AIM: To explore the risk factors associated with the occurrence of lower extremity deep vein thrombosis (DVT) after craniotomy in patients with primary brain tumors, and to develop a predictive model using machine learning. MATERIAL and METHODS: A prospective cohort study was conducted on 140 pati...
AIM: To evaluate association between chronic subdural hematoma (CSDH) and thromboelastography (TEG). MATERIAL and METHODS: A prospective pilot study was conducted on 52 patients with CSDH. The primary outcomes were CSDH severity, recurrence rate, and outcome. The secondary outcome was the associat...
AIM: To provide a detailed anatomical segmentation of the uncinate fasciculus (UF) and to identify its cortical and subcortical connections using complementary white matter dissection and diffusion-weighted imaging tractography techniques. MATERIAL and METHODS: Human cadaveric cerebral hemsipheres...
AIM: To compare the sphenoid ridge (SR) morphology in patients with Chiari type I malformation (CIM) with healthy subjects. MATERIAL and METHODS: Three dimensional (3D) computed tomography scans of 49 (25 men / 24 women) CIM patients aged 45.84±18.04 years, and 52 (26 men / 26 women) healthy subje...
AIM: To assess the contributions of Turkish female authors to the field of neurosurgery through ?Turkish Neurosurgery?, the only neurosurgery journal in Türkiye indexed by The Science Citation Index Expanded (SCIE). MATERIAL and METHODS: A bibliometric analysis was conducted on articles published ...
AIM: To identify the factors that could prevent the formation of spina bifida, and to determine the causes of hydrocephalus. MATERIAL and METHODS: We retrospectively evaluated the data of 51 patients with neural tube defects (NTDs) who were surgically treated at Sanliurfa Training and Research Hos...
AIM: To evaluate whether transfontanel ultrasonography could serve as a practical and less complex alternative to brain magnetic resonance imaging in infants with hydrocephalus. MATERIAL and METHODS: In this prospective study, 54 infants diagnosed with hydrocephalus underwent both transfontanel u...
AIM: To investigate the embryotoxic effects of Sunset Yellow (SY) exposure on neural tube development in an experimental model of chicken embryos. MATERIAL and METHODS: Sixty fertilized special pathogen-free (SPF) Leghorn genus chick embryos were used. Three experimental groups were determined, c...
AIM: To assess the incidence of retethering in patients who underwent surgery for tethered cord in our clinic. MATERIAL and METHODS: We included patients who underwent surgical intervention for tethered cord in our clinic between 2010 and 2020, and were subsequently diagnosed with retethering duri...
AIM: To determine the frequency of spondylolysis (SLi) in children examined due to trauma, which has not been reported before in Turkey, and to discuss the demographic features of these cases together with accompanying secondary pathologies. MATERIAL and METHODS: Between January 2013 and June 2023...
AIM: To examine the factors influencing neurosurgeons? preferences between microscopic discectomy (MD) and endoscopic discectomy (ED) for the treatment of lumbar disc herniation (LDH) in Türkiye. MATERIAL and METHODS: A cross-sectional survey was administered to 229 active neurosurgeons in Türkiye...
AIM: To compare the effect of fusion with anterior plating and cage (PLATE) versus cage-only (CAGE-O) technique on postoperative cervical sagittal alignment parameters, clinical outcome, and complication profiles after two-level anterior cervical discectomy and fusion (ACDF). MATERIAL and METHODS...
AIM: To examine the correlation between clinical outcomes and electrophysiological findings following open carpal tunnel release (CTR) surgery in patients with a positive scratch collapse (SC) test, and to the postoperative course of the SC test. MATERIAL and METHODS: The study included 29 patient...
AIM: To evaluate the prognostic value of serum endothelin-1 (ET-1), monocyte chemotactic protein-1 (MCP-1), and lactic acid (LA) levels in patients with ruptured intracranial aneurysm (IA) after interventional embolization. MATERIAL and METHODS: Patients with ruptured IA were divided into mild, mo...
AIM: To investigate the therapeutic effects of transcranial direct current stimulation (tDCS) on calcium and glutamate excitotoxicity caused by ischemia?reperfusion (IR). MATERIAL and METHODS: The IR model was generated by transient middle cerebral artery occlusion. tDCS treatment was applied at ...
AIM: To investigate the protective and therapeutic effects of dexpanthenol in experimental global cerebral ischemia-reperfusion injury. MATERIAL and METHODS: Thirty-two female Wistar-Albino rats were used, and the rats were divided into four groups (sham, sschaemia reperfusion [IR], IR+dexpantol ...
AIM: To elucidate the effects of nasal and intraperitoneal dexmedetomidine (DexN and DexP, respectively) administration in an animal model, and to explore the underlying action mechanisms on the treatment of traumatic brain injury (TBI). MATERIAL and METHODS: A total of 31 Wistar albino rats serve...
AIM: To investigate the difference in the length of C1 laminectomy between the right and left sides and to determine the importance of considering the dominant vertebral artery in reducing complication risks. MATERIAL and METHODS: Five caucasian male cadavers were studied. The distance of the C1 p...
AIM: To evaluate the diagnostic potential of c-MYC, FABP7, GATA4, and MAOB in meningioma patients by analyzing their expression in serum samples. MATERIAL and METHODS: The study included 20 patients who underwent surgical resection for intracranial meningiomas. Tumor and serum samples were collec...
AIM: To provide an in-depth anatomical description of the bed nucleus of the stria terminalis (BST) and its structural affiliations, with an emphasis on its surgical and neuromodulatory relevance. MATERIAL and METHODS: We conducted stepwise fiber dissections on 14 formalin-fixed human brains prepa...
AIM: To evaluate the outcomes in low-pressure hydrocephalus (LPH) following an endoscopic third ventriculostomy, and placement of a valveless ventriculoperitoneal or ventriculoatrial shunt catheter. MATERIAL and METHODS: This novel surgical technique was assessed in a prospective case series at a ...
AIM: To investigate the effects of 25% dextrose in a rat model of cerebrospinal fluid leakage. MATERIAL and METHODS: Forty Wistar rats were included in the study. The dura mater of the rats was opened, and 25% dextrose was applied topically at a dose of 0.1 ml. Rats were sacrificed at the end of t...
AIM: To discuss the diagnostic tests and management options of retroclival Ecchordosis physaliphora (EP). MATERIAL and METHODS: Four patients with a retroclival EP were assessed. Computerized tomography (CT) and magnetic resonance imaging (MRI) findings were examined thoroughly. Diffusion MRI char...
AIM: To evaluate the five-year outcomes of zero-profile spacers and plate-cage constructs in cervical spinal cord injury without fracture or dislocation (CSCIWFD). MATERIAL and METHODS: A retrospective review was conducted on patients undergoing anterior cervical discectomy and fusion (ACDF) for ...
AIM: To compare the clinical outcomes of microsurgery and biportal endoscopic spinal surgery (BESS) in lateral recess stenosis. MATERIAL and METHODS: This study evaluated the outcomes of patients with lumbar lateral recess stenosis who underwent microsurgery or BESS between March 2021 and October ...
AIM: To observe the impact of the bilateral decompression with a unilateral approach technique, which is an effective and safe method in the surgical treatment of lumbar spinal stenosis (LSS) on the biomechanics of the spine in the early postoperative period and observe changes in sagittal balance...
AIM: To compare the effects of pregabalin and gabapentin on the regeneration of rat nerves exposed to experimental axonotmesis by means of histomorphological, immunohistochemical, biochemical, electrophysiological, and clinical evaluations. MATERIAL and METHODS: Thirty-two female Sprague-Dawley ra...
AIM: To investigate the therapeutic efficacy of quercetin in early brain injury (EBI) and vasospasm resulting from experimental subarachnoid hemorrhage (SAH). MATERIAL and METHODS: The rats were assigned into five groups, as follows; Group A: rats did not undergo SAH induction, Group B: rats unde...
AIM: To explore the interplay between different geometric features of various types of aneurysms related to aneurysm rupture angiographically. MATERIAL and METHODS: Three dimensional (3D) digital subtraction angiography (DSA) studies from 180 patients with ruptured sidewall (SW) and sidewall with...
AIM: To evaluate the outcomes of decompression surgery in patients who developed malignant cerebral infarction after pharmacologic and endovascular thromboembolectomy treatment. MATERIAL and METHODS: The study included 57 patients who underwent decompressive surgery for acute ischemic stroke betw...
AIM: To investigate the patients diagnosed with calcified cephalic hematoma who underwent surgery at our clinic, and to review the critical aspects of surgical management. MATERIAL and METHODS: This study retrospectively reviewed calcified cephalic hematoma patients who underwent surgery between ...
AIM: To evaluate the long-term outcomes of nine patients who underwent myelomeningocele repair via fetoscopic surgery, open fetal surgery, and postnatal surgery. MATERIAL and METHODS: The presence of inclusion cysts and the thickness of granulation tissues at the surgical site were analyzed using...
AIM: To identify morphological differences in the cranial aperture (CA) of the optic canal (OC) in patients with Chiari malformation type 2 (CMT2) by comparing them with healthy individuals. MATERIAL and METHODS: Computed tomography images were analyzed for 40 patients with CMT2 (16 females, 24 ma...
AIM: To evaluate the relationship between the most commonly used scoring systems, some disease parameters and prognosis in a patient group diagnosed with primary Central Nervous System Lymphoma (PCNSL). MATERIAL and METHODS: Clinical information was collected from patients diagnosed with PCNSL bet...
AIM: To present a systematic review and to report a case of xanthomatous meningioma, aiming to contribute valuable insights into this uncommon neoplasm. MATERIAL and METHODS: The guiding question focused on the epidemiological characteristics of xanthomatous meningiomas. Inclusion criteria encomp...
AIM: To evaluate the frequency and prognostic significance of microsatellite instability (MSI) in patients with glioblastoma (GBM), an immunohistochemical analysis of mismatch repair (MMR) proteins was performed. MATERIAL and METHODS: A total of 71 patients with GBM who underwent surgery between 2...
AIM: To analyze preoperative inflammatory markers including neutrophil, lymphocyte and platelet counts and neutrophil to lymphocyte (NLR) and platelet to lymphocyte (PLR) ratios in a group of patients with different brain pathologies and healthy controls. MATERIAL and METHODS: Above mentioned preo...
AIM: To analyse postoperative meningitis (POM) after craniotomy, and to compare the clinical characteristics, treatment outcomes and mortality rates of POM that were caused by Acinetobacter spp. or other possible causes. MATERIAL and METHODS: In this study, POM cases in our hospital between 2008 a...
AIM: To investigate the effect of ultrasound-guided methylene blue (MB) thoracic paravertebral nerve block (TPVB) on the treatment of postherpetic neuralgia (PHN). MATERIAL and METHODS: A total of 27 patients with PHN were treated with ultrasound-guided TPVB. The blocking drug used was an MB comp...
AIM: To investigate the efficacy of empirical antibiotic treatment in culture-negative pyogenic vertebral osteomyelitis (PVO) cases. MATERIAL and METHODS: The records of patients with culture-negative PVO who were treated at infectious diseases and neurosurgery outpatient clinics in the past four ...
AIM: To evaluate the effectiveness of Gamma Knife radiosurgery (GKRS) as the primary and only therapy for the treatment of cavernous sinus hemangiomas (CSH) and to report the tumor volume dynamics, course of symptoms, and complications after stereotactic radiosurgery. MATERIAL and METHODS: A tota...
AIM: To assess posterior fossa brain arteriovenous malformation (PFbAVM) patients who received initial endovascular intervention to reduce the lesion size, as well as embolization for the obliteration of the lesions. MATERIAL and METHODS: This retrospective analysis included 16 patients (7 males a...
AIM: To investigate the added value of dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) sequences in predicting somatostatin analog (SSA) responses in patients with acromegaly. MATERIAL and METHODS:This study included 55 active acromegaly patients with macroadenoma. Mean and maximum ...
AIM: To compare the effects of spinal anesthesia (SA) and general anesthesia (GA) in lumbar microdiscectomy in terms of their costeffectiveness, and perioperative outcomes. MATERIAL and METHODS: We randomly allocated 100 consecutive patients who were scheduled to undergo elective lumbar microdisc...
AIM: To investigate the effects of Phenyramidol (Phe) on neural development in an early chicken embryo model. MATERIAL and METHODS: Sixty fertile non-pathogenic Super Nick eggs were incubated for 24 hours (h) and divided into four groups of 15 eggs each. Phe was administrated through the sub-blast...
AIM: To characterize the sociodemographic, clinical and radiological findings of patients with depressed skull fractures overlying cranial dural sinuses that we have faced in our institute. In addition, to explore the indications and choices for the surgical and nonsurgical management of such case...
AIM: To describe the location of each white matter pathways around the temporoâparietoâoccipital junction (TPOJ) and the dissections performed using focal fiber dissection and fiber separation techniques (FST). These areas play an important role in human language processing and high-level brai...
AIM: To identify the range of dimensional morphometric variability correlated to the basilar and condylar part of the occipital bone, which may affect the choice of approach to ventral intradural foramen magnum (FM) lesions. MATERIAL and METHODS: In total, 25 dry skulls and 50 head computed tomogr...
AIM: To investigate the potential protective effects of melatonin on the chronic radiation emitted by third generation mobile phones on the brain. MATERIAL and METHODS: A total of 24 male Wistar albino rats were divided into four equal groups. Throughout a 90-day experiment, no application was pe...
AIM: To evaluate the effects of agomelatine on the biochemical and pathological features of cisplatin-induced peripheral neuropathy. MATERIAL and METHODS: This study included a total of 30 male Wistar albino rats that weighed 285â300 grams and were divided into three groups: healthy controls (HC...
AIM: To demonstrate the value of special intraoperative neuromonitoring techniques for cauda equina and conus medullaris tumors (CECMT) by describing standard methods used at our center. MATERIAL and METHODS: Neurophysiological records were retrospectively reviewed for 16 patients (eight females a...
AIM: To investigate the incidence of neuropathic pain (NP) in patients with foraminal/extraforaminal lumbar disc herniation (FEFLDH), the prognosis of NP and the effect of microsurgery on patients treatment. MATERIAL and METHODS: Two patient groups with FEFLDH were investigated: the surgery group ...
AIM: To evaluate the feasibility of the mini-open incision method in patients who underwent median nerve decompression in the carpal tunnel with a mini incision made proximal to the distal wrist crease. MATERIAL and METHODS: A total of 80 patients (84 hands) operated by a single surgeon with a min...
AIM: To evaluate the effect of different remote ischemic preconditioning (RIPC) methods in spinal cord ischemia-reperfusion (IR) injury. MATERIAL and METHODS: A total of 36 rats were distributed to the 6 groups: sham surgery, control (only spinal cord IR), unilateral (hind limb RIPC before spinal...
AIM: To evaluate the over expression of Glucose-regulated protein 78 kda (GRP78) in recurrent glioblastoma multiforme (GBM) and explore its chemoresatance. MATERIAL and METHODS: Western blot analysis and real-time PCR were done to detect the expression of GRP78 in GBM tissues. RESULTS: It was det...
AIM: To learn how rat primary somatosensory cortex (pSSC) responses to the loss of inputs from hind-paw, using fMRI of an inferior magnetic power (1.5 Tesla) with special designed high-powered rat coil. MATERIAL and METHODS: Ten adult male Sprague-Dawley rats were enrolled in this study. The rats ...
AIM: To evaluate the efficacy of using a neuronavigation system for demonstrating the relationship between the basilar artery (BA) and ventricular floor during endoscopic third ventriculostomy (ETV). MATERIAL and METHODS: Records of 28 patients (16 females and 12 males) diagnosed with obstructive ...
AIM: To investigate the safety and efficacy of Derivo® embolisation device (DED), a new-generation flow diverter designed to treat cerebrovascular aneurysms, and its long-term clinical outcomes. MATERIAL and METHODS: In total, 146 patients with 182 aneurysms were treated with DED. The mean age of...
AIM: To evaluate whether there is any difference in voice quality between patients who were operated via microscopic and endoscopic approaches for pituitary adenomas. MATERIAL and METHODS: The study group consisted of 59 patients and 30 healthy volunteers. They were all males and divided into thr...
AIM: To investigate predictive factors for a favorable outcome from subthalamic nucleus-deep brain stimulation (STN-DBS) in Parkinsonâs disease (PD) and whether low serum vitamin B12 (vB12) levels can predict an unfavorable outcome. MATERIAL and METHODS: Thirty-nine patients with PD who underwen...
AIM: To predict the overall survival (OS) and the cancer-specific survival (CSS) of patients with high-grade glioma (HGG) using nomograms and the surveillance, epidemiology, and end results (SEER) database (2000-2013). MATERIAL and METHODS: A total of 3706 patients with high-grade glioma were iden...
AIM: To investigate the neuroprotective effect of a N-methyl-D-aspartate (NMDA) receptor antagonist (amantadine) in an experimental spinal cord injury (SCI) model. MATERIAL and METHODS: Thirty male SpragueâDawley rats were divided into three groups: control (I), SCI (II), and SCI + amantadine (...
AIM: To identify the effects of computer assisted training schemes provided to patients who have undergone surgical intervention for lumbar disc herniation on their level of knowledge, level of anxiety, problems experienced after discharge, and level of functional incapacity. MATERIAL and METHODS...
AIM: To explore the anatomic features of the neural foramen in particularly at the T12-L1 level in order to assess reveal the safety and efficiency of the endoscopic transforaminal approach for paramedian and foraminal disc herniations at this level. MATERIAL and METHODS: The study included 15 fre...
AIM: To report the surgical outcomes in patients with trigeminal neuralgia (TN) who underwent microvascular decompression (MVD) with superior petrosal vein sacrification. MATERIAL and METHODS: Data from 63 patients, whose information was obtained from a group of 113 patients who underwent surgery...
AIM: To investigate the incidence, risk factors, and recovery of patients with meralgia paresthetica (MP) following posterior spine surgery. MATERIAL and METHODS: Patients who underwent posterior spine surgeries in prone position at the authorsâ clinics were included in this study. Patients wit...
AIM: To determine whether the timing of shunt placement affects shunt infection rate in hydrocephalus associated with myelomeningocele (MMC). MATERIAL and METHODS: The cases of 67 consecutive patients who underwent MMC repair and ventriculoperitoneal (VP) shunt placement between 2010 and 2017 wer...
AIM: To evaluate the changes in the pressure values of the ulnar nerve after in-situ decompression and anterior subcutaneous transposition of the ulnar nerve. MATERIAL and METHODS: The ulnar nerve was released in the postcondylar groove. An ultrathin (100 lm) force transducer was embedded between...
AIM: To determine the expression profile of miRNA-199a-5p in intervertebral disc degeneration (IDD) and its correlation to the grade of IDD. MATERIAL and METHODS: This case-controlled study was conducted during a 6-month period from 2017 to 2018 in two university hospitals in Shiraz, Iran. We inc...
AIM: To determine the feasibility and efficacy of full endoscopic interlaminar discectomy (FEID) for recurrent disc herniation. MATERIAL and METHODS: This retrospective single-center study included 60 patients. Among them, 36 who previously had microdiscectomy underwent revisional FEID (MD group),...
AIM: To investigate the utility of two different interpositional materials (muscle graft vs. fascia flap) for preventing the osseous reunion of skull bone defect including the coronal suture line in rats. MATERIAL and METHODS: A total of 32 male Sprague-Dawley rats were divided into 2 groups (n=16...
AIM:To evaluate the long-term outcomes and prognostic variables in a surgical cohort of pediatric meningiomas treated in a single institution. MATERIAL and METHODS: Medical records and follow-up notes of 23 pediatric patients aged 3) during the last follow-up assessment. Ten patients (43.5%) had ...
AIM: To investigate the effects of an anti-ischemic agent, mildronate, on subarachnoid hemorrhage-induced vasospasm. MATERIAL and METHODS: Rabbits were randomly divided into four groups: control, subarachnoid hemorrhage (SAH), vehicle, and mildronate (n=8 animals per group). In the treatment group...
AIM: To investigate the clinicopathological features and related factors affecting microsurgical resection of lesions in the cavernous sinus. MATERIAL and METHODS: Clinical data of 66 patients undergoing microsurgery for lesions located in the cavernous sinus from January 2011 to December 2017 we...
AIM: To investigate the magnetic resonance imaging (MRI) results of patients complaining from diplopia with ocular nerve palsy. MATERIAL and METHODS: A routine ophthalmic examination was performed, a neurological consultation was requested, and cranial MRI was performed for all patients. The image...
AIM: To determine the interaction between ruxolitinib, JAK/STAT signalling, and two angio-microRNAs (miRs) to expose potential target molecules in the inhibition of glioblastoma invasion. MATERIAL and METHODS: The invasion properties of glioblastoma were analyzed using a cancer cell spheroid invas...
AIM: To present the clinical results in patients with minor instability with âDynesys®â a soft spinal stabilization system. MATERIAL and METHODS: A total of 83 patients were operated upon and the Dynesys® system was applied. Indications for surgery included painful degenerative disc disease,...
AIM: To define the optimal time of shunt insertion in patients with neural tube defects and hydrocephalus. MATERIAL and METHODS: In total, 71 patients who underwent operation for neural tube defects and hydrocephalus were retrospectively evaluated between 2012 and 2018. The first group comprised 4...
AIM: To propose a convolutional neural network (CNN) for the automatic detection of high-grade gliomas (HGGs) on T2-weighted magnetic resonance imaging (MRI) scans. MATERIAL and METHODS: A total of 3580 images obtained from 179 individuals were used for training and validation. After random rotat...
AIM: To examine the morphological features of thoracic pedicles in a Turkish population. MATERIAL and METHODS: This retrospective study was performed with the patients who were underwent thoracic CT for any reason such as trauma or pulmonary disorder. Patientâs age, height, weight, and sex were ...
AIM: To investigate the role of bipolar electrocautery in the occurrence of epidural fibrosis following lumbar spine laminectomy in a rat model. MATERIAL and METHODS: Fourteen male SpragueâDawley rats (age: 4â6 months, weight: 250â300 g) were randomly divided into two groups, a bipolar grou...
AIM: To evaluate the clinical characteristics of children who recently underwent decompressive craniectomy (DC) due to elevated intracranial pressure (ICP) correlated to head trauma or other causes, such as ischemic insult. MATERIAL and METHODS: Twelve patients aged â¤17 years who underwent DC du...
AIM: To determine the efficacy and safety of microvascular decompression (MVD) for hemifacial spasm (HFS) by retrospectively reviewing our results. MATERIAL and METHODS: A total of 55 patients who underwent MVD in our clinic between 2003 and 2017 were retrospectively analyzed. Clinical outcome re...
AIM: To examine the effect of sevoflurane, a halogenated anesthetic used in clinical applications, on oxidative stress and inflammation after an acute traumatic brain injury (TBI) in rats. MATERIAL and METHODS: Thirty male SpragueâDawley rats were divided into three groups: control (Group 1), tr...
AIM: To evaluate the effect of FSLLRY-NH2, a protease-activated receptor 2 (PAR2) inhibitor, on neurocognitive impairment and hippocampal neuronal degeneration in the setting of asphyxial cardiac arrest (ACA)-induced global cerebral ischemia (GCI) in rats. MATERIAL and METHODS: A total of 43 Sprag...
AIM: To analyze the impact of intraoperative neurophysiological monitoring (IONM) on the extent of removal and long-term neurological outcomes in a series of grade II ependymomas. MATERIAL and METHODS: We retrospectively reviewed 88 consecutive patients who underwent surgical resection of an intr...
AIM: To compare the efficacy of bone graft, hydroxyapatite coralline (Biocoral®), and porous polyethylene (Medpor®) implants for cranioplasty in a rat model of cranial bone defects. MATERIAL and METHODS: Two parietal bone defects were created in each of 16 male SpragueâDawley rats. One was rep...
AIM: To evaluate the relationship between trigeminal neuralgia (TN) and potential magnetic resonance imaging (MRI)-related measurements in patients with TN. MATERIAL and METHODS: Retrospective analysis of 104 patients with TN was performed. MRI studies of 98 healthy controls were included in the ...
AIM: To assess spatiotemporal gait parameters in patients with lumbar disc herniation (LDH) and chronic mechanical low back pain (CMLBP), and compare with healthy control group. MATERIAL and METHODS: A total of 70 patients was enrolled in this prospective, controlled cross-sectional study, of whic...
AIM: To summarize the clinical outcomes, follow-up results and to discuss the optimal therapeutic strategy for pericallosal artery aneurysms (PAAs). MATERIAL and METHODS: From January 2013 to May 2017, the charts of 49 patients with PAAs, representing 2.43% of 2,018 consecutive patients with intr...
AIM: To determine whether callosal angle (CA) measurement, a diagnostic and prognostic tool used for normal-pressure hydrocephalus in adults, is a reliable radiological parameter for evaluating endoscopic third ventriculostomy (ETV) outcomes in pediatric patients. MATERIAL and METHODS: Forty-seve...
AIM: To assess the clinical outcomes of treatment for radiation-induced meningiomas. MATERIAL and METHODS: Medical records were retrospectively reviewed for all cranial meningioma cases that were diagnosed and/or underwent surgery at our hospital from 2009 to 2016. All radiation-associated meningi...
AIM: To investigate the expression of the DR4, DR5, OPG, DcR1, and DcR2 in rat brain tissue. MATERIAL and METHODS: Thirty rats were used in this study. The rats were divided into three groups as the control group (n=10), tumor group (n=10), and zincoxide (ZnO) nanoparticles (NP) treatment group (n...
AIM: To examine whether post-treatment sevoflurane is protective against early brain injury (EBI) after subarachnoid hemorrhage (SAH) and how this neuroprotective effect occurs at different concentrations and durations of administration in mice. Furthermore, we tested whether the neuroprotective e...
AIM: To observe the effect of early hyperbaric oxygen (HBO) therapy on the improvement of consciousness and prognosis of patients with severe brain damages after craniocerebral craniotomy. MATERIAL and METHODS: Eighty-one patients who had cerebral hemorrhage and underwent clearance of hematoma and...
AIM: To discuss the optimal and recent treatment options based on clinical review of 16 chordoma patients. MATERIAL and METHODS: Data of the patients diagnosed and treated between 1999 and 2017 in Gazi University School of Medicine has been collected through patientsâ files and the electronic da...
AIM: To investigate the effects of different therapeutic radiation doses on the prevalence of neural tube defects (NTDs) in chick embryos and bone morphogenetic protein (BMP) 4 and BMP7 expression levels. MATERIAL and METHODS: The chick embryos (n=143) were derived from fertile, specific pathogen-...
AIM: To evaluate the feasibility of an experimentally designed model for training on endoscopic intranasal transsphenoidal hypophysis surgery. MATERIAL and METHODS: In this experimental study, a surgical training model for endoscopic transsphenoidal hypophysis surgery was designed to simulate rea...
AIM: To investigate the differences in the head shapes of scaphocephaly patients during the pre- and postoperative phases. MATERIAL and METHODS: Cranium shape data were collected from the two-dimensional digital images. The generalised Procrustes analysis was used to obtain mean shapes in the pre-...
AIM: To compare the efficacy of percutaneous transforaminal endoscopic discectomy with and without epidural steroid application in the treatment of lumbar disc herniation. MATERIAL and METHODS: A total of 101 patients who had indications for percutaneous transforaminal endoscopic discectomy were ...
AIM: To compare the effect of fluoroscopically guided transforaminal epidural steroid injections on radicular pain in foraminal and paramedian lumbar disc herniations. MATERIAL and METHODS: This study included patients who did not benefit from previous medical treatments or are not suitable for s...
AIM: To examine the spinal cord status by using diffusion tensor imagıng (DTI) and tractography preoperatively and postoperatively in patients with Chiari malformation type 1 (CM1) and compare the results with the data obtained from healthy people. MATERIAL and METHODS: Overall, 48 patients (33 p...
AIM: To analyze the impact of Tranexamic acid (TXA) on perioperative hemodynamics in craniosynostosis surgery. MATERIAL and METHODS: Data of thirty-six children (operated between 2014-2017) were categorized into two groups depending on TXA delivery. Patient demographics, preoperative, intraoperati...
AIM: To evaluate the factors affecting the clinical and radiological findings of juxtafacet cyst patients. MATERIAL and METHODS: Between January 2011 and December 2018, eight patients diagnosed with juxtafacet cyst were reviewed, retrospectively. Patient demographics; signs and symptoms; and neuro...
AIM: To investigate the immunogenetic properties of glial tumors according to the World Health Organization 2016 glial tumor classification and develop an accurate diagnosis and treatment strategy by comparing preoperative advanced magnetic resonance (aMRI) technique findings of these results. MA...
AIM: To identify the copy number variations that are specific to myxopapillary ependymomas (MPEs) of the cauda equina. MATERIAL and METHODS: The patient cohort included five patients who underwent resection of histologically confirmed MPEs. Tumor samples collected during surgery and stored in liqu...
AIM: To investigate the effects of metformin, a drug used widely for the treatment of type 2 diabetes mellitus, on human primary cell cultures prepared from uninjured segment of disc material intervertebral disk tissues. MATERIAL and METHODS: Primary cell cultures were prepared using the tissues o...
AIM: To determine whether platelet-associated inflammation parameters (PAIP) could be useful for evaluating inflammation in sagittal imbalance (SI) by investigating its relationship with pelvic tilt (PT), sacral slope (SS), pelvic incidence (PI), lumbar lordosis (LL) and thoracic kyphosis (TK). M...
AIM: To investigate the relationship between the distribution of ABO or Rhesus (Rh) blood group antigens and the incidence of myelomeningocele. MATERIAL and METHODS: A retrospective data was reviewed for all myelomeningocele patients operated at a tertiary academic hospital between years 2014 and...
AIM: To measure and to compare the volume of thalamus using magnetic resonance imaging (MRI) and the anatomical sections. MATERIAL and METHODS: In this study, 13 brain specimens were used. First, the images were taken in 3 mm sections on MRI, the thickness of the thalamus was measured. Subsequentl...
AIM: To investigate the acute effects of sildenafil citrate in an experimental model of severe head trauma, and to compare it with the efficacy of mannitol, which is an osmotically active agent frequently used in clinical treatment of traumatic brain injury (TBI). MATERIAL and METHODS: Twenty-eigh...
AIM: To study miR-24 effects on cerebral infarction in rats. MATERIAL and METHODS: A rat middle cerebral artery occlusion model (MCAO) was constructed. Intracerebroventricular stereotactic injection of miR-24 agomir/antagomir was performed in the rat MCAO model. According to different experiences,...
AIM: To evaluate the possible neuroprotective effects of systemic administration of cyclosporine (Cyclosporin A) after traumatic brain injury in rats. MATERIAL and METHODS: The modified Feeney method was used as the trauma model in male Sprague Dawley rats. After the trauma, 20 mg/kg of cyclospor...
AIM: To measure cytokine and lactate levels in the cerebrospinal fluid (CSF) of patients with suspected post-neurosurgical meningitis. MATERIAL and METHODS: Interleukin (IL)-8,-12, and -13, interferon (IFN) gamma, and lactate concentrations were determined in the CSF of patients diagnosed with men...
AIM: To find a more practical and effective formula than simple ABC/2 (sABC/2) to calculate the hematoma volume in patients with subdural and parenchymal haemorrhage. MATERIAL and METHODS: We reviewed the records of 157 patients who underwent brain computed tomography examinations for stroke from...
AIM: To share the inferences about trends on central nervous system (CNS) cancers in Turkey with the whole health community. MATERIAL and METHODS: Turkish National Cancer Statistics, statistics of Turkey in GLOBOCAN 2018 and worldwide statistics country-by-country in GLOBOCAN 2018 was compared to ...
AIM: To provide detailed information about anterior skull base anatomy. MATERIAL and METHODS: In terms of gender and laterality, the drainage pathways and anatomical variations of the frontal sinus, crista galli and nasal septum in 402 patients were evaluated via computed tomography scans. RESULT...
AIM: To evaluate computed tomography (CT) and magnetic resonance imaging (MRI) findings of cranial intraosseous meningiomas (IOMs). MATERIAL and METHODS: This study included ten patients (six females and four males) with IOMs who underwent cranial CT and/ or MRI examinations during May 2009?June ...
AIM: To determine the effect of using three concurrent measures (2% chlorhexidine gluconate +70% alcohol for skin cleaning, changing the dressing every 48 hours, and observing the operating room) for patients who had venriculoperitoneal shunt (VPS) implantations on the infection rate. MATERIAL an...
AIM: To evaluate the clinical efficacy and fusion characteristics of allografts in spinal tuberculosis (TB). MATERIAL and METHODS: The research reviewed 1196 patients with spinal tuberculosis who received treatment at six hospitals from January 2000 to January 2016. A total of 623 patients who had...
AIM: To compare neuroendoscopy versus minimal puncture drainage for surgical treatment of supratentorial hypertensive intracerebral hemorrhage. MATERIAL and METHODS: A total of 108 cases involving supratentorial intracerebral hemorrhage were retrospectively analyzed. In 30 cases, endoscopic surge...
AIM: To determine the clinical and radiographical aspects of six patients diagnosed with pericallosal lipomas (PCL). MATERIAL and METHODS: A retrospective analysis of patients who presented to the neurosurgery outpatient clinics of Selcuk Faculty of Medicine between 2009 and 2019, revealed that si...
AIM: To examine the morphological structure of anterior lumbar spinal region. MATERIAL and METHODS: Fifteen fresh human cadavers were studied in our forensic medicine institution. Within the first 24 hours after death, cadavers were subject to a routine autopsy, by which the intestines were remove...
AIM: To investigate the effects of tartrazine exposure on neural tube development, in early stage chicken embryos. MATERIAL and METHODS: A total of 120 fertilized specific pathogen-free chicken eggs were divided into 4 equal groups (groups 1?4). After 30 hours of incubation, the eggs, except for t...
AIM: To elucidate the characteristics of kyphoplasty in correlation with spinal metastasis. MATERIAL and METHODS: Data of patients treated by kyphoplasty between January 2017 and December 2019 were reviewed retrospectively. Preoperative prophylactic antibiotics and low-molecular-weight heparin inj...
AIM: To share our clinical experience with surgical and adjuvant treatment strategies followed during the treatment of midline gliomas. MATERIAL and METHODS: Pediatric patients with midline gliomas who underwent surgery in our clinic between March 2016 and November 2019 were included. Tissue samp...
AIM: To reveal difficulties in differential diagnosis of some cases of cerebrovascular events (CVEs) and malignant primary brain tumors (MBTs) even a multidiciplinary evaluation in grand rounds. MATERIAL and METHODS: This study retrospectively analyzed the patient archives from January 2017?Decemb...
AIM: To assess the safety and efficacy of distal thrombectomy (DT) using a Catch View mini (CVm) device via a microcatheter with a 0.013-inch inner diameter. MATERIAL and METHODS: Nine of 246 acute ischemic stroke patients who underwent mechanical thrombectomy developed distal emboli and were inc...
AIM: To investigate the patients who underwent decompressive craniectomy (DC) for trauma or cerebrovascular disease, and to determine the most suitable treatment protocol for those patients. MATERIAL and METHODS: Overall, 32 patients with trauma or cerebrovascular disease underwent DC. Clinical, r...
AIM: To evaluate the interobserver variability in determining the number of mitoses in 10 high-power field (HPF) and thus the tumor grade, and to investigate how to reduce grade discordance between the observers and the most useful method to identify the patients who would receive an additional tr...
AIM: To suggest a geometric classification of paraclinoid aneurysms for microcatheter superselection. MATERIAL and METHODS: Clinical data from 76 patients (80 paraclinoid aneurysms) who underwent endovascular treatments were retrospectively reviewed. Paraclinoid aneurysms were classified according...
AIM: To evaluate the prognostic value of preoperative neutrophil-to-lymphocyte ratio and platelet-lymphocyte ratio in glioblastoma multiforme patients. MATERIAL and METHODS: A total of 75 patients retrospectively analysed. The complete blood count of the patients was analysed before surgery. In o...
AIM: To investigate the effect of alpha lipoic acid on cerebrospinal fluid (CSF) osmolarity and brain tissue water ratio in a rabbit model of traumatic brain injury. MATERIAL and METHODS: Using a previously established model of traumatic brain injury using liquid nitrogen, 36 New Zealand rabbits ...
AIM: To analyze the resident?s contribution toward research productivity and the publication rates of theses conducted in neurosurgery departments across Turkey. MATERIAL and METHODS: A retrospective bibliometric analysis was conducted using databases of Council of Higher Education Thesis Center ...
AIM: To document the effectiveness of an alternative surgical technique with concurrent vertebroplasty and decompression without instrumentation for patients with vertebral hemangioma presenting with neural compression symptoms. MATERIAL and METHODS: This study is a technical note and a retrospect...
AIM: To determine whether melatonin (MLT) mitigates white matter (WM) injury by attenuating NOD-like receptor family pyrin domain-containing 3 (NLRP3)-associated oligodendrocyte apoptosis after subarachnoid hemorrhage (SAH). MATERIAL and METHODS: SAH model C57BL/6J mice were created using an endov...
AIM: To describe and demonstrate the close analogy between dual volume reconstruction images derived using three-dimensional digital subtraction angiography (3D-DSA) and surgical microscopic images. MATERIAL and METHODS: From 2013 to 2018, 12 patients with spinal vascular malformation (SVM) underw...
AIM: To present a case series describing an endoscopic technique with a small craniotomy for recurrent chronic subdural hematoma (rCSDH) treatment. MATERIAL and METHODS: A total of 17 patients with rCSDH underwent neuroendoscopic hematoma removal with a small craniotomy under local or general ane...
AIM: To evaluate the clinical and economic outcomes of the adoption of the enhanced recovery after spine surgery (ERSS) program in patients undergoing spine instrumentation. MATERIAL and METHODS: This study described the introduction of the ERSS program, and we compared 86 consecutive patients wh...
AIM: To evaluate the association between in-hospital outcomes of patients with spinal tuberculosis and different surgical approaches. MATERIAL and METHODS: This population-based, retrospective observational study analyzed data of hospitalized patients undergoing surgical treatment for spinal tuber...
AIM: To investigate the effects of different magnesium forms on tissue damage, cognitive and emotional behavioural impairment after mild traumatic brain injury (TBI). MATERIAL and METHODS: Rats were divided into 5 groups (control, trauma, magnesium sulphate, magnesium citrate, magnesium acetyl ta...
AIM: To evaluate the short-term outcomes of epidural steroid injections (ESIs) among elderly patients with lumbar spinal stenosis. MATERIAL and METHODS: This was a retrospective study. The sample consisted of 44 patients aged 65 or older who underwent epidural steroid injections secondary to lumba...
AIM: To evaluate the outcomes of percutaneous spinal cord stimulation (PSCS) in patients with failed back surgery syndrome (FBSS) in an academic tertiary care center. MATERIAL and METHODS: The hospital records of patients with FBSS who had undergone PSCS were retrospectively reviewed. A total of ...
AIM: To analyze the correlation of clinicopathologic prognostic parameters with atypical meningiomas (AMs) and recurrence development as well as progression-free survival (PFS). MATERIAL and METHODS: The neuropathology archive and hospital records of 75 patients with AM who underwent surgery in ou...
AIM: To evaluate the relationship between the time from cessation of anticoagulant/antiplatelet medication to surgery and risk of postoperative acute subdural hematoma (ASDH) after burr hole drainage of chronic subdural hematoma (CSDH). MATERIAL and METHODS: A retrospective study of patients who u...
AIM: To investigate the visual analogue scale (VAS) and Oswestry Disability Index (ODI) scores after the removal of the instrumentation system in patients who underwent lumbar instrumentation for lumbar degenerative disease (LDD). MATERIAL and METHODS: This study included 30 patients (19 female, 1...
AIM: To evaluate surgical treatment options, complications and neurological outcomes of patients with cavernous malformations (CMs) in the pons and medulla oblongata. MATERIAL and METHODS: We retrospectively evaluated 25 brain stem CMs that we operated between 2009 and 2019. We operated all cases...
AIM: To discuss the management of patients with the syndrome of inappropriate antidiuretic hormone secretion (SIADH) developing after subarachnoid hemorrhage, in a comparative manner in the light of the literature. MATERIAL and METHODS: Without country or language restrictions, articles with high ...
AIM: To investigate the effect of signal transducer and activator of transcription 3 (STAT3) signaling on neurogenesis following intracerebral hemorrhage (ICH). MATERIAL and METHODS: A rat model of ICH was induced via the stereotaxic injection of 100 ?L autologous blood into the right globus pall...
AIM: To present the radiological findings of fibrous dysplasia (FD) patients who had computed tomography (CT) and/or magnetic resonance imaging (MRI) scans. MATERIAL and METHODS: This study included a total of 25 patients (17 female and 8 male) who were found to have FD based on CT examinations b...
AIM: To report treatment experiences with titanium mesh cranioplasty infection at a single institution over the last 5 years. MATERIAL and METHODS: We retrospectively reviewed 11 consecutive patients who were diagnosed with infection under the skin flap after titanium mesh cranioplasty and receive...
AIM: To observe the effect of combining ellagic acid (EA), a natural phenol present in fruits and vegetables, and temozolomide (TMZ) on the proliferation and expression profile of C6 glioma cell line. MATERIAL and METHODS: Rat C6 glioma cells were treated with 100-?M EA combined with 100 ?M TMZ fo...
AIM: To retrospectively evaluate the overall survival (OS) of patients with brain metastases (BMs) who had been treated with whole brain radiotherapy (WBRT) and Gamma Knife (GK) according to prognostic factors and prognostic index scores. MATERIAL and METHODS: The study included 91 patients with B...
AIM: To compare the right and left sides and the endo?exocranial orifices of the jugular foramen (JF) considering the vascular compartment (VC) and the neural compartment (NC). MATERIAL and METHODS: A total of 20 human dry skulls belonging to the inventory of Medical Faculty, Department of Anatomy...
AIM: To assess the effectiveness and reliability of hemilaminectomy and bilateral decompression (HLBD) for the treatment of thoracic spinal stenosis (TSS) in selected patients. MATERIAL and METHODS: Clinical data of 21 consecutive adult patients who underwent HLBD were investigated. Patients diag...
AIM: To investigate the effect of distal fusion level on radiographic parameters and functional outcome in patients with degenerative spine disease who undergo long posterior fusion with instrumentation. MATERIAL and METHODS: This study included 78 adult patients aged>60 years who underwent long p...
AIM: To assess the classical and functional imaging features of patients with pathology located in the eloquent areas of the brain who were admitted to our centre between October 2012 and February 2018. We also studied intraoperative somatosensory evoked potential (SEP), motor evoked potentials (M...
AIM: To investigate the relationship between cancer stem cells (CD133 and CD44) and HIF1? expression in meningioma. MATERIAL and METHODS: In an immunohistochemistry experiment, three expert pathologists examined 100 meningioma slides stained for HIF1?, CD133, and CD44 antibodies. Statistical analy...
AIM: To evaluate the possible neuroprotective effects of ketamine and dantrolene on the hippocampal apoptosis and spatial learning in rats exposed to repeated electroconvulsive seizures (ECS) as a model of status epilepticus (SE). MATERIAL and METHODS: Twenty-four rats were assigned to 4 groups. 1...
AIM: To introduce a visual surgical concept using a retrospective comparison of the outcomes between visualized percutaneous endoscopic lumbar discectomy (V-PELD) and conventional PELD techniques. MATERIAL and METHODS: Data from 61 patients in the conventional PELD group and 55 in the V-PELD group...
AIM: To elucidate possible causal relationships on climate change and intracranial haematomas. MATERIAL and METHODS: In a retrospective study we examined all patients (N=1169) treated for subarachnoid haemorrhage (SAH; n=484), intracerebral haemorrhage (ICH; n=417) or chronic subdural haematoma (C...
AIM: To investigate the neuroprotective and therapeutic efficacy of hesperidin against secondary damage following traumatic spinal cord injury. MATERIAL and METHODS: A total of 32 male Wistar albino rats weighing 250?300 g were randomly divided into four groups (n=4): group I, control group; grou...
AIM: To report and to discuss our experience of awake craniotomy for the treatment of supratentorial lesions. MATERIAL and METHODS: We included patients who underwent awake craniotomy for supratentorial tumors between 2007 and 2018. A bipolar stimulation probe was used for patients with eloquent a...
AIM: To introduce a traumatic brain injury (TBI) patient who underwent stem cell transplantation (SCT) in order to minimize the remaining injury deficiencies. MATERIAL and METHODS: This study included a 29 years old male who had TBI resulting from a vehicle accident which took place one and a hal...
AIM: To evaluate the satisfactory clinical and radiological outcomes of posterior dynamic stabilization for the direct repair of bilateral L5 pars interarticularis defects and pars fusion. MATERIAL and METHODS: This is a retrospective evaluation of postoperative follow-up results of 13 patients wi...
AIM: To evaluate the patients with brain metastases from unknown primary (BMUP) cancers, and to analyze the prognostic factors and survival rates. MATERIAL and METHODS: We conducted a retrospective study with 110 patients (mean age: 62.8 years [range 23?90], n=85- 77.3% male and n=25-22.7% female...
AIM: To investigate the use of Augmented Reality (AR) technology as it contributes to spinal surgery education with the free-hand technique, and might reduce the error ratio. MATERIAL and METHODS: Ten candidates, with anatomy education but no surgical experience, applied 36 pedicle screws with C2...
AIM: To reveal the impacts of the novel coronavirus 2019 (COVID-19) pandemic on the functioning of neurosurgery clinics and to determine the anxiety levels and attitudes of Turkish neurosurgeons towards their profession during the pandemic. MATERIAL and METHODS: The Beck anxiety inventory and a cl...
AIM: To investigate whether Nimodipine (N) and Nigella sativa (NS) oil have protective, antioxidant effects in brain injury caused by experimental head trauma. MATERIAL and METHODS: Fifty albino Wistar rats were randomly divided into 5 groups that underwent experimental head trauma. Oxidative par...
AIM: To present the authors? experience in treatment of chronic subdural hematoma (CSDH) by a minimally surgical percutaneous approach. MATERIAL and METHODS: We relate our experience of mini-invasive evacuation of chronic subdural hematoma. Between May 2006 and December 2017, 1079 patients have b...
AIM: To identify the effects of different immunohistochemical features of glioblastomas with spinal metastases based on the metastatic spread and survival rate. MATERIAL and METHODS: A total of 214 patients who were diagnosed with and operated for brain tumor in our clinic between 2007 and 2018, ...
AIM: To evaluate the safety and efficacy of flow diverter (FD) stents in the treatment of intracranial aneurysms less than 5 mm. MATERIAL and METHODS: We treated 66 aneurysms in 43 patients with aneurysms less than 5 mm. Of the patients, 29 were females and 14 males (mean age: 50.2 years). Headach...
AIM: To analyze the spinal canal type and spinal structure of patients, to determine appropriate preoperative preparation and surgical procedures to prevent material malposition, which is the most common complication of thoracolumbar posterior transpedicular stabilization (TPTS) and is a determine...
AIM: To investigate the relationship between paracetamol and expression levels of cyclooxygenase-2, cyclin B, cell viability and apoptosis in glioblastoma cell line. MATERIAL and METHODS: The A172 glioblastoma cells were treated with different concentrations of paracetamol and phosphate buffer sa...
AIM: To compare preoperative and intraoperative electrophysiologic values in patients who underwent brain and spine surgeries. MATERIAL and METHODS: A retrospective medical record review was conducted on patients who underwent brain and spine surgery between January 2014 and July 2018. Patients un...
AIM: To investigate the efficacy and safety of the self-locking stand-alone cage used from opposite approach for the treatment of adjacent segment disease (ASD) after an anterior cervical corpectomy and fusion (ACCF). MATERIAL and METHODS: In this study, we retrospectively analyzed the clinical da...
AIM: To determine the effectiveness of diffusion tensor imaging (DTI) in diagnosing cervical spondylotic myelopathy (CSM) in patients with no findings detected in conventional magnetic resonance imaging (MRI). MATERIAL and METHODS: Fifty-four patients who presented for cervical MRI between January...
AIM: To demonstrate the various technical advantages of minimally invasive endoscopic untethering of tight filum terminale for the treatment of tethered cord syndrome (TCS). MATERIAL and METHODS: In five pediatric cases of TCS, we performed untethering by using the endoscopic technique. The age o...
AIM: To investigate the expression patterns of D-serine and N-methyl-D-aspartate (NMDA) receptor 1 in the temporal lobes of patients with intractable epilepsy. MATERIAL and METHODS: Cortical temporal lobe brain tissue samples were collected from 20 patients with intractable epilepsy and 6 patient...
AIM: To investigate the effect of age, diabetes mellitus, and body mass index (BMI) on the outcomes of carpal tunnel syndrome (CTS) surgery in patients with moderate CTS according to neurophysiological classification. MATERIAL and METHODS: Postsurgical outcomes were evaluated via a nerve conductio...
AIM: To investigate the effect of preoperative levodopa responsiveness to clinical outcomes in the first postoperative year, and to evaluate the changes in the postoperative levodopa responsiveness in patients undergoing subthalamic nucleus (STN) deep brain stimulation (DBS). MATERIAL and METHODS...
AIM: To examine the effect of propolis on the healing process in terms of both electrophysiological and ultrastructural parameters in a rat model of experimental spinal cord injury. MATERIAL and METHODS: Thirty rats were divided into control, spinal cord trauma, and treated trauma groups with 10 r...
AIM: To determine the mitochondrial microsatellite instability (mtMSI) status in a series of Malaysian patients with brain tumors. Furthermore, we analyzed whether the mtMSI status is associated with the clinicopathological features of the patients. MATERIAL and METHODS: Forty fresh frozen tumor t...
AIM: To study topography and variability in the origin of anterior interosseous nerve; to identify the branching pattern of the anterior interosseous nerve supplying the flexor digitorum profundus, flexor pollicis longus, and pronator quadratus muscles. MATERIAL and METHODS: The present study incl...
AIM: To explain how to resect hippocampal tissue in rats used as live mammalian subjects for the resection of fresh cerebral tissue in laboratories. MATERIAL and METHODS: Adult male Wistar-Albino rats (n=50) were used for this purpose. RESULTS: The average bodyweight of the rats was 316.4 ± 11.71...
AIM: To compare the efficacies of fluoroscopy- and ultrasound (US)-guided caudal epidural steroid injections (CESIs) in patients with chronic low back pain (LBP). MATERIAL and METHODS: This study included patients with chronic LBP who underwent US- (Group U; n = 90) or fluoroscopyguided (Group F;...
AIM: To carry out an in-depth bibliometric analysis of scoliosis literature. MATERIAL and METHODS: This study used the Web of Science database to identify relevant articles for analysis. The literature search used the keyword ?scolio*? and focused on the period between 1980-2019. Bibliometric netw...
AIM: To investigate the effects of quetiapine exposure on neural tube development in early stage chicken embryos. MATERIAL and METHODS: Eighty-four fertilised specific pathogen-free chicken eggs were divided into four equal groups (groups 1?4). Three experimental groups (groups 2, 3 and 4) and a s...
AIM: To analyze retrospectively our experience of unilateral hemilaminectomy in intradural extramedullary (IDEM) tumors. MATERIAL and METHODS: This study included 28 patients with IDEM tumors who underwent unilateral hemilaminectomies during the period 2011?2016. The preoperative clinicoradiologic...
AIM: To clarify the risk factors for adult moyamoya disease (MMD) in patients from South China. MATERIAL and METHODS: We prospectively studied adult patients who were diagnosed angiographically with MMD. The demographic profiles, medical history and clinical characteristics were compared between a...
AIM: To perform three-level decompression with a single-level corpectomy by modifying the fusion with anterior cervical corpectomy (ACC-F) method on a cadaver. MATERIAL and METHODS: The anterior cervical region of four whole-head cadavers was dissected. The corpectomy was performed under a surgic...
AIM: To demonstrate a custom spine disease analytical evaluation module that can instantly, accurately, and effectively analyze the widely accepted outcome measurements. MATERIAL and METHODS: The data input and analysis processes were evaluated on a timely basis to compare the traditional paper-b...
AIM: To examine the implantation of chitosan channels stuffed with mesenchyme-originated stem/progenitor cells (MSPCs) derived from adult rats in a spinal cord transection model. The level of axonal regeneration, the effect of chitosan channels on the survival of MSPCs, and the functional recovery...
AIM: To compare the clinical and radiological results of using synthetic bone graft versus autograft obtained from the spinous process in posterior lumbar interbody fusion. MATERIAL and METHODS: This retrospective study included 102 patients with degenerative lumbar spondylolisthesis who underwen...
AIM: To investigate the cytotoxic effects of boron application at different doses on U-87 MG glioblastoma cells. MATERIAL and METHODS: The T98G (ATCC® CRL-1690?) glioblastoma cell strain used in the study was acquired from the American Type Culture Collection (ATCC) (Manassas, USA). Boric acid sol...
AIM: To evaluate the protective effects of azathioprine, a macrophage-inhibiting agent, on secondary injury in spinal cord trauma. MATERIAL and METHODS: A total of 40 Wistar rats were randomly divided into 4 groups. All the animals had undergone T8-10 laminectomy. Except in group I (control), all ...
AIM: To demonstrate the microsurgical procedures, and to evaluate the feasibility of living models of experimental neurovascular training by developing new complex vascular exercises mimicking the most common intracranial aneurysms. MATERIAL and METHODS: The procedures were performed under a Zeiss...
AIM: To determine the effect of Intravenous Tranexamic Acid (TXA) on traumatic intracerebral hemorrhage. MATERIAL and METHODS: A total of 94 cases of TBI with intracerebral hemorrhage, admitted to the emergency department who did not need surgical intervention based on a primary brain spiral compu...
AIM: To measure the serum levels of strong angiostatic and synaptogenetic molecules thrombospondin-1 (TSP-1) and thrombospondin-2 (TSP-2) in patients with temporal lobe epilepsy (TLE) before and after surgery. MATERIAL and METHODS: In this prospective study, 20 patients operated for TLE and 20 hea...
AIM: To investigate the effects of metformin, dichloroacetate (DCA), and memantine on T98G and U87-MG human glioblastoma (GBM) cells to target tumor cell metabolism in a multi-directional manner. MATERIAL and METHODS: IC50 levels for metformin, DCA, metformin+DCA and memantine were determined by M...
AIM: To analyze the effectiveness of fat and fibrin glue to prevent postoperative cerebrospinal fluid (CSF) leak in pituitary surgery. MATERIAL and METHODS: Two hundred and eleven patients affected by pituitary adenoma entered this study. Patients that underwent a microscopic transsphenoidal appro...
AIM: To evaluate the functional and histopathological results of alpha-tocopherol (vitamin E) and vitamin B12 on an experimental rat model of peripheral nerve injury. MATERIAL and METHODS: This research included 32 Wistar Hannover rats. The sciatic nerves of the animals were crushed using an aneu...
AIM: To compare the histological and angiographic measurements of the basilar artery in an experimental rabbit subarachnoid hemorrhage model. MATERIAL and METHODS: The basilar artery was measured using both histological and angiographic methods in experimental subarachnoid hemorrhage (SAH) and va...
AIM: To estimate the rupture risk of anterior communicating artery (AComA) and AComA-related aneurysms according to their localization, angiographic architecture, and morphological features. MATERIAL and METHODS: In this study, 124 patients with AComA and AComA-related anterior system aneurysms we...
AIM: To investigate the effects of different radiation doses on the development of the neural tube defect in chick embryos using computed tomography (CT), and assess its correlation with survivin and Bcl-2 expressions. MATERIAL and METHODS: A total of 150 chicken eggs were used and grouped into fi...
AIM: To define the natural course of kyphosis, and to evaluate the efficiency of a new technique in surgical correction of kyphosis seen in myelomeningocele(MM) patients. MATERIAL and METHODS: We retrospectively reviewed our patients with MM. The rate of kyphosis, mean angle of progression and me...
AIM: To assess and compare the antioxidant capacities of high-grade gliomas (HGG) according to their grades and the presence of isocitrate dehydrogenase 1 (IDH1) mutation using tissue thiol level measurement. MATERIAL and METHODS: Tissue thiol concentrations were measured in 41 HGG samples and 21 ...
AIM: To evaluate the neuroprotective effects of benidipine hydrochloride on the cerebral cortex tissues in rats exposed to cerebral ischemia-reperfusion (I/R) injury. MATERIAL and METHODS: Twenty-four male Wistar albino rats were randomly divided into three groups, and administered benidipine hyd...
AIM: To study the clinical profile, imaging features, intra-operative findings, post-operative outcome at discharge and at 6 months in patients with internal carotid artery (ICA) bifurcation aneurysm. MATERIAL and METHODS: Present study is a retrospective analysis of data of patients who underwent...
AIM: To compare the efficacy and safety of minimally endoscopic discectomy (MED), percutaneous endoscopic transforaminal discectomy (PETD) and percutaneous endoscopic interlaminar discectomy (PEID) in the treatment of L5/S1 lumbar disc herniation (LDH). MATERIAL and METHODS: From May 2012 to Janu...
AIM: To investigate the effects of trauma type and survival on biochemical parameters including blood urea, creatinine, and glucose levels on patients with traumatic brain injury (TBI). MATERIAL and METHODS: The medical records of 102 patients with TBIs who were admitted to the emergency departmen...
AIM: To investigate the incidence, types, morphological and morphometric properties of spina bifida on dry sacral bones. MATERIAL and METHODS: 110 dry adult sacrums gathered from the bone collections of the Laboratory of the Anatomy Department of Dokuz Eylul University School of Medicine were exam...
AIM: To evaluate the gram-negative nosocomial meningitis cases which were treated with intrathecal (IT) / intraventricular (IVT) antibiotics. MATERIAL and METHODS: Medical records were reviewed for IT/IVT antibiotherapy. Gram-negative nosocomial meningitis cases treated with IT/IVT antibiotherapy...
AIM: To show whether the glial fibrillary acidic protein (GFAP) levels are significantly higher in the serum of patients with mild traumatic brain injury or not. MATERIAL and METHODS: The level of serum GFAP was measured in 176 patients suffering from brain trauma. The ability of GFAP in predicti...
AIM: To investigate the effect of Propolis-gum Arabic as a nerve guidance channel. MATERIAL and METHODS: Male rats (n=24) were randomly divided into sham surgery, autograft, and Propolis+gum Arabic groups with equal numbers. Under anesthesia, the sciatic nerve was removed, and the gap between the ...
AIM: To investigate the effect of mitochondrial DNA (mtDNA) variants mainly in D-loop on glioma biology. MATERIAL and METHODS: Sanger sequencing of D-loop (15971?16451 bp) for 52 glioma patients was performed and the variations were statistically analyzed for gender, WHO classification, morphologi...
AIM: To investigate the anti-apoptotic and anti-oxidant effects of systemic uridine treatment in a rat model of sciatic nerve injury. MATERIAL and METHODS: Thirty-two adult male rats were equally randomized to Sham, Control, U100, and U500 groups. Sham rats received a sham operation by exposing th...
AIM: To compare the low-profile visualized intraluminal support (LVIS or LVIS Jr.) stent, which is a braided microstent, and Enterprise Vascular Reconstructive Device (VRD), which is fabricated using laser cutting technology, in the treatment of internal carotid artery aneurysms. MATERIAL and MET...
AIM: To determine the prevalence of open and closed posterior superior iliac spine (PSIS) using lower abdominal computed tomography (CT) examinations. MATERIAL and METHODS: Eight hundred and fifty (M/F:464/386) adult patients who underwent lower abdominal CT between January 2018 and December 2018...
AIM: To investigate the underlying conditions in children with torticollis. MATERIAL and METHODS: Between May 2016 and December 2019, 24 patients (10 girls and 14 boys; mean age, 8 years) presenting with twisted neck, neck pain, weakness of extremities, imbalance, and gait disorder were evaluated ...
AIM: To measure serum levels of thrombospondin-1 (TSP-1) and thrombospondin-2 (TSP-2) in patients with common brain tumors, namely high-grade glioma (HGG), low-grade glioma (LGG), and meningioma. MATERIAL and METHODS: For this prospective study, a total of 56 patients were operated on for supraten...
AIM: To investigate the relationship between clinical features and prognosis of the hippocampal sclerosis (HS) cases and International League Against Epilepsy (ILAE) histopathology classification. MATERIAL and METHODS: A hundred patients with refractory epilepsy who were operated with the diagnosi...
AIM: To investigate the effects of electromagnetic waves (EMWs) from mobile phones (MPs) on rat brains of rats by morphological and biochemical analysis. MATERIAL and METHODS: EMW was applied for two hours/day until birth in stand-by fetal and EMW fetal groups and postnatal 60th day in stand-by a...
AIM: To evaluate the long-term efficacy of temporal lobe epilepsy (TLE) surgery, and to emphasize the factors affecting seizure outcomes such as surgical technique nuances and micro-neuroanatomical details in TLE cases. MATERIAL and METHODS: In this retrospective analysis, 238 patients who underwe...
AIM: To compare the radiological and functional changes after multi-level laminoplasty between patients with cervical spondylotic myelopathy (CSM) and ossification of the posterior longitudinal ligament (OPLL). MATERIAL and METHODS: This study included 75 patients consisted with 32 of CSM (group A...
AIM: To assess the craniocervical junction (CCJ) by using radiological measurements in patients with adolescent idiopathic scoliosis (AIS) and Scheuermann?s kyphosis (SK), and to compare those reults with healthy adolescent population. MATERIAL and METHODS: Patients were assigned to three groups. ...
AIM: To analyze the Glutathione S-transferase (GST)-P, GST-M, cytochrome p450 (CYP)1-A1, CYP1-B1, and multidrug resistance (MDR)-1 expressions in malignant intracranial tumor (ICT)s, and to elicit their role on patient survival. MATERIAL and METHODS: GST-P, GST-M, CYP1-A1, CYP1-B1, and MDR-1 expre...
AIM: To measure C2-related morphometric parameters in a Turkish population. MATERIAL and METHODS: The computed tomography (CT) images of three groups (Group 1: paediatric cases aged 1-6 years, Group 2: age7-16 years, and Group 3: adult cases), who had cervical spine CT were used to measure some mo...
AIM: To show the relationship of lumbar intervertebral discs with the ureters by using computerized tomography (CT). MATERIAL and METHODS: Eighty patients (male/female: 42/38) with a mean age of 45 years were included in this retrospective study. An imaginary line passing through the tangential to...
AIM: To investigate the possible neuroprotective effect of boric acid (BA) by examining the changes in catalase (CAT) activity and levels of CAT and malondialdehyde (MDA) in brain tissues from rats with closed head trauma. MATERIAL and METHODS: The study consisted of three groups: control, traumat...
AIM: To analyze Chromogranin A levels on vasospasm in an experimental subarachnoid heamorrhage (SAH) model. MATERIAL and METHODS: Sixteen Wistar Albino male rats were used in study. Two groups are formed; first was consisting of 8 rats that experimental SAH was performed on them, second group was ...
AIM: To investigate the neurotoxic effects of strontium (Sr) compounds and Glycyrrhiza glabra (licorice, G. glabra). MATERIAL and METHODS: In this study, we conducted neurotoxicity assays on the human cortical neuronal cell line HCN-2 (CRL- 10742) to determine the potential neurotoxic effects of S...
AIM: To evaluate the patient groups with ankylosing spinal disorder (ASD) in terms of patients? characteristics, applied surgical approaches, and the outcomes. MATERIAL and METHODS: Between 2008-2019, 50 ASD patients (35?80 years) were operated on subaxial cervical fracture. The mean follow-up ti...
AIM: To analyze the results of stereotactic radiosurgery in 295 patients with residual Grade I meningiomas located at parasellar region, petroclival region, cerebellopontine angle and parasagittal region. MATERIAL and METHODS: A total of 295 patients with Grade 1 residual Meningiomas (197 women, 9...
AIM: To compare the effectiveness of laminoplasty and laminectomy with fusion in the treatment of patients with cervical spondylotic myelopathy (CSM). MATERIAL and METHODS: This study retrospectively reviewed 52 patients diagnosed with CSM who underwent either laminoplasty (LP group) or laminecto...
AIM: To design a novel hand-held retractor in order to reduce both operation time and radiation exposure in percutaneous pedicle screw placement. MATERIAL and METHODS: A total of 126 patients with single segment thoracolumbar vertebral fracture were surgically treated with percutaneous pedicle sc...
AIM: To evaluate the clinical results of patients who underwent unilateral dynamic rod stabilization after unilateral facet joint excision during spinal surgery. MATERIAL and METHODS: Twenty patients who were diagnosed with degenerative spinal disease or spinal tumor, who were operated on using a...
AIM: To determine the Wnt and SHH subtypes at the molecular level, and to compare them clinically by examining the changes in CTNNB1, AXIN, PTCH1, SMO, SUFU, and GLI1 mRNA expression in the medulloblastoma of a Turkish population determined according to patient selection criteria. In this context,...
AIM: To assess the role of our modified selective spinal nerve block (SSNB) procedure to predict the results of the subsequent Percutaneous endoscopic transforaminal lumbar surgeries (PETLS). MATERIAL and METHODS: We retrospectively analyzed data of patients who underwent our modified SSNBs before...
AIM: To analyze the clinical and surgical outcomes following gross total resection (GTR) and planned subtotal resection (STR) of giant intracranial epidermoid tumors. MATERIAL and METHODS: In this retrospective cohort study, all patients who were diagnosed with and operated for giant intracranial...
AIM: To present a new sonographic approach for lumbar transforamianal injection and compared it with traditional fluoroscopicguided approach. MATERIAL and METHODS: This interventional clinical study was conducted on 30 patients with a history of radicular lowback pain and a recent MRI indicating ...
AIM: To elucidate the association of the MTHFR, MTRR, and RAD54L gene variations with meningioma in Turkish cohort. MATERIAL and METHODS: DNAs were isolated from 87 retrospective meningioma samples. The MTHFR, MTRR, and RAD54L gene hotspot regions were amplified with specific primers via polymeras...
AIM: To investigate the effects of pregabalin on neural tube closure, and other potential effects on other organ systems in a chick embryo model. MATERIAL and METHODS: Fertilized chicken eggs were divided into groups, and different doses of pregabalin was administered. All embryos were harvested ...
AIM: To prove that VIM line technique created by using a mathematical model, can be used to identify the location of the ventral intermediate nucleus of the thalamus (VIM) MATERIAL and METHODS: Eleven patients with Parkinson?s disease (PD) were assessed. To determine the VIM location, 3-T magneti...
AIM: To determine the effect of posterior vertebral column resection (PVCR) in patients with paraplegia by using the American Spinal Injury Association (ASIA) score and Scoliosis Research Society (SRS)-22 questionnaire. MATERIAL and METHODS: Twelve patients with posttraumatic paraplegia and severe...
AIM: To ascertain whether the brain stem?s shape differs in patients with syrinx and without syrinx in cases with Chiari malformation Type I (CM-1), relative to healthy controls. MATERIAL and METHODS: Data on marked brainstem regions were obtained from 2D digital image files. Generalized Procruste...
AIM: To investigate neurogenesis in both adult and 3-week-old genetic absence epilepsy rats from Strasbourg (GAERS) to determine if newly formed neurons within the dentate gyrus (DG) form synaptic contacts with GABAergic (gamma aminobutyric acid) and glutamatergic nerve terminals and compared to t...
AIM: To evaluate the duration of hospitalization and the factors that increase this duration in cases treated in the neonatal intensive care unit with the diagnosis of a spinal neural tube defect (NTD). MATERIAL and METHODS: The demographic characteristics, NTD type and level, ventriculoperitoneal...
AIM: An increasing number of biomarkers of primary glioblastoma (GBM) have recently been described. We aimed to investigate the biological and clinical factors that affect survival in Turkish patients with primary GBM. MATERIAL and METHODS: The clinical and demographic data of all patients with pr...
AIM: To assess the feasibility of using an endoscopic-assisted lateral supraorbital (LSO) approach and an endoscopic endonasal transclival approach (EETA) for basilar apex (BAX) aneurysms. MATERIAL and METHODS: Ten cases with LSO approaches, with or without posterior clinoidectomy and endoscopic a...
AIM: To compare two synthetic graft materials, TachoComb®, a fibrin sealant composed of collagen, fibrinogen, thrombin and aprotinin and TissuDura®, a collagen-based biomatrix. MATERIAL and METHODS: Thirty Sprague?Dawley rats were randomly divided into three groups with 10 animals in each group. ...
AIM: To evaluate the role of endoscopic third ventriculostomy (ETV) as a primary or secondary treatment for hydrocephalus and factors affecting ETV success. MATERIAL and METHODS: Pediatric and adult patients with symptomatic hydrocephalus treated with ETV during 11 years (2008?2019) in our clinic...
AIM: To investigate the effects of early surgery on electrocardiographic (ECG) parameters in patients with aneurysmal subarachnoid hemorrhage (SAH). We compared the parameters from ECGs performed preoperatively and on the 2nd and 8th days after surgery with those of normal individuals. MATERIAL a...
AIM: To find out the anatomical changes in spine and pelvis, and the impact of various breast sizes of women on the quality of life. MATERIAL and METHODS: Sixty women with back pain volunteered to participate in this study. Their body mass index (BMI) was calculated. Clinical evaluation of the pai...
AIM: To examine foramen magnum morphometry and shape of Chiari malformation in comparison with a control group, and to contribute to the literature on whether Chiari malformation affects foramen magnum morphometry. MATERIAL and METHODS: In this study, cranial magnetic resonance images of 71 people...
AIM: To develop a protocol of balloon test occlusion (BTO) to perform single-photon emission computed tomography (SPECT) only in cases that require it by using mean stump pressure (MSTP). MATERIAL and METHODS: BTO was performed in 52 consecutive patients (derivation group). Using the derivation gr...
AIM: To examine the prevalence of symptomatic lumbar synovial facet cysts in lumbar spinal magnetic resonance imaging (MRI) of patients who admitted to neurosurgery clinic, retrospectively. Also, we aimed to report the clinic and radiologic outcome of patients with symptomatic spinal synovial cyst...
AIM: To present the magnetic resonance imaging (MRI) findings of a multinodular and vacuolating neuronal tumor (MVNT). MATERIAL and METHODS: The authors identified four patients with MVNT in the hospital between January 2015 and October 2019. Both the clinical and radiological data of the patients...
AIM: To analyze the expression of ADAMTS-1, NF-?B, and STAT3 in human pleomorphic xanthoastrocytoma specimens, and their correlation with glioma advancement. MATERIAL and METHODS: Pleomorphic xanthoastrocytoma tumor cell lines were treated with low and high doses of cytokines at 24 and 48 hours (...
AIM: To analyze the demographic characteristics and surgical outcomes of the largest series of patients with pediatric aneurysms reported in Romania, in consideration of the primary factors that lead to good long-term outcomes. Given that all cases involved ruptured aneurysms, we also investigated...
AIM: To determine the prevalence of a deep vein thrombosis (DVT) in osteoporotic vertebral fractures. MATERIAL and METHODS: Data were retrospectively collected from the medical records of 50 patients who were admitted to the Kameda Medical Center for osteoporotic vertebral fracture from 2019 to 20...
AIM: To evaluate the option of lumbar transpedicular fixation at the index level in patients who did not achieve adequate pain relief after lumbar total disc replacement (TDR) without evidence of device failure. MATERIAL and METHODS: Four patients (mean age, 47 years) presented with persistent low...
AIM: To compare the effect of ultrasound-guided modified thoracolumbar interfascial plane (TLIP) block versus local anesthetic infiltration on the wound site for post-operative analgesia in patients undergoing lumbar disc surgery with spinal anesthesia. MATERIAL and METHODS: This prospective and o...
AIM: To identify the characteristics of patients admitted to the emergency department with intracranial hemorrhages in the era of the COVID-19 pandemic. MATERIAL and METHODS: Seventy-eight patients with spontaneous intracranial bleeding who were admitted to emergency departments and treated in ne...
AIM: To compare the morphometric characteristics of the foramen ovale (FO) and foramen rotundum (FR), and their localization in the middle cranial fossa on the head and neck computed tomography images of patients with trigeminal neuralgia (TN) and asymptomatic individuals. MATERIAL and METHODS: T...
AIM: To investigate the effect of the number of open vertebral segments on the prognosis of newborns with midline closure defects (MCD), and the optimal timing for ventriculoperitoneal shunt (VPS) placement in those with MCD accompanied by hydrocephalus. MATERIAL and METHODS: A total of 63 patient...
AIM: To compare biomechanical results between different polymethylmethacrylate (PMMA) augmentation methods on failed lumbar pedicle screw models of animal vertebrae. MATERIAL and METHODS: Thirty lumbar vertebrae were harvested from six calves, and their bone mineral density was measured. 60 Polya...
AIM: To describe a new pedicle screw insertion technique, a modification of the funnel technique, and to compare this technique with conventional freehand screw insertion regarding their accuracy and complications in the thoracic spine. MATERIAL and METHODS: Three hundred forty-three patients who ...
AIM: To quantitatively analyze the contribution of different countries to neurosurgical journals, with emphasis on Turkey. Further, we discuss the factors affecting research productivity and strategies for improvement. MATERIAL and METHODS: Neurosurgical journals were selected from the Journal Cit...
AIM: To create an alternative synthetic dural graft using a parenteral solution bag made of polyvinyl chloride/polypropylene (PVC/ PP). MATERIAL and METHODS: Twenty-two albino rats were divided into the Sham, DC and BAG groups. Except for the Sham group animals, the right parietal bone of the rat...
AIM: To demonstrate the changes in Grade II and III glial tumors after WHO 2016 Brain Tumors Classification. MATERIAL and METHODS: The previous diagnoses and postoperative treatment of the 83 patients were recorded. We used real-time PCR (mutation assay) for the analysis of IDH1 and IDH2, while we...
AIM: To explore the predictive values of serum biochemical markers and apparent diffusion coefficient (ADC) on delayed encephalopathy after acute carbon monoxide poisoning (DEACMP). MATERIAL and METHODS: Seventy-nine patients were divided into two groups based on the onset of DEACMP 60 days after ...
AIM: To investigate and compare the therapeutic efficiency and radiographic measurement between the transforaminal approach and interlaminar approach in percutaneous endoscopic discectomy. MATERIAL and METHODS: From January 2017 to January 2018, 86 patients suffering from single lumbar disc hernia...
AIM: To evaluate the usefulness of the rostral line (R-line) as a new index for determining the degree of C2 lamina decompression in the context of ossification of the posterior longitudinal ligament (OPLL) extending to the C2 level. MATERIAL and METHODS: The R-line was devised based on the mechan...
AIM: To identify the risk factors for pediatric glioblastomas (GBMs), and to develop an effective prediction model to estimate the survival rate for these patients. MATERIAL and METHODS: Pediatric patients with GBM were extracted from the Surveillance, Epidemiology, and End Results database. Kapl...
AIM: To analyze certain magnetic resonance imaging (MRI) features as well as six major genetic biomarkers, investigated their associations, and evaluated their prognostic roles in glioblastomas (GBMs). MATERIAL and METHODS: Strict criteria included newly diagnosed GBM with optimal treatments. Simp...
AIM: To investigate the genetic etiology of Charcot-Marie-Tooth (CMT) disease or hereditary motor and sensory neuropathy (HMSN). MATERIAL and METHODS: We herein examined 55 non-related patients with a suspicion of CMT phenotype or HMSN using a customized multigene panel based on the next-generatio...
AIM: To study the changes in the distribution of and the transcriptional levels associated with α4- and α7-subtype nicotinic acetylcholine receptors (nAChRs) in the primary somatosensory (S1) and motor (M1) cortices of rats after electrical stimulation of the basal forebrain (BF). MAT...
AIM: To investigate the levels of vascular endothelial growth factor (VEGF) in the brain, and its soluble forms, namely sVEGFR1 and sVEGFR2, levels in the plasma of rats after cerebral ischemia. MATERIAL and METHODS: Rats were divided into three groups as follows: Group 1: Sham-operated group, Gro...
AIM: To evaluate the compatibility of medial antebrachial cutaneous nerve of the forearm (MACN) with medial pectoral (MPN) and musculocutaneous (MCN) nerves for the anastomosis from anatomical and histopathologic aspects. MATERIAL and METHODS: Ten brachial plexus specimens from five cadavers were ...
AIM: To determine the incidence of neuropathic pain (NP) in patients with thoracic disc herniation (TDH) and to determine whether there is any correlation between pain severity and herniation grade. MATERIAL and METHODS: A total of 110 patients diagnosed with TDH with chronic non-specific thoracic...
AIM: To evaluate the role of posterior dynamic stabilization (PDS) with kyphoplasty (KP) in the surgical treatment of unstable osteoporotic compression fractures, which are common in the elderly population. MATERIAL and METHODS: This study included 25 patients with osteoporotic compression fractur...
AIM: To present the findings and surgical results of foramen magnum meningioma surgeries performed by the authors. MATERIAL and METHODS: Ten patients operated between 2014 and 2019 were retrospectively analyzed in terms of age, gender, neurological examination, and postoperative status. The female...
AIM: To investigate the preventive effects of systemic honokiol and pentoxifylline treatments on epidural fibrosis (EF) in the experimental laminectomy model. MATERIAL and METHODS: Thirty-two rats were divided into four equal groups. Laminectomy was performed in all rats except for the control gr...
AIM: To evaluate fasciocutaneous flaps used for reconstruction of meningomyelocele defects in our clinic and to suggest an algorithm for flap selection. MATERIAL and METHODS: A retrospective analysis of 45 patients with meningomyelocele, who underwent repair with fasciocutaneous flaps, was carrie...
AIM: To utilize a national surgical quality registry to compare 30-day quality outcomes between repeat anterior cervical discectomy and fusion (ACDF) and cervical disc arthroplasty (CDA). MATERIAL and METHODS: The National Surgical Quality Improvement Project (NSQIP) Participant User Files (PUF) f...
AIM: To present the technical principles of the hydrogen peroxide head preparation method, and to demonstrate the high quality of anatomical studies performed using these specimens, particularly for arachnoid exploration. MATERIAL and METHODS: Five cadaveric heads were set with a 10% formalin solu...
AIM: To determine whether using gabapentin (GBP), especially in the first maternal trimester, would affect the neural tube development of embryos in an early stage chick embryo (ESCE) model. MATERIAL and METHODS: One hundred fertile specific pathogen-free (SPF) chick eggs were used to investigate ...
AIM: To compare the efficiency of distraction and ligamentotaxis in posterior spinal instrumentation of thoracolumbar retropulsed fractures according to the grade of spinal canal compression and fracture levels. MATERIAL and METHODS: This study retrospectively reviewed 56 patients diagnosed with t...
AIM: To look into the clinicopathological characteristics, surgical outcomes, and survival rates of adult patients with medulloblastoma. MATERIAL and METHODS: Adult patients (age>17 years) who had surgery in our clinic with the diagnosis of cerebellar mass between 2009 and 2015 and whose pathologi...
AIM: To evaluate the feasibility and long-term clinical results of combined surgical resection and high-dose methotrexate (HD-MTX) chemotherapy for primary central nervous system lymphoma (PCNSL) of the brain. MATERIAL and METHODS: Fifty-eight patients were diagnosed with PCNSL by histopathologica...
AIM: To evaluate diffuse axonal injury (DAI) patients according to DAI stage to identify risk factors that may affect clinical outcome. MATERIAL and METHODS: A total of 992 traumatic brain injury (TBI) patients visited our hospital between 2011 and 2016. Thirtyseven patients diagnosed with DAI wer...
AIM: To describe a deep convolutional generative adversarial networks (DCGAN) model which learns normal brain MRI from normal subjects than finds distortions such as a glioma from a test subject while performing a segmentation at the same time. MATERIAL and METHODS: MRIs of 300 healthy subjects we...
AIM: To investigate the morphology of the lower lumbar intervertebral foramina through using a digital three-dimensional (3D) simulation model to guide the endoscope through the intervertebral foramina. MATERIAL and METHODS: Individuals without disease affecting the lumbar vertebrae underwent comp...
AIM: To develop a scale in Turkish language for evaluating the surgical specialty residents? perceptions of educational climate in the operating room, with an emphasis on learning in the operating suite and planning the relevant change for improved and standardized training. MATERIAL and METHODS:...
AIM: To examine the variations in number, size, and shape of foramina transversaria (FTs) of cervical vertebrae, and to discuss their clinical importance. MATERIAL and METHODS: The FTs of 200 dry cervical vertebrae (C3?C7) from 40 spines were studied for the presence of variations in their number...
AIM: To clarify perfusion differences, and to determine whether children and adults respond similarly to surgical prevention and how brain perfusion stages before surgery predict outcomes in ischaemic moyamoya disease (MMD) in children and adults. MATERIAL and METHODS: A total of 355 patients with...
AIM: To identify the risk factors for aneurysmal intra-procedural rupture (IPR) of intracranial aneurysms suring endovascular treatment, and to discuss its management and outcomes. MATERIAL and METHODS: A total of 106 patients with cerebral aneurysm who have undergone endovascular treatment (EVT) ...
AIM: To compare the diffusion properties of brain metastases as imaging biomarkers in various types of tumours, to determine their histology and origin. MATERIAL and METHODS: Magnetic Resonance Imaging (MRI) and diffusion-weighted imaging (DWI) were used to retrospectively study the data of 143 p...
AIM: To compare an antiplatelet-preparation group with a no-preparation group to evaluate the effect of the antiplatelet preparation on procedural thromboembolism during endovascular thrombectomy (EVT) with diffusion-weighted imaging (DWI), retrospectively. MATERIAL and METHODS: From January 2017 ...
AIM: To compare the effects of sevoflurane and propofol anesthesia on perioperative cerebral oxygenation in patients undergoing carotid endarterectomy (CEA) under general anesthesia by using near-infrared spectroscopy (NIRS) monitoring. MATERIAL and METHODS: Institutional approval was obtained, an...
AIM: To reveal the efficiency of our surgical approach algorithm in patients with thoracolumbar pyogenic spondylodiscitis based on the involvement of anatomical structure. MATERIAL and METHODS: Data of patients who underwent debridement or stabilization surgery for thoracolumbar pyogenic spondylo...
AIM: To histopathologically evaluate and compare bone morphogenetic protein (BMP)-2, vascular endothelial growth factor (VEGF), and vitamin D receptor (VDR) levels in the ligamentum flavum (LF) of patients with lumbar spinal stenosis (LSS) and lumbar disc herniation (LDH). MATERIAL and METHODS: S...
AIM: To investigate and compare the efficacy and safety of vagus nerve stimulation (VNS) therapy in different types of epilepsy. MATERIAL and METHODS: Patients, who were implanted with VNS between the years 2005 and 2020, were retrospectively included in the study. Age, gender, age at seizure onse...
AIM: To compare external ventricular drain-related infection (EVD-RI) rates of two Academic Medical Centers in Turkey and the US in order to determine the key factors. MATERIAL and METHODS: We performed an observational retrospective cohort study to compare the EVD-RI rates between two hospitals ...
AIM: To present a series of medically refractory focal epilepsy patients with multiple or eloquent epileptogenic zones (EZs) in whom a responsive neurostimulation (RNS) system was used as a complementary modality to surgical resection. RNS was also used as a diagnostic tool to monitor long-term ep...
AIM: To develop an approach for atrial application of ventriculoatrial (VA) shunts after revealing the venous anatomy with facial and cervical anatomical dissections. MATERIAL and METHODS: Five cephalic cadavers were used in the study. Facial and cervical regions of the cephalic cadavers were exa...
AIM: To demonstrate the possibility of revision screw placement to the atlas, as well as define the safety zones and orientation angles. MATERIAL and METHODS: This retrospective study analysed the records of four patients who were operated for AAI earlier. Because they needed revision of Atlas sc...
AIM: To evaluate the clinical features, treatment approaches, and outcomes of glial tumors in children. MATERIAL and METHODS: Files (2006 to 2020) of children diagnosed with glial tumors and followed-up were reviewed retrospectively. Information regarding demographic and clinical characteristics, ...
AIM: To discuss seizure outcomes of patients with invasive electroencephalography (EEG) monitorization (IEM) following their epilepsy surgery at our centre. MATERIAL and METHODS: Forty-seven patients suffering from refractory epilepsy and who were evaluated by invasive EEG were included in this r...
AIM: To evaluate the effect of various temperatures and durations of radiofrequency thermocoagulation (RFT) for the treatment of low back pain that is caused by facet joints. MATERIAL and METHODS: This is a randomized controlled, double-blind study. Patients diagnosed with facet syndrome were ran...
AIM: To investigate the safety of combined cranioplasty (CP) and ventriculoperitoneal shunt (VPS) placement. Furthermore, we investigated whether the sequence of these procedures affects the postoperative complication rates associated with staged CP and VPS placement. MATERIAL and METHODS: We ret...
AIM: To analyze the prognostic factors and treatment outcomes of neuroblastoma patients with brain metastasis. MATERIAL and METHODS: The medical records of 7 patients with brain metastasis among 120 neuroblastoma patients treated with radiotherapy between June 2002 and December 2018 at our departm...
AIM: To evaluate the impact of primary decompressive craniectomy (DC) on the functional outcome in patients with post traumatic acute subdural hematoma (SDH). MATERIAL and METHODS: A retrospective cohort analysis of 92 patients with post traumatic acute SDH who underwent primary DC and evacuation...
AIM: To compare endovascular and surgical treatment methods for cerebral aneurysms focusing on mortality. MATERIAL and METHODS: The study included 187 patients who had undergone aneurysm treatment. The patients were divided into four groups according to their treatment modality and subarachnoid he...
AIM: To assess the presence of isocitrate dehydrogenase (IDH) 1 mutation in glioblastomas using real-time polymerase chain reaction (RT-PCR), which is the gold standard in the diagnosis of IDH1 mutation; by immunohistochemistry (IHC), which is available in most of the pathology laboratories; and b...
AIM: To determine the relationship between the occurrence of lumbar L4-5 disc herniation (LDH) and the size of psoas muscles. MATERIAL and METHODS: The cross-sectional areas (CSAs) of the psoas muscles were measured at the L4-5 disc level on axial MRI of patients with LDH who were admitted to the ...
AIM: To study the operative approaches for posterior inferior cerebellar artery (PICA) aneurysms or understanding the different pathologies that can affect this artery, and to present detailed knowledge of this artery?s anatomy. MATERIAL and METHODS: The present study analyzed the different variat...
AIM: To evaluate the efficacy of human adipose-derived stem cells (h-ADSCs) in spinal fusion in an osteoporotic rat model. MATERIAL and METHODS: Female Sprague-Dawley rats (n=40) underwent ovariectomy and were then randomly assigned into two groups: ovariectomy (OVX) (OVX + fusion) and h-ADSCs (OV...
AIM: To evaluate the preoperative and postoperative clinical and radiological findings of patients treated surgically for cervical spondylosis. MATERIAL and METHODS: The patients included in the study (n=32) were divided into three groups according to their preferred surgical approach. These surg...
AIM: To present a series of hydrocephalus cases treated with different endoscopic techniques, and to compare their surgical outcomes. MATERIAL and METHODS: Sixty-one patients underwent endoscopic approach for treating hydrocephalus over a 5-year period. Forty-six patients were children. Three sur...
AIM: To describe a surgical technique for removal of hematomas in the third ventricle in patients with high-grade aneurysmal subarachnoid hemorrhage (SAH) and report our intraoperative observations and surgical and clinical outcomes. MATERIAL and METHODS: Ninety-four patients with high-grade aneur...
AIM: To assess interrater and intrarater reliability of postoperative plain radiographs, which are routinely performed to confirm the correct placement of the catheter tip after intrathecal drug delivery systems (IDDS) implantation. MATERIAL and METHODS: This was a retrospective analysis of plain ...
AIM: To evaluate whether adding an extra anchoring point to the construct by passing the crosslink through a hole in the spinous process (trans-spinous crosslink technique), may prevent screw loosening by increasing the pull-out strength. MATERIAL and METHODS: Twenty-four fresh-frozen single lumba...
AIM: To see how thyroxine affects the sensory and motor function of a damaged sciatic nerve in male rats. MATERIAL and METHODS: Forty adult male Wistar rats were allocated to four groups, 10 individuals each. Then, crush injury was done on the right sciatic nerve in all the groups using a vessel c...
AIM: To investigate whether fourth ventricle dimensions and tentorial angulation differ in a healthy control population in our evaluation of patients with CM-1 malformation using MRI. MATERIAL and METHODS: The radiological and demographic data from 251 patients with CM-1 followed in our clinic bet...
AIM: To evaluate changes in the Evans? index (EI) and callosal angle (CA) in patients who underwent lumboperitoneal (LP) shunting for idiopathic normal pressure hydrocephalus (INPH) and whose symptoms improved post-operatively. MATERIAL and METHODS: We retrospectively analysed patients who were cl...
AIM: To report on the endoscopic endonasal pituitary hemi-rotation approach (EPHRA) in a preclinical setting and in a preliminary clinical experience. MATERIAL and METHODS: EPHRA was performed in five fresh-frozen head and neck specimens (a total of 10 sides) and in a selected case of a right-sid...
AIM: To share the experience regarding management and follow-up of patients with Pregnancy- and lactation-related osteoporosis (PLRO) who were effectively treated. MATERIAL and METHODS: This case series presented 10 patients diagnosed with PLRO and treated from January 2010 to December 2019. Visu...
AIM: To demonstrate the feasibility of stent application to the third ventricular floor during endoscopic third ventriculostomy (ETV). MATERIAL and METHODS: We performed the ETV procedure on four fresh cadavers not exposed to head trauma. The neuroendoscope was introduced into the third ventricle ...
AIM: To study the relationship between temozolomide (TMZ) chemotherapy-resistant cells and stem cells in gliomas. MATERIAL and METHODS: The U251 glioma cell line was exposed to TMZ to generate TMZ-resistant colonies (U251/TMZ cell line) using the pulse drug method. The TMZ sensitivity of U251/TMZ ...
AIM: To analyze the clinical characteristics of thoracic ossified ligamentum flavum (OLF) and clarify prognostic factors. MATERIAL and METHODS: We retrospectively collected clinical data from the medical records of 29 patients who underwent decompressive surgery for myelopathy caused by thoracic O...
AIM: To evaluate the extrinsic dorsal venous pattern of spinal cord at the thoracolumbar level hypothesizing that any variant of these intrathecal venous pattern as probable factor for post lumbar pucture hemorrhagic complications. MATERIAL and METHODS: In a tertiary teaching institution, 25 adult...
AIM: To investigate the effects of midazolam (MDZ) and thiopental on neonatal and adult rat brains. MATERIAL and METHODS: The study included adult and 7-day-old rats that were administered 9 mg/kg of MDZ, 60 mg/kg of thiopental, or both. The Bax, procaspase-3, and caspase-3 levels were assessed us...
AIM: To present one of the largest retrospective cavernoma related epilepsy (CRE) studies which include divergent supratentorial locations operated and followed up at least 2 years. We also investigated the factors affecting the seizure outcome. MATERIAL and METHODS: This study includes a total of...
AIM: To evaluate the effects of factors, which are associated with carpal tunnel syndrome (CTS) prevalence, on disease severity. MATERIAL and METHODS: This retrospective study included 206 patients who were treated surgically for either moderate or severe CTS. Patients were grouped into moderate a...
AIM: To investigate the effects of subthalamic deep brain stimulation (STN DBS) therapy on sleep quality of Parkinson?s Disease (PD) patients and the relationship between sleep, motor symptoms, depression, and adverse effects of dopamine replacement therapies. MATERIAL and METHODS: A total of 26 ...
AIM: To present the quantitative development of the geniculate ganglion (GG) in foetal cadavers. MATERIAL and METHODS: This study focused on 60 temporal bones of 30 (15 female and 15 male) foetuses aged 18?30 weeks of gestation (mean age, 22.83 ± 3.49 weeks) to measure the length, width and area o...
AIM: To evaluate the effects of dexamethasone (Dex) treatment on neural crest cells and primary and secondary neurulation in chick embryos. MATERIAL and METHODS: Sixty fertilized eggs with an average weight of 65 ± 2 g were incubated in 60%?70% humidity at 37.2°C ± 0.1°C. After 26 hours of incuba...
AIM: To investigate the supplementation of alpha-lipoic acid (ALA) at the molecular level to determine its effect on primary cell cultures prepared from human intervertebral disc (IVD) tissue in an in vitro environment. MATERIAL and METHODS: Human primary cell cultures were prepared from IVD tissu...
AIM: To compare gene expression profiles between atypical meningiomas and normal meninges from the National Center of Biotechnology Information (NCBI) Gene Expression Omnibus (GEO) database to identify key genes and pathways. MATERIAL and METHODS: The microarray datasets GSE43290 and GSE16581 were...
AIM: To compare preoperative and postoperative sexual dysfunction in male patients diagnosed with lumbar disc herniation (LDH). MATERIAL and METHODS: This study was conducted in a single group with a pretest?posttest design. The sample included 32 male patients with LDH admitted to the neurosurger...
AIM: To examine the postoperative outcomes of electrode fixation using bone cement and Stimloc® in patients with Parkinson?s disease (PD) who underwent subthalamic nucleus (STN) deep brain stimulation (DBS). MATERIAL and METHODS: Between 2016 and 2018, permanent electrode fixation was performed in...
AIM: To present an early warning system (EWS) that employs a supervised machine learning algorithm for the rapid detection of extra-axial hematomas (EAHs) in an emergency trauma setting. MATERIAL and METHODS: A total of 150 sets of cranial computed tomography (CT) scans were used in this study wit...
AIM: To reveal the reliability and validity of the Turkish Lumbar Spine Instability Questionnaire for evaluating patients with lumbar instability and low back pain. MATERIAL and METHODS: A total of 100 patients with low back pain participated in the study. Test-retest and internal consistency ana...
AIM: To determine the rate of postoperative complications following surgery for Scheuermann?s kyphosis (SK) and ascertain whether restoration to an ideal Roussouly spine type reduced the incidence of postoperative proximal junctional kyphosis (PJK). MATERIAL and METHODS: We retrospectively screene...
AIM: To observe the effects of prone position extubation on respiratory side effects and hemodynamic parameters in patients who underwent lumbar spinal surgery. MATERIAL and METHODS: This prospective observational study included 60 patients extubated in either the prone (n=30) or supine (n=30) po...
AIM: To investigate the spatiotemporal dynamics of early cerebral blood flow (CBF) changes, cerebrovascular reactivity (CVR), and vascular responses to cortical spreading depolarization (CSD) in an experimental mild traumatic brain injury (mTBI) model with laser speckle contrast imaging (LSCI) tec...
AIM: To evaluate isocitrate dehydrogenase (IDH) mutation status and Ki67 percentages of tumors that were treated in our institution to determine whether these markers affected the initial diagnosis and survival rates. MATERIAL and METHODS: High-grade glioma patients, who were operated in our depar...
AIM: To study the effect of lesion of the ventral tegmental area (VTA) on food intake, water intake, alcohol consumption, and alcohol preference in the post-lesion period. MATERIAL and METHODS: A group of 38 young adult healthy male Wistar albino rats was included in this experiment. The groups o...
AIM: To assess the real challenges faced by neurosurgery residents in developing countries with limited resources and massive workload. MATERIAL and METHODS: This is a cross-sectional study based on the questionnaire filled by the neurosurgery trainees in Pakistan directed at their training, stre...
AIM: To analyze the most-cited articles on cranial and spinal epidural hematomas (EDHs). MATERIAL and METHODS: A title-specific search was performed on the Scopus database using the term ?epidural hematoma? in June 2020, with no publication date restrictions. The top 100 most-cited articles were c...
AIM: To investigate the co-occurrence of the arcuate foramen (AF) variation of atlas and intracranial vertebral artery (V4) hypoplasia and, therefore, to understand the pathophysiology of Barré-Lièou syndrome (BLS). The AF localizes on the vertebral artery (VA) sulcus posterior to the atlas and ha...
AIM: To review both the surgical-related, and hardware-related adverse effects of deep brain stimulation (DBS) in a single center over the last five years. MATERIAL and METHODS: All patients who underwent DBS electrode implantation at the Akdeniz University Hospital during the last five years par...
AIM: To investigate the protective role of Hippophae rhamnoides L. (Sea buckthorn, SBT) in cold plus immobilization stress-induced oxidative and nitrosative stress in rats. MATERIAL and METHODS: Thirty-two Wistar albino rats were randomly divided into four groups: control (i.p. physiological salin...
AIM: To reevaluate the medulloblastoma cases according to histomorphological and molecular features, and to investigate the relationship between the prognostic factors of the new WHO classification by applying Beta-catenin, YAP1, GAP1, p53, and INI1 antibodies immunohistochemically. MATERIAL and ...
AIM: To describe a new, minimally invasive, and safe access to foramen rotundum via the endoscopic endonasal trans-sinusoidal route for trigeminal nerve blockage. MATERIAL and METHODS: We studied 5 fresh cadavers bilaterally, and 10 pterygopalatine fossae and maxillary nerves using the endoscopic...
AIM: To introduce, and to evaluate the efficacy of the trans-superior articular process (trans-SAP) approach utilizing visual trephine in percutaneous endoscopic transforaminal lumbar discectomy (PETLD) for migrated lumbar disc herniation. MATERIAL and METHODS: This study included 98 patients, 50 ...
AIM: To evaluate the impact of carnosine on Purkinje neurons in rats exposed to a 900 Mhz electromagnetic field. MATERIAL and METHODS: This study evaluated 24 rats divided into the following three different groups: a control group, a group exposed to the electromagnetic field, and a group that was...
AIM: To report the clinical outcomes of microdiscectomy (MD) and endoscope assisted discectomy (EAD) techniques via the posterior approach in patients with cervical disc herniations (CDHs). MATERIAL and METHODS: The data were obtained from retrospective review of the patient?s charts and the lates...
AIM: To investigate the pullout strength of a pedicle screw reinserted through the same trajectory MATERIAL and METHODS: Fifty freshly frozen lamb L4 vertebrae were divided into the following five groups: Group 1, inserted with a 5-mm pedicle screw; Group 2, inserted with a 5-mm pedicle screw foll...
AIM: To explain the association between vertebral body hypoplasia and degenerative changes in the discovertebral complex and facet joints, and to assess the incidence of hypoplasia of the vertebral body at the L5 level. MATERIAL and METHODS: A retrospective analysis was made of 3,100 patients aged...
AIM: To propose a treatment algorithm, and to assess spinal instability in patients diagnosed with spinal lymphoma. MATERIAL and METHODS: Demographics, symptoms, tumor level and location, and presence of spinal instability were reviewed in 22 patients with spinal lymphomas. Each patient's neurolog...
AIM: To determine the clinical value of anocutaneous reflex (AR) in children with neurogenic bladder due to spina bifida (SB). MATERIAL and METHODS: Patients who were diagnosed with SB were prospectively evaluated; moreover, AR and bulbocavernous reflex were examined. Patients were divided into th...
AIM: To compare and analyze the effects of cranial suture reconstruction and frontal frame retraction for surgical treatment of premature closure of the sagittal suture. MATERIAL and METHODS: Infants with premature closure of the sagittal suture were included in this study. All infants underwent ...
AIM: To validate a new particulate embolization method using degradable starch microspheres (DSM) and intraarterial exogenous amylase administration, which allow for regulated temporary cerebral arterial embolization without compromising tissue perfusion. MATERIAL and METHODS: Twenty-four male New...
AIM: To compare the perioperative outcomes between single-day combined or separate-day staged surgeries for cervical spinal stenosis. MATERIAL and METHODS: A retrospective cohort analysis was conducted on consecutive patients admitted at a single institution between July 2015 and April 2019, who ...
AIM: To evaluate the effects of favipiravir (FVP) on cell viability and cytotoxicity in human degenerated primary intervertebral disc (IVD) tissue cell cultures. Furthermore, the protein expressions of hypoxia-inducible factor 1 alpha (HIF-1α), nuclear factor-kappa-b (NF-κB), and inter...
AIM: To analyze and to compare the factors that influence the recurrence of chronic subdural hematoma (CSDH) among patients treated with subdural non-suction-assisted passive drainage, subgaleal suction-assisted active drainage, and without drainage. MATERIAL and METHODS: We retrospectively evalua...
AIM: To report our experience of mechanical thrombectomy using the SOFIATM catheter, in terms of its effectivenessicacy and safety. MATERIAL and METHODS: Acute ischemic stroke patients with large vessel occlusions who underwent mechanical thrombectomy, with the SOFIATM aspiration catheter as the f...
AIM: To investigate the importance of elbow 3D computed tomography in surgical planning when deciding on the treatment surgical treatment method of the ulnar nerve entrapment in the cubital tunnel. MATERIAL and METHODS: In this study, 21 patients with cubital tunnel syndrome in our clinic were inc...
AIM: To investigate the histological and biochemical neuroprotective effects of secukinumab (SEC) on cerebral ischemia-reperfusion (IR) injury in Sprague-Dawley male rats. MATERIAL and METHODS: A total of 28 Sprague-Dawley male rats were randomly and equally divided into the following four groups...
AIM: To compare, and to analyze the effects of cranial suture reconstruction and frontal bone reconstruction in the operation of premature closure of the sagittal suture in infants. MATERIAL and METHODS: A total of 35 infants with simple premature closure of frontal suture were divided into the ex...
AIM: To compare lateral (direct [DLIF] or oblique [OLIF]) and posterior (posterior [PLIF] or transforaminal [TLIF]) lumbar interbody fusion results in patients with the same indication of discogenic low back pain. MATERIAL and METHODS: We enrolled 46 patients who underwent single-level DLIF/OLIF o...
AIM: To evaluate the clinical processes of patients with cervical postlaminectomy kyphosis (PLK) who underwent standalone posterior pedicle screw fixation surgery. MATERIAL and METHODS: The results of 21 patients with cervical PLK treated using the pedicle screw method between 2015 and 2018 were ...
AIM: To investigate the effects of deep brain stimulation (DBS) of the subthalamic nucleus (STN) on acoustic characteristics of voice production in Turkish patients with Parkinson's disease (PD). MATERIAL and METHODS: This study recruited 20 patients diagnosed with PD. Voice samples were recorded ...
AIM: To examine the screening value of the serum level of interleukin-1β (IL-1β) in aneurysmal subarachnoid hemorrhage (SAH), and to evaluate its association with the severity of initial bleeding. MATERIAL and METHODS: This case-control study was performed in Namazi Hospital, affiliated ...
AIM: To identify a novel material with biomechanical properties identical to the nucleus pulposus in the lumbar vertebrae of goats for use in intervertebral disc herniation surgery. MATERIAL and METHODS: In this laboratory-based experimental study, the silicone rubber material test group consisted...
AIM: To investigate the angiogenic effects of bevacizumab and imatinib on different meningioma tissue grades. MATERIAL and METHODS: In this study, in silico analysis of angiogenesis-related gene expression was carried out using previously reported datasets. Messenger ribonucleic acid expressions o...
AIM: To examine whether there was an improvement in the displaced fracture line in the follow-up, in which Anterior odontoid screw fixation (AOSF) was performed without manipulation and to determine the "displacement angle range" in which AOSF was possible. MATERIAL and METHODS: A total of 11 pati...
AIM: To evaluate the patients who had epilepsy surgery and pathologically proven focal cortical dysplasia (FCD) in order to further classify and discuss electroencephalography (EEG) findings in different pathological subtypes. MATERIAL and METHODS: This study included 19 refractory epilepsy patien...
AIM: To define a novel autologous bone graft insertion technique, and to evaluate its effects on bone fusion in patients with lumbar stenosis who underwent laminoplasty. MATERIAL and METHODS: Fifty-six patients and 142 vertebrae that underwent autologous bone graft insertion technique between 200...
AIM: To investigate the current practice of neurosurgeons and their perception of complications related to the securement of external drainage (ED) to the skin. MATERIAL and METHODS: We created a 24-points English language questionnaire on Google Forms covering the five main domains of care. The ...
AIM: To explore the ability of dynamic susceptibility contrast perfusion imaging (DSC-PI) to detect isocitrate dehydrogenase (IDH) gene mutation in gliomas. MATERIAL and METHODS: Preoperative DSC-PI data on histopathologically proven gliomas obtained between January 2015 and December 2019 were re...
AIM: To determine the effects of physical therapy and exercise programs that was performed after anterior cervical discectomy and fusion (ACDF) surgery on patient?s pain treatment, a retrospective study was designed. MATERIAL and METHODS: Of the 127 patients without neurological deficit who underw...
AIM: To discuss four different materials that are frequently used in cranioplasty, and to reveal their advantages and disadvantages. MATERIAL and METHODS: We retrospectively reviewed 85 of our cranioplasty surgeries between 2016 and 2019. Reconstruction surgeries were excluded from our study due t...
AIM: To conduct an animal experimental study to evaluate the safety and efficacy of the compression-resistant matrix (CRM) carrier for recombinant human bone morphogenetic protein-2 (rhBMP-2) in osteogenesis. MATERIAL and METHODS: New moldable CRM carrier, and with rhBMP-2 (new CRM carrier with rh...
AIM: To determine expression levels of miRNA-582-5p and miRNA-363 in serum of patients with Glioblastoma Multiforme and assess their biomarker potential. MATERIAL and METHODS: The study population consisted of 71 subjects including 35 patients and 36 healthy controls. Realtime polymerase chain re...
AIM: To describe a novel surgical approach to decrease the complication and recurrence rates of medulloblastomas. MATERIAL and METHODS: A retrospective review was performed. The novel technique was performed under similar conditions for all patients. The technique involved early intra-operative id...
AIM: To evaluate the bilateral vertical bipedicled procedure for the closure of large meningomyelocele defects and to emphasise some technical and clinical considerations. MATERIAL and METHODS: This procedure was used to close large meningomyelocele defects in ten patients (six males and four fem...
AIM: To investigate the suppression of aquaporin-4 (AQP4) synthesis through intracerebroventricular (i.c.v.) injection of antisense oligonucleotide after focal cortical contusion injury in mice. MATERIAL and METHODS: This study used 12-week-old female Swiss albino mice (weight, 20-25 g) to create ...
AIM: To investigate the effects of necrostatin-1 (NEC-1) on subarachnoid hemorrhage (SAH)-induced vasospasm in a rat model. MATERIAL and METHODS: A total of 59 male Wistar albino rats were randomly divided into six groups: control (group 1), sham (group 2), decapitation one hour after SAH (group 3...
AIM: To reveal the relation between postdiscectomy syndrome and foraminal stenosis due to height loss of disc level in patients operated for one-sided L5-S1 disc herniation. MATERIAL and METHODS: In this study, 100 operated patients due to L5-S1 one-sided disc herniation were included. Mean age w...
AIM: To investigate the regenerative potential and long-term functional effects of uridine treatment in a rat model of sciatic nerve injury. MATERIAL and METHODS: Male Sprague-Dawley rats were randomized to receive sham surgery plus saline (Sham group), right sciatic nerve transection and primary...
AIM: To examine the relationship between the morphologic features of the internal carotid artery (ICA) and symptoms affecting cerebral blood circulation including type 2 diabetes mellitus (T2DM) and hypertension (HT). MATERIAL and METHODS: In this study, retrospective morphometric analysis of ICA ...
AIM: To evaluate the parameters that affect bone retropulsion and restoration in patients with thoracolumbar junction (TLJ) vertebral compression fractures (VCF) without neurological deficits who underwent balloon kyphoplasty (BKP). MATERIAL and METHODS: Thirty-one of Frankel E and Arbeitsgemeinsc...
AIM: To determine the prevalence, location, and dimensions of interthalamic adhesions (ITAs) in Indian brains. MATERIAL and METHODS: We examined 100 human brains [50 cadaveric and 50 magnetic resonance (MR) images] in the midsagittal plane for the presence or absence of ITAs, their location in the...
AIM: To evaluate the surgical experience of the senior neurosurgeon to define the lesion, radiology, and technique-related factors that affect the diagnostic yield and complications, along with the literature review. MATERIAL and METHODS: Documents were examined for consecutively performed frame-b...
AIM: To reveal the roles of CXCL13 and miR-186-5p in a rat model (adult male Sprague-Dawley rats, 7?8 weeks old, 180?200 g) of trigeminal neuralgia (TN) established via chronic constriction injury of the infraorbital nerve (ION-CCI). MATERIAL and METHODS: The results of behavioural tests and the e...
AIM: To investigate the recurrence rate of atypical meningiomas after surgery (with or without adjuvant radiotherapy), and to determine which factors were related with recurrence. MATERIAL and METHODS: Data obtained from 83 patients who underwent surgery and histopathologically diagnosed with aty...
AIM: To assess the current situation in Greece regarding medical liability in neurosurgery, the involvement of anaesthetists in court decisions, the impact of court cases and decisions, the time taken to reach a final decision, and the relationship between these issues and judicial results. MATER...
AIM: To examine a series of surgically treated spinal arachnoid cysts in light of the literature. MATERIAL and METHODS: This was a retrospective study of patients treated in the Istanbul Umraniye Training and Research Hospital Neurosurgery Clinic. A total of 18 patients with spinal arachnoid cysts...
AIM: To evaluate normal pressure hydrocephalus (NPH) patients who admitted to clinic with a walking disability, depressed mood, cognitive dysfunction, and compromised quality of life in order to create a system for minimizing misdiagnosis, and inaccurate treatment of NPH at the first instance. MA...
AIM: To evaluate the effect of early myelotomy on glutamate concentrations in injured spinal cord tissue with a weight drop spinal cord injury rat model. MATERIAL and METHODS: The rats were assigned randomly to one of four groups, as follows: in group I, rats underwent laminectomy; group II, myel...
AIM: To introduce a new mathematical formula to predict sagittal vertical axis (SVA) changes after lumbar pedicle subtraction osteotomy (PSO). MATERIAL and METHODS: This cross-sectional study included 43 patients. Lateral full spinal radiographs were exported from Picture Archiving and Communicat...
AIM: To investigate in detail the innervation patterns of the psoas major and iliacus muscles in fetal cadavers. MATERIAL and METHODS: The innervation patterns of 94 psoas major and 94 iliacus muscles belonging to 47 fetuses (28 males, 19 females) aged between the 18th-40th gestational weeks in th...
AIM: To identify subgroups of cases with ventriculomegaly who will benefit from the cerebrospinal fluid (CSF) diversion procedures, n patients with post-traumatic hydrocephalus (PTH), and to identify the risk factors for its development to minimize its occurrence. MATERIAL and METHODS: We analyzed...
AIM: To investigate the changes in type II neuregulin-1 (NRG-1) during the regeneration process following autologous sciatic nerve transplantation in rats. MATERIAL and METHODS: In total, 40 healthy male Sprague-Dawley (SD) rats of clean grade with body weights between 250 g and 300 g were random...
AIM: To evaluate the efficiency of two models for prognostication of patients with isolated traumatic brain injury. MATERIAL and METHODS: The models developed with the data of the patients who applied within ten years were subjected to internal validation with the data of the patients who applied w...
AIM: To explore the surgical approach, technique and clinical effect of treating basilar bifurcation aneurysms. MATERIAL and METHODS: The clinical data of basilar bifurcation aneurysms treated by neuro-microsurgery are retrospectively analyzed in from September 2013 to September 2018. The aneurysms...
AIM: To explore the extent to which LNC01296 inhibits the miRNA-29c expansion genes Birc2 and Bak1 from causing damage induced by brain expansion and reimplantation. MATERIAL and METHODS: A total of 120 adult male experimental rats were divided to verify the effects of miRNA-29c and LNC01296 on b...
AIM: To illustrate the role of CBX8 -a protein involved in protein metabolism and chromatin regulation/acetylation- in glioma cells, especially in DNA damage repair pathways. MATERIAL and METHODS: Detect CBX8 expression in glioma cells and clinical samples by qPCR and Western blot. Overexpression ...
AIM: To design a practical, low-cost, and freely mobile training model for biportal endoscopic spine surgery to improve the surgeons? abilities in basic endoscopic skills, including triangulation, two-dimensional visualization, and one-handed control of the instruments. MATERIAL and METHODS: The tr...
AIM: To evaluate the efficacy and safety of combined transforaminal anterior epidural steroid injection (TAESI) and dorsal root ganglion pulsed radiofrequency (DRG-PRF) therapy on the radicular neck pain. MATERIAL and METHODS: The results of 84 patients with cervical radicular pain who underwent c...
AIM: To describe, and to evaluate the clinical and radiological characteristics of pediatric cavernous malformations (CMs) and the surgical approaches and their outcomes in a single center. MATERIAL and METHODS: We retrospectively reviewed pediatric patients with CMs that were treated in our cente...
AIM: To investigate the possible reasons of failed conservative treatment of osteoporotic thoracolumbar vertebral compression fractures (VCFs). Sagittal balance impairment may weaken union by increasing the load on the fracture line. Most osteoporotic vertebral fractures occur in the thoracolumbar...
AIM: To explore the efficacy and possible mechanisms of Low-intensity focused ultrasound (LIFU) in alleviating spasticity caused by Spinal cord injury (SCI). MATERIAL and METHODS: We selected male Sprague?Dawley rats as subjects and performed transverse injuries on the T9 vertebra of their spinal...
AIM: To detect the silent pulmonary thromboembolism (SPTE) frequency in patients who underwent craniotomy for a brain tumor, and to examine the correlation based on the data obtained from patients. MATERIAL and METHODS: Overall, 100 patients with brain tumors were included in the study. The mean a...
AIM: To assess the role of topical administration of tranexamic acid (TXA) on intraoperative and postoperative blood loss of patients undergoing posterior cervical laminectomy and lateral mass screw ?xation (PCLF) compared to a control group. MATERIAL and METHODS: The data of 88 patients that unde...
AIM: To evaluate the preoperative, operative, and postoperative outcomes of young and adult patients who underwent surgery for temporal lobe epilepsy related to hippocampal sclerosis (TLE-HS). MATERIAL and METHODS: This retrospective study assessed prospectively registered data collected from 2010...
AIM: To uncover factors that can predict the development of C5 palsy before surgery by evaluating several different parameters. MATERIAL and METHODS: A total of 177 patients who underwent surgery between 2015 and 2020 were included in the study. In total, C5 palsy was observed in 22 (12.4%) of our...
AIM: To investigate the importance of thoracic kyphosis (TK) for treatment preference in patients with Lenke Type 5C adolescent idiopathic scoliosis by comparing radiological outcomes of the patients who underwent selective fusion (SF) or nonselective fusion (NSF). MATERIAL and METHODS: Twenty-ni...
AIM: To investigate the surgical value of MER recordings and improve surgical technique by demonstrating the consistency between preoperative radiological STN volume and intraoperative neurophysiological STN length. MATERIAL and METHODS: Sixty-one patients with PD were enrolled. The volumes of the...
AIM: To investigate the predictive role of thiol/ disulfide homeostasis and Ischemia-modified albumin (IMA) levels for NTDs. MATERIAL and METHODS: A total of 71 pregnant women (31 with NTD and 42 healthy controls) were enrolled in this study. This prospective case-control study included pregnant w...
AIM: To compare the posterior cranial fossa (PCF) dimensions together with the measurements related to basilar invagination and platybasia of craniovertebral junction anomalies (CVJA) in CVJA (+) and CVJA (-) Chiari malformation Type 1 (CM1) patient groups with each other and with healthy control ...
AIM: To investigate the effects of a lumbar exercise program after single-level lumbar microdiscectomy on the recurrence of lumbar disc diseases. MATERIAL and METHODS: Between 2018 and 2021, 223 patients (104 women, 119 men, median age: 49 years) who received their first corrective surgery for lu...
AIM: To investigate the effect of vertebral artery stenosis (VAS) on the basilar artery tortuosity. MATERIAL and METHODS: A total of 158 patients (101 males; 57 females) were divided into two main groups depending on existence of the in the vertebral artery (VA). Then, these groups were divided in...
AIM: To investigate the efficacy of locally applied batimastat after laminectomy in preventing postoperative epidural fibrosis. MATERIAL and METHODS: Thirty-two Wistar albino male rats weighing 200?250 g were used. The rats were assigned to four different groups (I-Control group, II-sham group, II...
AIM: To investigate the prevalence and type of ponticulus posticus (PP) and ponticulus lateralis (PL) in the Chinese population by analyzing computed tomography (CT) scans, and to uncover the pathogenesis of PP and PL. MATERIAL and METHODS: A total of 4,047 cases were included in this study. We ev...
AIM: To perform an accurate primary repair of temporal bone defects. MATERIAL and METHODS: The temporal bone defect models were performed in beagles. Extended estimated patches of the defects were predesigned by 3D reconstruction software and molded from polyether ether ketone (PEEK) using a lathe...
AIM: To compare the clinical outcomes of Target 360 nano (TG) and Microplex hypersoft 3D (MH) used as a finishing coil (FC). MATERIAL and METHODS: From January 2018 to December 2020, we retrospectively reviewed 243 coil embolization procedures performed using TG (n=152) and MH (n=91) coils of 1mm ...
AIM: To evaluate the technical aspects of the Da Vinci Xi Surgical System in minimally invasive extreme lateral lumbar interbody fusion (XLIF) surgery in a swine model. MATERIAL and METHODS: Endoscopic discectomy and XLIF cage insertion were performed using a robot-assisted system. The time taken...
AIM: To show the effectiveness of minimally invasive surgery with external ventricular drainage systems (EVDS) in the treatment of chronic subdural hematomas by comparing with it with classic surgery with closed drainage system (CDS) with intracranial hematoma volume measurements and predict infec...
AIM: To elucidate the molecular mechanism underlying the repetitive transcranial magnetic stimulation (rTMS) -induced improvement in Parkinson?s disease (PD). MATERIAL and METHODS: We established a PD model by administering 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine to SAMP8 mice. The mice were...
AIM: To present the configuration of the tentorial venous sinuses, and to determine the optimal incision zone on the tentorium cerebelli. MATERIAL and METHODS: This study has been completed with 24 autopsied cadavers. For every cadaver, firstly, supratentorial tissues were removed and tentorial m...
AIM: To elucidate the prognosis, frequency, and diverse nature of pathologies for calvarial tumors among different age groups. MATERIAL and METHODS: Seventy-six patients who underwent surgery for calvarial lesions between January 2007 and March 2021 are included in this study. Clinical data obtain...
AIM: To investigate the preoperative and postoperative differences in the upper-body and spinal shapes of patients with scoliosis. MATERIAL and METHODS: Digitized two-dimensional X-ray images were used to obtain the shapes of the upper-body and spine. The preoperative and postoperative mean shapes...
AIM: To demonstrate the curative effect of digoxin on peripheral nerve damage with its anti-inflammatory role on interleukin (IL)-17. MATERIAL and METHODS: The study was conducted with 30 male Sprague Dawley albino mature rats, of which 10 formed the control group, 10 were surgically treated and a...
AIM: To assess anterior gradient protein 2 (AGR2) gene expression in patients with human glioblastoma (GBM) in comparison to levels in healthy brain tissues. MATERIAL and METHODS: We evaluated the expression levels of AGR2 gene in 34 tissue samples: 29 of them were derived from patients with glio...
AIM: To determine the limits, to show the effect of tumor consistency on resection rates and to present the sinonasal morbidity rate in patients with tuberculum sellae meningiomas who underwent endoscopic endonasal approach. MATERIAL and METHODS: We reviewed the medical data, radiological images, ...
AIM: To evaluate the effectiveness of intraventricular injection of rt-PA (Actilyse®) in patients with spontaneous intraventricular hemorrhage (IVH) who had undergone external ventricular drainage (EVD). MATERIAL and METHODS: This randomized clinical trial recruited 60 patients with spontaneous IV...
AIM: To retrospectively evaluate the relationships between morphometric measurements in craniovertebral junction, and the possible genetic basis of the disease in Chiari 1 malformation patients undergoing surgical treatment. MATERIAL and METHODS: We included patients who underwent surgical treatme...
AIM: To examine the effect of adiponectin administration on acute brain injury in an experimental model of cerebral ischemia/ reperfusion (I/R) in rats. MATERIAL and METHODS: The study animals were divided into the following four groups: group I, sham (did not undergo surgical intervention and di...
AIM: To describe in detail the gross anatomy of the superficial temporal artery (STA), its course and branches, its relationships with the branches of the facial nerve, and certain anatomical and surgical landmarks to preserve these structures in daily neurosurgical practice, and to use the STA du...
AIM: To present our experience on intracranial infections, and to determine the possible locations as well as the risk factors for surgical treatment. MATERIAL and METHODS: Over 13 years, 103 patients with intracranial infection underwent surgical evacuation. Seventy-one (68.9%) patients were men...
AIM: To investigate the effect of multilevel transforaminal lumbar interbody fusion (TLIF) procedures in lumbar degenerative spine conditions on the restoration of lumbar lordosis (LL) in patients with short- and long-level fusion, and to examine the associated radiological results. MATERIAL and ...
AIM: To investigate the demographic, clinical and radiological findings associated with treatment success after interlaminar epidural steroid injection (ILESI) in radicular pain induced by cervical disc herniation. MATERIAL and METHODS: In this retrospective study, the data of patients who receive...
AIM: To evaluate the effectiveness and outcomes of unilateral dynamic stabilization in patients with recurrent lumbar disc herniation (RLDH). MATERIAL and METHODS: Patients requiring an operation due to RLDH at the L4?5 level were included in the study.They divided into the following two groups: ...
AIM: To compare the efficacy of neuroendoscopic lavage (NEL) and shunt revision (SR) in the treatment of multiple shunt failures in children with hydrocephalus. MATERIAL and METHODS: The data of 56 pediatric patients who underwent surgeries for the treatment of shunt failure were retrospectively ...
AIM: To establish, and validate a practical nomogram to predict recurrence of chronic subdural hematoma (CSDH) in patients after initial burr-hole surgery. MATERIAL and METHODS: The prediction model was developed from a training set of 272 patients with CSDH who had undergone standard burr hole w...
AIM: To outline the variations in morphology and a few clinically relevant morphometric parameters of the sacral hiatus. MATERIAL and METHODS: The study included 50 dry human sacra, of unspecified sex, in the Department of Anatomy at a medical college in South India. The sex was determined using t...
AIM: To investigate the effect of fluid resuscitation and L-arginine administration on oxidant status markers, blood gases, lactate and apoptosis in the brain tissue of a rat model of TBI with hemorrhagic shock. MATERIAL and METHODS: A total of 60 rats were divided into six groups: control, isoton...
AIM: To investigate the outcomes of the simultaneous closure of bilateral cranial defects using custom-made three-dimensional (3D) titanium implants. MATERIAL and METHODS: Demographic data of 26 patients with bilateral cranial defects who underwent cranioplasty using the 3D custom-made titanium i...
AIM: To determine caregivers? impressions of the impact of STN-DBS on motor and non-motor symptoms of Parkinson?s disease (PD) in patients who underwent subthalamic nucleus deep brain stimulation (STN-DBS), evaluate the relationship of these changes with disease characteristics, and examine their ...
AIM: To retrospectively analyze the results obtained from the posterior-only approach in non-pathological traumatic thoracolumbar body fractures with spinal cord compression. MATERIAL and METHODS: A total of 17 patients with traumatic non-pathological thoracolumbar fractures were included in the ...
AIM: To investigate the safety and applicability of two main methods for treating mirror intracranial aneurysms, based on correlations in their geometric characteristics. MATERIAL and METHODS: We conducted a retrospective analysis on 125 patients who underwent 138 surgical interventions for MCA a...
AIM: To demonstrate the usability of chicken chorioallantoic membrane (CAM) as an angiogenesis model for the development and treatment of malignant tumors of the central nervous system. MATERIAL and METHODS: A fresh tumor tissue piece taken from Glioblastoma patients, a malignant tumor of the cent...
AIM: To elucidate the role of microRNAs (miRNAs) in the development of cerebral aneurysms. MATERIAL and METHODS: This study compared the expression levels of miR-26a, miR-29a and miR-448-3p in 50 samples each of cerebral aneurysm tissues and normal superficial temporal artery tissues. The miRNA ex...
AIM: To analyze the success rates of repeat endoscopic third ventriculostomy (re-ETV) procedure according to ventriculostomy orifice closure types in patients who have undergone a second neuroendoscopic surgery for non-communicating hydrocephalus. MATERIAL and METHODS: The study included 74 patien...
AIM: To investigate the effects of Contractubex® (Cx) on peripheral nerve regeneration and scar formation. MATERIAL and METHODS: A surgical procedure involving sciatic nerve incision in 24 adult male Sprague?Dawley rats followed by epineural suturing was performed. In weeks 4 and 12 following surg...
AIM: To understand the changing trends in pediatric head injury in a university hospital comparing two decades. MATERIAL and METHODS: The medical records of pediatric patients hospitalized for head injuries were evaluated retrospectively between 2000 and 2020 to investigate the epidemiological dif...
AIM: To assess differences in static/dynamic balance and plantar pressure distribution (PPD) in hyperkyphotic adolescents and young adults based on sagittal spinopelvic alignment changes. MATERIAL and METHODS: Twelve hyperkyphotic patients and 12 normal subjects were included in the study group an...
AIM: To present our series of cerebellopontine angle (CPA) meningiomas, and to provide some innovative surgical steps for safe removal of these tumors. MATERIAL and METHODS: The clinical, radiological, and surgical characteristics of 32 patients with meningioma in the CPA were retrospectively ana...
AIM: To evaluate the impact of the post-master PhD degree on publication productivity in neurosurgery. MATERIAL and METHODS: An online national electronic survey was designed based on the recent literature and factors related to publication productivity. The survey was conducted to simply evaluate...
AIM: To measure the baseline spinopelvic parameters and characterize the sagittal, and coronal plane deformities in patients with idiopathic normal pressure hydrocephalus (iNPH). MATERIAL and METHODS: We analyzed a series of patients at one academic institution who underwent ventriculoperitoneal ...
AIM: To report our experience with the 2.5-mm Surpass EvolveTM flow diverter (FD) in the treatment of distal small cerebral artery aneurysms. MATERIAL and METHODS: This study included 41 patients with 52 aneurysms. Clinical and radiological records and procedural and follow-up outcomes were revie...
AIM: To show the oddity of primary central nervous system lymphoma (PCNSL) and illustrate the histopathological and magnetic resonance imaging (MRI) characteristics of this disease entity. MATERIAL and METHODS: We obtained the histopathological diagnosis through stereotactic biopsy, and all lesion...
AIM: To demonstrate that decreased platelet count in patients with craniosynostosis increases the requirement for blood replacement, thus providing guidance to clinicians by revealing the time at which the platelet count decreases. Additionally, the relationship between the amount of blood transfu...
AIM: To determine the clinically significant association between pneumatization types of the sphenoid sinus (SS) and protrusion/ dehiscence of the optic nerve (ON) and the internal carotid artery (ICA). MATERIAL and METHODS: This prospective cross-sectional study was conducted between November 202...
AIM: To evaluate the optimal timing and outcome of fluoroscopically guided transforaminal epidural steroid injections (TFESI) for the management of radicular pain due to extruded lumbar disc herniation (LDH). MATERIAL and METHODS: In this clinical study, 305 individuals received fluoroscopically g...
AIM: To determine the localization of the greater occipital nerve and the third occipital nerve according to palpable bone landmarks and their relationship with muscles in the suboccipital region and to define an effective zone for clinical approaches. MATERIAL and METHODS: This study was conducte...
AIM: To compare percutaneous endoscopic lumbar discectomy (PELD) and the microscopic tubular technique, and to evaluate the outcomes of surgery. MATERIAL and METHODS: We collected information through retrospective analysis of patients with far-lateral lumbar disc herniation (FLLDH) from June 2015...
AIM: To identify the effect of patients with diabetes mellitus (DM) with traumatic brain injury (TBI) in Taiwan. MATERIAL and METHODS: Data from the trauma registry in Chang Gung Memorial Hospital, Linkou, Taiwan were collected and reviewed. Several clinical characteristics and outcomes were extra...
AIM: To optimize the Spontaneous intracerebral hemorrhage (sICH) early hematoma expansion prediction scoring table to adopt appropriate clinical treatment plans and improve the prognosis of sICH patients. MATERIAL and METHODS: A total of 150 patients with sICH were enrolled, and 44 had early hemat...
AIM: To investigate the effect of stellate ganglion block (SGB) on nociception in Parkinson?s disease (PD) rat models, and to clarify the associated mechanism. MATERIAL and METHODS: To generate PD nociception rat model 6-hydroxydopamine (6-OHDA) injection method was used. Paw withdrawal threshold...
AIM: To explore the changes in imaging after lumbar disc nucleoplasty in rabbits. MATERIAL and METHODS: Twenty-four rabbits were randomly selected for X-ray, computerized tomography (CT), and magnetic resonance imaging (MRI) at 2, 6, and 12 weeks post operation. Moreover, their L3/4, L4/5, and L5/...
AIM: To compare three different posterior mono-segmental instrumented models with a Lateral Lumbar Interbody Fusion (LLIF) cage in L4-L5 based on finite element (FE) analysis. MATERIAL and METHODS: Three different configurations of posterior instrumentation were created: 1. Bilateral posterior scr...
AIM: To report our experience with flow diverter devices in the treatment of intracranial aneurysms, and to share the efficacy and clinical results of the Derivo® flow diverter device in the endovascular treatment of cerebrovascular aneurysms. MATERIAL and METHODS: This retrospective study was con...
AIM: To present our experience of 44 consecutive carotid endarterectomy procedures in 42 patients and assess the efficacy and success of ICG-VA in the localization of the plaque sites, extent of the arteriotomy, evaluation of the flow, and presence of thrombus after closure. MATERIAL and METHODS:...
AIM: To evaluate the safety and efficacy of flow diverter stents (FDSs) for treating remnant or recurrent intracranial aneurysms that were treated surgically. MATERIAL and METHODS: The patients who were treated with FDSs due to remnant or recurrent intracranial aneurysms after microsurgery were i...
AIM: To evaluate the association between global cerebral edema (GCE) after subarachnoid hemorrhage (SAH) and its impact on functional outcome evaluated by the modified Rankin scale (mRS). MATERIAL and METHODS: This is a prospective cohort study with patients who were admitted to the hospital due t...
AIM: To compare the incidence of postoperative neuropsychological dysfunction in patients managed with cerebral saturation monitoring versus traditional approaches. MATERIAL and METHODS: A hundred patients undergoing elective intracranial surgery were divided into two groups to receive intraopera...
AIM: To establish a model of intracranial and spinal cord anaplastic ependymomas, and to find out their independent prognostic factors. MATERIAL and METHODS: Data from 305 patients with anaplastic ependymoma in the brain and spinal cord from the Surveillance, Epidemiology, and End Results (SEER) ...
AIM: To investigate the predictors of recurrence after gross total resection (GTR) that require early adjuvant radiotherapy upfront rather than at initial recurrence of atypical meningiomas (AMs). MATERIAL and METHODS: A retrospective study of gross totally resected AMs was conducted in a tertiary...
AIM: To evaluate, and to compare the clinical outcomes of minimally invasive surgery (MIS), and open surgery for single-level lumbar fusion over a minimum of 10-year follow-up. MATERIAL and METHODS: We included 87 patients who underwent spinal fusion at the L4 ? L5 level between January 2004 and ...
AIM: To evaluate the safety and efficacy of posterior transdural discectomy for thoracic disc herniation. MATERIAL and METHODS: The medical records of seven patients who underwent posterior transdural discectomy for thoracic disc herniation were retrospectively evaluated. RESULTS: Between 2012 an...
AIM: To determine a quantitative relationship between the postoperative clivus slope (CS) and the change in the Patient-Reported Japanese Orthopaedic Association (PRO-JOA) scores following reduction surgery of the basilar invagination (BI). MATERIAL and METHODS: A single center retrospective study...
AIM: To identify predictors of basilar invagination (BI) prognosis and compare diagnostic properties between logistic modeling and machine learning methods. MATERIAL and METHODS: We conducted a single-center retrospective study. Patients at our hospital who met the inclusion and exclusion criteri...
AIM: To evaluate the effectiveness of improved motor-evoked potentials (MEPs) in treatment of degenerative disc diseases using the transforaminal lumbar interbody fusion (TLIF) technique. MATERIAL and METHODS: Data of one hundred and eleven patients who underwent TLIF were retrospectively reviewed...
AIM: To construct a prediction nomogram model for the postoperative seizure outcomes in children with focal cortical dysplasia (FCD). MATERIAL and METHODS: We retrospectively reviewed the clinical data of 97 children with epilepsy secondary to FCD who had undergone resection surgery at Children?s...
AIM: To investigate the efficacy of Gamma Knife radiosurgery (GKRS) in patients with Burchiel type 1 and 2 trigeminal neuralgia (TN). MATERIAL and METHODS: A retrospective analysis of prospectively collected data of 163 patients who underwent GKRS between December 2006 and December 2021 was perfor...
AIM: To introduce a novel, low-cost technique for cranioplasty using a single standard polyvinyl chloride plastic skull model as a guide for cranioplasty flap development; to observe and to compare the functional and cosmetic outcomes. MATERIAL and METHODS: We conducted an observational, retrospec...
AIM: To determine the feasibility and efficacy of aura intervention in preventing the recurrence of temporal lobe epilepsy (TLE) by observing the changes in the seizure frequency and quality of life (QOL) scale score. MATERIAL and METHODS: A total of 160 patients will be selected from a pre-establ...
AIM: To evaluate the relationship between Golgi phosphoprotein 3 (GOLPH3) and vasculogenic mimicry (VM) in glioblastoma cells. MATERIAL and METHODS: Glioma tissues from 40 glioma patients with different pathological grades were collected. GOLPH3 and VM were evaluated by immunostaining in glioma ti...
AIM: To compare, and to analyze the effects of fronto-orbital band anterior displacement in the operation of premature closure of coronal suture in infants. MATERIAL and METHODS: A total of 31 infants with premature closure of coronal suture were randomly divided into two groups; experimental gro...
AIM: To measure the expression of translocator protein (TSPO) in brain tissue following traumatic brain injury (TBI), and to determine whether TSPO can predict patient outcomes. MATERIAL and METHODS: TBI patients requiring removal of intracranial hematoma were recruited from Wujin Hospital Affilia...
AIM: To compare the outcomes of distal anterior cerebral artery (DACA) aneurysm treatment using endovascular therapy (EVT) and surgical clipping, and to assess their risk factors. MATERIAL and METHODS: We retrospectively sampled and analyzed 31 patients treated for ruptured Distal anterior cerebra...
AIM: To investigate the antiproliferative and apoptotic effects of S-allyl cysteine (SAC) on C6 glioblastoma cells using two- and three-dimensional (2D and 3D) cell culture systems. MATERIAL and METHODS: Three groups of rat glioma cell line C6 were prepared: 2D-Control, 2D-SAC, 3D-CMC-Control, and...
AIM: To understand the characterization of the ossification process both in the synostotic suture, and the adjacent parietal bone. MATERIAL and METHODS: The surgical procedure for the 28 patients diagnosed with sagittal synostosis consisted of removing the synostotic bone as a whole, if possible, ...
AIM: To explore the potential activity of HOXA cluster antisense RNA 2 (HOXA-AS2), a long non-coding RNA (lncRNA), in epilepsy progression, as well as the mechanisms behind its activity. MATERIAL and METHODS: Kainic acid (KA) was used to treat rat astroglial CTX-TNA2 cells to establish a cellular ...
AIM: To examine the morphometric properties of the vessels forming the Willis polygon (WP) in patients with type 2 diabetes mellitus (T2DM) and hypertension (HT) and compare them with healthy individuals. MATERIAL and METHODS: Cranial Tomography Angiography (CTA) of 168 individuals were analyzed r...
AIM: To compare tissue levels of the regulatory enzymes related to the Krebs cycle between low, and high-grade supratentorial gliomas. MATERIAL and METHODS: Forty patients who underwent surgery for supratentorial gliomas (19 with low-grade and 21 with high-grade gliomas) were evaluated. The regul...
AIM: To elucidate the role of the TIR-domain-containing adaptor-inducing interferon-? (TRIF) dependent pathway in intervertebral disc degeneration (IVD). MATERIAL and METHODS: A total of adult male patients with low back pain (LBP) (+/- radicular pain) were further evaluated by magnetic resonance...
AIM: To demonstrated demyelination and remyelination of the optic nerve histologically by electron microscopy in an experimental model similar to the compression of pituitary adenomas on the optic chiasm. MATERIAL and METHODS: The rats were fixed to a stereotaxic device under deep anesthesia, and ...
AIM: To describe the role of metastasis-associated lung adenocarcinoma transcript 1 (MALAT1) in glioblastoma (GB) progression in patients concurrently diagnosed with diabetes mellitus (DM). MATERIAL and METHODS: Formalin-fixed paraffin-embedded (FFPE) tumor samples of 47 patients diagnosed with GB...
AIM: To present the properities of intraoperative sodium fluorescein video angiography (NaF-V) use in intracranial aneurysm surgery and to discuss the limitations of repeated NaF-V administration. MATERIAL and METHODS: The clinical findings and imaging results during and after surgery for patients...
AIM: To show the normal anatomy of the cerebral aqueduct, and the feasibility of the extreme anterior interhemispheric transcallosal approach to remove tumors within the aqueduct. MATERIAL and METHODS: This human cadaveric brain research was composed of ten formalin-fixed human brains and one inj...
AIM: To define whether characteristics of fluorescein staining help to distinguish low grade gliomas intraoperatively. MATERIAL and METHODS: We studied 46 patients with supratentorial newly diagnosed noncontrast-enhancing LGGs removed by fluorescence guidance under the YELLOW 560 nm filter. Patien...
AIM: To evaluate paraoxonase (PON), total antioxidant status (TAS), total oxidant status (TOS), high-density lipoproteins (HDL), CRP, AST, ALT, GGT, ALP levels in patients with head and multiple organ traumas. MATERIAL and METHODS: The study included 29 male patients undergoing treatment for head ...
AIM: To observe the exposure range of a neuroendoscope through the glabellar approach and measure the anatomical parameters to provide a basis for clinical application. MATERIAL and METHODS: A total of 10 adult cadaveric heads fixed with formalin were dissected by stratified local anatomy and sim...
AIM: To assess the outcomes of glioblastoma patients treated in our clinic over the last 10 years using a multimodality approach and cutting-edge techniques. MATERIAL and METHODS: In our study, we included 169 glioblastoma patients who were admitted to our clinic between 2009 and 2019 and receive...
AIM: To report a series of patients diagnosed with gangliogliomas (GG) in unusual locations; and to review the clinical and imaging features as well as surgical treatment and outcomes. MATERIAL and METHODS: A series of consecutive patients who underwent surgery for GGs at unusual locations, such a...
AIM: To evaluate the efficacy of percutaneous pain interventions in patients who previously underwent lumbar disc herniation surgery. MATERIAL and METHODS: We retrospectively analyzed 48 patients with persistent / recurring complaints who underwent lumbar disc surgery (LDS) and were treated with ...
AIM: To comprehensively analyze clinical presentation, diagnosis, and management approaches of brain tumors in infants under one year of age. MATERIAL and METHODS: We conducted a retrospective analysis of clinical data retrieved from medical records of infants who underwent surgical treatment for...
AIM: To understand the arachnoid microstructure during infrafloccular approach for facial nerve microvascular decompression (MVD). MATERIAL and METHODS: This study recruited 55 patients with hemifacial spasm who underwent MVD. Retrospective analyses of the MVD surgical videos were performed to re...
AIM: To investigate the safety and efficacy of endoport-assisted endoscopic techniques for removing intraventricular lesions. MATERIAL and METHODS: Data of patients with intraventricular lesions who were surgically treated by endoport-assisted endoscopic resection between January 2018 and February...
AIM: To construct a reliable prediction model for pediatric atypical teratoid/rhabdoid tumor (ATRT) patients. MATERIAL and METHODS: Population-based data of patients diagnosed with intracranial ATRT were extracted from the National Cancer Institute?s Surveillance, Epidemiology, and End Results dat...
AIM: To explore the effect of pathogenesis-based individualised thrombectomy on the clinical results and prognoses of acute intracranial large-artery occlusion. MATERIAL and METHODS: A total of 151 patients were included in this prospective study and divided into the control group (stent thrombec...
AIM: To examine the role and mechanism of colorectal tumor differential expression (CRNDE) in brain injury induced by ischemicreperfusion. MATERIAL and METHODS: Sh-SY5Y cells were cultured, and oxygen and glucose deprivation/reperfusion (OGD/R) injury tests were performed. The effects on SH-SY5Y c...
AIM: To conduct a meta-analysis for investigating the safety and efficacy of endoscopic third ventriculostomy (ETV) and extracranial shunting for patients with obstructive hydrocephalus. MATERIAL and METHODS: Randomized controlled trials (RCTs) of ETV and ventriculoperitoneal shunting (VPS) for ob...
AIM: To analyze the clinical and angiographic outcomes of interventional embolization under transarterial balloon protection technique in patients with cavernous sinus dural arteriovenous fistulas. MATERIAL and METHODS: In a single-center cohort of 30 patients undergoing cavernous sinus dural arte...
AIM: To investigate the neuroprotective effect of shilajit extract in experimental head trauma. MATERIAL and METHODS: Three groups of 33 Sprague Dawley Albino strain male rats were included in the study. Group 1 (n=11): trauma but not treated. Group 2 (n=11): trauma and treated with 0.5 mL / rat s...
AIM: To evaluate the effects of c-Jun N-terminal kinase (JNK) inhibition and signal blocking on hypoxia (hypoxia-inducible factor 1-alpha (HIF-1α)), differentiation and neurogenesis (bone morphogenetic protein (BMP4)), and the cytoskeleton (F-actin) in glioblastoma multiforme cells (GBMCs). ...
AIM: To determine risk factors predicting chronic subdural hematoma (CSH) recurrence is a common type of intracranial hemorrhage in elderly patients. Despite improved medical diagnosis and treatment, the reoperation rate remains high. MATERIAL and METHODS: A retrospective review of 291 CSH patient...
AIM: To compare, and to analyze the clinical and radiological signs between bidirectional and unidirectional screw fixation in single level cervical discectomy and fusion surgery. MATERIAL and METHODS: We retrospectively reviewed the data collected from 90 patients and divided them into the upper ...
AIM: To define the substantial role of the TLR4 signaling pathway in the MyD88-dependent pathway, and to evaluate the results of TLR4 activation in nucleus pulposus cells. Moreover, we aim to associate this pathway with intervertebral disc degeneration and magnetic resonance imaging (MRI) findings...
AIM: To investigate the effect of zinc oxide nanoparticles (ZnO-NPs) on neural tube development in early chicken embryos. MATERIAL and METHODS: Fifty pathogen-free fertilized eggs were initially incubated for thirty hours. The eggs were divided into 5 groups. In the control group (C) the egg?s ape...
AIM: To investigate the effects of cerebrolysin on inflammation, oxidative stress, apoptosis, and neurologic recovery in the setting of an experimental rabbit model of spinal cord ischemia/reperfusion injury (SCIRI). MATERIAL and METHODS: Rabbits were randomly divided into five groups: control, is...
AIM: To study the effects of niacin, a water-soluble vitamin, on inflammation, oxidative stress and apoptotic processes observed after mild traumatic brain injury (TBI). MATERIAL and METHODS: A total of 25 Wistar albino male rats were randomly divided into control (n=9), TBI + Placebo group (n=9)...
AIM: To compare the volumetric changes of intracranial arachnoid cysts (IACs) in different surgical techniques. MATERIAL and METHODS: Sixty-six patients who underwent IAC surgery in our department between 2010 and 2020 were studied retrospectively. Based on the surgical technique, clinical and vol...
AIM: To investigate the impact of obesity on postoperative morbidity and mortality in patients who underwent anterior cervical discectomy and fusion (ACDF). MATERIAL and METHODS: The American College of Surgeons? National Surgical Quality Improvement Project (NSQIP) files from 2006 to 2019 were q...
AIM: To review the cases of craniosynostosis secondary to ventricular shunting procedure. MATERIAL and METHODS: We retrospectively evaluated the medical records of all pediatric patients with hydrocephalus who were treated with ventriculoperitoneal shunt procedure between the years 2017 and 2021 a...
AIM: To evaluate the effect of intensive care follow-up and treatment methods on the prognosis of 28 patients admitted to the pediatric intensive care unit (PICU) due to stroke. MATERIAL and METHODS: The data of patients aged between 28 days and 18 years followed up between 2011 and 2021 were rec...
AIM: To compare the postprocedural cerebral diffusion-weighted imaging (DWI) findings in cases of carotid stenosis (CS)-related carotid plaques in terms of plaque morphology, degree of stenosis, and the use of a distal protection filter. Moreover, we used DWI to assess the asymptomatic cerebral em...
AIM: To examine the outcomes of microsurgery only versus combined microsurgery and embolization in treating cerebral arteriovenous malformations (AVM). MATERIAL and METHODS: A total of 62 patients (34 male and 28 female) with Spetzler?Martin grade 3 (n=44) and grade 4 (n=18) AVMs were examined. T...
AIM: To determine IDH1 R132H codon and the mRNA levels of PDK1, SLC2A1, EGFR, PTEN, and CD276 genes in brain tumors. MATERIAL and METHODS: This study included 15 brain tumor tissues [pituitary adenoma (1), pilocytic astrocytoma (1), mixed meningioma (2), mesothelial meningioma (2), atypical mening...
AIM: To investigate the possible association between COVID-19 infection and intraparenchymal hemorrhage (IPH) by examining changes in the preoperative and postoperative periods, mortality, and the impact of COVID-19 on IPH survival times. MATERIAL and METHODS: This cross-sectional retrospective an...
AIM: To investigate the relationship between epidural contrast spread patterns, and the treatment success of cervical interlaminar epidural steroid injection (CIESI) for cervical radicular pain. MATERIAL and METHODS: A total of 76 patients aged between 20 and 60 years who had neck and unilateral u...
AIM: To evaluate the effect of osteoplastic pterional craniotomy on temporal hollowing and its sequelae. MATERIAL and METHODS: A total of 97 patients who underwent pterional craniotomy for an aneurysm were analyzed retrospectively. Of these 97 patients, 63 underwent surgery via the conventional pt...
AIM: To assess the combined antitumor potential of theranekron (Trn) and cisplatin in neuroblastoma (NB), a pediatric tumor characterized by high prevalence and mortality rates. The investigation involved examining the interaction between theranekron (10-100 ?M) and cisplatin (40 ?M) within this c...
AIM: To determine if previous histological grading systems were sufficient or unreliable with a limited repository of modern techniques. MATERIAL and METHODS: The pathology reports of pediatric neurosurgery patients between 2019-2022 were accessed. Data on patients that needed unattainable further...
AIM: To compare the overall survival (OS), progression-free survival (PFS), and the impact of prognostic markers in unifocal and multifocal IDH wild-type glioblastomas (GBMs). MATERIAL and METHODS: This retrospective single-institutional study involved 177 GBM patients diagnosed between 2015 and ...
AIM: To explore the clinical effect and significance of preventive surgery for asymptomatic spinal lipomas in children. MATERIAL and METHODS: We retrospectively analysed the clinical data of 168 patients with asymptomatic spinal lipoma from April 2001 to June 2019, Shanghai Department of Neurosurg...
AIM: To assess the risk factors and simultaneously compared the benefits of procedures (clipping vs. coiling) in the recovery of function from oculomotor nerve palsy (OMNP) between cases with unruptured and ruptured posterior communicating artery (PCOM) aneurysms. MATERIAL and METHODS: Among the ...
AIM: To explore whether the combination of dexmedetomidine (Dex) and butorphanol (But) could benefit patients with traumatic brain injury (TBI). MATERIAL and METHODS: A total of 208 TBI patients admitted from February 2018 to January 2020 were randomly divided into four groups as follows: control...
AIM: To study on the association of lnc-MEG3/miR-181b and UCH-L1 in the progression of cerebral hemorrhage. Further facilitation the development of novel strategies that use their potential as a therapeutic targets. MATERIAL and METHODS: In this study, we studied the lncRNA MEG3 and miR?181b expre...
AIM: To show the abnormal cerebral hemodynamics, in high-pressure hydrocephalic patients, could be restored by shunt surgery, and the tympanic membrane temperature (TMT) could be used to non-invasively monitor this recovery process. MATERIAL and METHODS: One-hundred-and-four patients, with high-pr...
AIM: To identify the prognostic factors associated with cancer-specific survival in medulloblastoma (MB), and to use them for establishing a nomogram model to predict cancer-specific survival. MATERIAL and METHODS: In total, 268 patients with MB were included; they were rigorously respectively scr...
AIM: To analyze changes in the lumbosacral angle in children with tethered cord syndrome before and after spinal cord untethering surgery, and to determine the clinical value of such changes at the last follow-up. MATERIAL and METHODS: We retrospectively analyzed 23 children over 5 years old who w...
AIM: To evaluate the safety and accuracy of C1 and C2 pedicle screw placement using a three-dimensional (3D)-printed double template and compare them with those of the conventional method in a clinical study. MATERIAL and METHODS: DICOM format data from 60 cases with C1?C2 instability were obtaine...
AIM: To prove the superiority of the electromagnetic (EM) neuronavigation technique to increase the accuracy of intraventicular shunt catheter placement, and to reduce accompanying complications. MATERIAL and METHODS: A total of 21 patients with hydrocephalus [age range (years): 53?84] were studie...
AIM: To elucidate the function of ASK-1 and the role of its modulators in the induction of Temozolamide (TMZ) resistance in glioma and the underlying mechanism. MATERIAL and METHODS: ASK-1 phosphorylation, the IC50 of TMZ, cell viability, and apoptosis were assessed in the U87 and U251 glioma cel...
AIM: To explore the clinical efficacy of percutaneous vertebroplasty (PVP) combined with the polymethyl methacrylate-gelatin sponge (PMMA-GS) complex in the treatment of patients with osteoporotic vertebral compression fractures (OVCFs) accompanied by superior endplate injuries MATERIAL and METHO...
AIM: To compare the outcome of ruptured wide-necked anterior communicating artery (AcomA) aneurysms treated by clipping or endovascular therapy (EVT) by a dual trained neurovascular neurosurgeon. MATERIAL and METHODS: Among 130 patients with ruptured AcomA aneurysms with neck size of ?4 mm treated...
AIM: To investigate the presence of Sur1-Trpm4 receptors in high-grade glial tumors, and their relationship with edema volumes in preoperative magnetic resonance imaging (MRI) sequences. MATERIAL and METHODS: MRI sections were extracted from T1-weighted (T1W) and T2-weighted (T2W) sequences and fl...
AIM: To evaluate and compare open cranial vault remodeling (OCVR) and endoscopy-assisted craniosynostosis surgery (EACS) in patients with non-syndromic craniosynostosis and to develop an algorithm to determine the most appropriate surgery for each patient. MATERIAL and METHODS: Eighty-five childr...
AIM: To assess quality of life (QoL) in patients with parasagittal meningiomas (PSM), and to identify the risk factors for different levels of QoL. MATERIAL and METHODS: Patients were contacted and interviewed via telephone. A total of 136 patients with PSM underwent surgery at our institution be...
AIM: To present the best housekeeping genes including clival/sacral based chordoma, and the nucleus pulposus cells. MATERIAL and METHODS: We investigated 13 candidate reference genes in public chordoma array transcriptome datasets, validated these genes by using RT-PCR, and evaluated their stabili...
AIM: To investigate the relationship between planned drill approach angle and angular deviation of the stereotactically placed intracranial electrode tips. MATERIAL and METHODS: Stereotactic electrode implantation was performed in 13 patients with drug resistant epilepsy. A total of 136 electrode...
AIM: To discuss adherence to guidelines for the management of traumatic brain injury (TBI) in Türkiye and physicians? attitudes toward standardized, evidence-based medical practice. MATERIAL and METHODS: Survey questions were uploaded on the website www.surveymonkey.com and sent to the participant...
AIM: To provide a definition of arterial anomalies in the anterior communicating artery complex (ACoAC), determine their prevalence and investigate their relationship with aneurysms. MATERIAL and METHODS: The three-dimensional time-of-flight magnetic resonance angiography images of 1,857 adult pat...
AIM: To evaluate the effects of the combination of nimodipine and dexamethasone in subarachnoid hemorrhage (SAH). MATERIAL and METHODS: In this study, 35 female adult Wistar Albino rats were randomly assigned to four groups: Sham (n=8), SAH with no treatment (n=9), SAH with nimodipine (n=9, oral g...
AIM: To report mechanical thrombectomy (MT) for internal carotid artery (ICA) occlusion with cross-flow through the communicating artery (?with? group), and to compare it with ICA or middle cerebral artery occlusion without cross-flow (?without? group). MATERIAL and METHODS: This study included 10...
AIM: To identify the predictive factors associated with the survival of patients with a diagnosis of primary spinal cord lymphoma (PSCL). MATERIAL and METHODS: The Surveillance, Epidemiology, and End Results (SEER) database was used in this study, which involved 254 patients with PSCL. Data on th...
AIM: To elucidate the pro-tumorigenic role of IncRNA FOXD3-AS1 in glioblastoma. MATERIAL and METHODS: The expression of miR-3918, FOXD3-AS1, and CCND1 was measured in glioblastoma cells and tissues using reverse transcriptase quantitative PCR (RT-qPCR). The effect of FOXD3-AS1 silencing on the pro...
AIM: To investigate the feasibility and safety of lumbar spinous process split laminotomy by quantitative anatomic analysis. MATERIAL and METHODS: Nine fresh adult human cadaveric specimens (including 45 lumbar segments) were divided into 3 groups randomly. The simulated operations and anatomic mea...
AIM: To evaluate systemic immune inflammation index (SII), systemic inflammatory response index (SIRI), multi-inflammatory index (MII), and prognostic nutrition index (PNI), and to compare them with the previously reported inflammation-related hematologic index in lumbar discectomy (LD). MATERIAL a...
AIM: To compare the clinical and radiological outcomes of unilateral percutaneous kyphoplasty (PKP) surgeries performed using 3D printing technology in patients with osteoporotic compression fractures to conventional unilateral PKP surgeries. MATERIAL and METHODS: Patients with acute painful singl...
AIM: To evaluate the outcomes of dynamic stabilization in the multilevel degenerative spondylotic spine, and to compare the two dynamic systems (Dynesys® and Orthrus®) to reveal the increasing role of dynamic systems in the management of the degenerative spine. MATERIAL and METHODS: A total of 74...
AIM: To examine the effects of regulating increased blood glucose levels on plasma ET-1 levels after severe head trauma in rats. MATERIAL and METHODS: Traumatic diffuse brain injury-induced rats were followed for 7 days and were randomly divided into two groups of 36 rats. Pre- and posttraumatic bl...
AIM: To gain a better understanding of ischemia risk related to in-stent stenosis (ISS) or in-stent thrombosis (IST) of the middle cerebral artery (MCA) and lenticulostriate arteries after flow-diverting devices (FDD) deployment from the internal carotid artery (ICA) to proximal middle cerebral ar...
AIM: To identify the cage retropulsion (CR)-associated risk factors following lumbar interbody fusion (LIF). MATERIAL and METHODS: Clinical data of patients who underwent LIF between January 2014 and December 2018 at three medical centers were retrospectively analyzed. Patients were divided into C...
AIM: To analyze the demographic and clinical data of preterm or low birth weight newborns with periventricular hemorrhage. MATERIAL and METHODS: This retrospective study analyzed patients admitted to the neonatal intensive care unit of a Bahcesehir University School of Medicine-Affiliated Hospital ...
AIM: To evaluate and compare postoperative ischemic complications to determine the risk factors for ischemic complications following revascularization surgery for Moyamoya disease (MMD). MATERIAL and METHODS: This single-center retrospective study included 266 procedures between 2016 and 2021. Thre...
AIM: To explore the post-translational regulation of TRPV1, which plays an important role in neuropathic low back pain (NLBP). MATERIAL and METHODS: qPCR was used to examine the gene mRNA levels. Western blot was used to examine the protein level. NLBP rat model was established for confirming what ...
AIM: To retrospectively analyze and compare ultrasound-assisted localization in situ with the traditional, open incision method for treating cubital tunnel syndrome (CuTS). MATERIAL and METHODS: We retrospectively analyzed 51 patients treated between 2018 and 2022 and categorized them according t...
AIM: To examine the effect of cerebellar damage on the process of fracture healing. MATERIAL and METHODS: A total of forty-two male rats were selected at random and subsequently allocated into three distinct groups. The experimentals were divided into two subgroups within each group, with the inte...
AIM: To identify the patterns and types of neuorosurgical injuries sustained by victims of the double earthquakes affected ten cities with a population of 15 million in southern and central Türkiye. MATERIAL and METHODS: In this descriptive observational study, we retrospectively analyzed the medic...
AIM: To share the surgical outcomes of 31 patients who underwent endoscopic endonasal transsphenoidal surgery (EETS) at a single center. MATERIAL and METHODS: This retrospective analysis of 31 craniopharyngioma cases (2013?2022) with a minimum 6-month follow-up included demographic data, preoperati...
AIM: To investigate the therapeutic and neuroprotective effects of transcranial direct current stimulation (tDCS) application on the traumatic brain injury (TBI)-induced glutamate and calcium excitotoxicity and loss of motor and cognitive functions. MATERIAL and METHODS: Forty rats were equally div...
AIM: To analyze the efficacy of surgical resection versus brain biopsy combined with postoperative chemotherapy for primary central nervous system lymphoma (PCNSL) and to discuss a clinically standardized treatment protocol. MATERIAL and METHODS: Patients with a pathological diagnosis of PCNSL and...
AIM: To evaluate and compare clinical outcomes between the posterior short-segment pedicle fixation with injured vertebra fixation (PSPFI) and fixation without injured vertebra fixation (PSPF) for thoracolumbar burst fracture (TLBF). MATERIAL and METHODS: In this retrospective study, a total of 78...
AIM: To investigate the relationship among the modified Rankin scores of patients who had intracerebral hematomas at discharge, demographic characteristics of the patients, and the characteristics of the hematoma. MATERIAL and METHODS: In this study, patients diagnosed with intracerebral hematoma ...
AIM: To evaluate the efficacy of percutaneous ventriculoatrial shunting as a salvage method for pediatric patients with abdominal complications. MATERIAL and METHODS: Data obtained from 9 patients with ventriculoperitoneal shunt dysfunctions owing to abdominal complications, who underwent ventric...
AIM: To evaluate outcome of patients with hemifacial spasm surgically treated by microvascular decompression without the use of neuromonitoring and fix retraction. MATERIAL and METHODS: Of the 78 patients with hemifacial spasm operated by the senior author of this study between 2016 and 2020, 60 ...
AIM: To investigate the effectiveness of local halofuginone application for spinal epidural fibrosis (EF) after lumbar laminectomy in rats. MATERIAL and METHODS: Forty rats were equally divided into four groups (Groups I?IV; 10 rats in each group), and lumbar laminectomy was performed under gener...
AIM: To highlight the diagnosis, follow-up, and treatment options for diffuse leptomeningeal glioneuronal tumor (DLGNT) by examining pediatric patients diagnosed with DLGNT by molecular pathological evaluation and next generation sequencing at our center. MATERIAL and METHODS: In this retrospecti...
AIM: To demonstrate if the human cytomegalovirus (HCMV) genome, that is involved in the pathogenesis of gliomas, is part of the genomic DNA of glioma cells or not. MATERIAL and METHODS: The study included U87MG glioblastoma cell culture and tumor samples from glioma patients. The genomic DNA of t...
AIM: To examine how Naples prognostic score (NPS) relates to 6-month outcomes in patients with severe traumatic brain injury (STBI). MATERIAL and METHODS: We retrospectively analyzed the clinical data of 94 patients with STBI between September 2018 and September 2021. Galizia?s method was used to...
AIM: To compare the efficacy and feasibility of target area cement-enhanced percutaneous vertebroplasty (PVP) and conventional PVP in osteoporotic thoracolumbar non-total vertebral fractures. MATERIAL and METHODS: Retrospective analysis of one hundred and two patients treated in our hospital from ...
AIM: To investigate the effect of the biofilm-forming ability of the bacteria on treatment in rats by using biofilm-forming and nonbiofilm- forming strains of Staphylococcus aureus (S. aureus). MATERIAL and METHODS: Forty rats were divided into four equal groups as Group 1A, 1B, 2A, and 2B. All ra...
AIM: To evaluate the quality of life of patients with postural kyphosis (PK) compared with those adolescent idiopathic scoliosis (AIS) and Scheuermann Kyphosis (SK). MATERIAL and METHODS: Health-related quality of life (HRQoL) of adolescents with PK who were admitted to our clinic between January...
AIM: To compare the procedural features of transforaminal epidural steroid injection (TFESI) performed using two different needles (Stimuplex® and Quincke) in terms of procedure time, exposed radiation dose and adverse effects and complications, thus providing preliminary data to aid needle select...
AIM: To assess the frequency of thoracolumbar junction (TLJ) fractures (T10-L2) in survivors of the 2023 East Turkey earthquake. MATERIAL and METHODS: This single-center retrospective stdy evaluated 10 earthquake survivors, who were trapped under the rubble and rescued alive by rescue teams, and w...
AIM: To evaluate the clinical and radiological features, treatment modalities, and outcomes of unusual aneurysms located beyond the origin of the major branches in the posterior circulation, and to introduce changes in the recent treatment trends due to rapid innovations in endovascular technology...
AIM: To analyze clinical and imaging characteristics of post-traumatic posterior fossa extradural hematoma (PFEDH). MATERIAL and METHODS: Between 2018 and 2022, 51 patients were admitted to our tertiary care trauma center with a diagnosis of PFEDH. The management decision was tailored by an indivi...
AIM: To evaluate the occurrence of proximal junctional kyphosis (PJK) as well as both the clinical and radiologic outcomes of patients who underwent surgery for Scheuermann?s Kyphosis (SK) using either exclusively pedicle screws or a combination of proximal hooks and pedicle screws constructs. MA...
AIM: To determine whether there is a correlation between a deeply seated L5 vertebra in relation to the intercrest line (ICL) and the level of degeneration of lumbar discs. MATERIAL and METHODS: The study included 152 patients who underwent surgery for lumbar disc herniation. After analyzing the ...
AIM: To investigate whether the latency of spread could reflect the complexity level of intraoperative offending vessels in patients with typical hemifacial spasm. MATERIAL and METHODS: A total of 96 patients with typical hemifacial spasm who underwent microvascular decompression (MVD) in our dep...
AIM: To describe the time between external ventricular drain (EVD) implantation and mobilization in neurosurgery intensive care unit (ICU) patients with EVDs. Due to increased intracranial pressure, neurosurgery patients with external ventricular drain (EVD) who are admitted to the ICU frequently ...
AIM: To explore the use of histogram features on noninvasive arterial spin labeling (ASL) perfusion magnetic resonance imaging (MRI) in differentiating isocitrate dehydrogenase mutant-type (IDH-mut) from isocitrate dehydrogenase wild-type (IDH-wt) gliomas, and lower-grade gliomas (LGGs) from gliob...
AIM: To obtain health-related information internet usage is rapidly increasing. However, there are concerns about the comprehensibility and reliability of internet-accessed health-related information. The aim of this research was to investigate the reliability, quality, and readability of patient ...
AIM: To evaluate the relationship between the surgical techniques, the waiting time for surgery, postoperative distance between the graft-bone margin and the percentage of bone resorption, we analyzed patients who underwent cranioplasty. Cranioplasty is a necessary surgery to preserve brain tissue...
AIM: To determine the risk factors affecting the mortality rate and outcomes of patients with subarachnoid hemorrhage (SAH). MATERIAL and METHODS: The records of patients who underwent aneurysm treatment and intensive care unit (ICU) followup in our hospital between 2013-2021 were reviewed retrosp...
AIM: To assess clinical and radiological characteristics of simultaneous acute supra- and infratentorial epidural hematomas. MATERIAL and METHODS: We retrospectively reviewed the clinical and radiological data of 18 patients with a concomitant acute supra- and infratentorial epidural hematoma, who...
AIM: To evaluate the patients who underwent surgery for an anterior communicating artery (AcomA) aneurysm at our institution. We analyzed our case series and systematically reviewed the literature to identify factors that could predict the rupture of an intracranial aneurysm in patients with AcomA...
AIM: To explore the relationship between the retroperitoneal vasculature and anterior surface of the lower spine, and to establish values for aiding in prediction of the pertinence of anterior approach at the L4-L5 and L5-S1 intervertebral discs. MATERIAL and METHODS: The study included 13 fresh h...
AIM: To investigate the status of immune checkpoint molecules (CTLA-4 and TIM-3) in meningiomas and thus contribute to the development of new personalized treatment strategies. MATERIAL and METHODS: We utilized 402 cases of meningioma for this study. New blocks were prepared using the tissue micr...
AIM: To compare the Paraoxonase 1 (PON1) activity and phenotype distribution between lumbar disc herniation (LDH) patients and healthy individuals. MATERIAL and METHODS: This research included 40 LDH patients and 42 healthy individuals. Spectrophotometric assays were performed to determine the se...
AIM: To compare the results of fluoroscopically guided transforaminal epidural steroid injection (TESI) for pain reduction in ipsilateral early recurrent lumbar disc herniation (RLDH) with ipsilateral late RLDH. MATERIAL and METHODS: A total of 738 patients complaining of radicular pain due to ips...
AIM: To provide a comprehensive analysis for accurate screw size selection and insertion angle during surgical procedures. MATERIAL and METHODS: In this retrospective study, a total of 120 patients participated, resulting in the analysis of 240 occipital condyles using coronal, sagittal, and axial...
AIM: To investigate the impact of subthalamic deep brain stimulation (STN DBS) on apathy and the possible relationship between apathy, depression, and levodopa equivalent dosage (LED) in Parkinson?s Disease (PD) patients. MATERIAL and METHODS: A total of 26 patients have been evaluated via the Uni...
AIM: To compare the clinical and radiological results of patients who underwent multilevel posterior cervical fusion (PCF) with different end levels (C6 or C7). MATERIAL and METHODS: We collected radiographs and clinical results of all subjects who underwent 3 level or more PCF for degenerative d...
AIM: To report our institutional experience with full-endoscopic lumbar discectomy (FELD) and analyzed the pertinent literature. MATERIAL and METHODS: We retrospectively enrolled 100 patients who had undergone full-endoscopic discectomy for lumbar disc herniation using either an interlaminar (IL) ...
AIM: To describe the relationship between aneurysm size and location with the prevalence of headache at diagnosis and three- and six-month follow-up in a sample of patients with UIA. MATERIAL and METHODS: In this cohort study, patients were diagnosed with UIAs by digital subtraction angiography (D...
AIM: To share our clinical insights into octogenarian patients with unruptured intracranial aneurysms (UIAs) and evaluate the treatment strategies for this demographic. MATERIAL and METHODS: A retrospective analysis was conducted on data from 134 patients with a follow-up exceeding 6 months, all ...
AIM: To evaluate coagulation related gene model as a biomarker for predicting prognosis of gliomas. MATERIAL and METHODS: The mRNA expression and clinical data of glioma were downloaded from the TCGA and CGGA databases. Coagulation-related genes were downloaded from the KEGG database. The expressi...
AIM: To compare microsurgical clipping and endovascular therapy (EVT) for the management of shunt-dependent hydrocephalus (SDH) in patients with subarachnoid hemorrhage (SAH) and hydrocephalus. MATERIAL and METHODS: This retrospective study was conducted from July 2018 to December 2022 and include...
OBJECTIVE: This study provides preliminary information on stress distribution over the cervical spine in static physiologic loading conditions with the strain-gage technique. Limited numbers of in vitro studies have been conducted to investigate strain and stress patterns on the bony structure of...
OBJECTIVE: We investigated atypical and malignant meningiomas based on the Modified World Health Organization (WHO) histological criteria of malignance. METHOD: We present 45 surgical cases ( 26 atypical and 19 malignant) of total 504 meningiomas operated in Social Security Ankara Education and R...
We report an extremely rare case of ruptured saccular aneurysm at the junction of the hypoplastic basilar and the persistent primitive trigeminal artery (PPTA). Three-dimensional computed tomography (3D-CT) angiography can delineate the aneurysm of the right persistent primitive trigeminal artery...
OBJECTIVE: To assess the importance of microsurgery in 46 consecutive patients with intracranial arteriovenous malformations (AVMs). METHODS: Forty-six patients underwent microsurgical removal of their AVMs in our clinic from 1992 to 2003. There were 26 males and 20 females. Thirty-two patients (...
OBJECTIVE: Atrophic changes in the hippocampus that maybe seen during the late stage of traumatic brain injury (TBI) has been found to be highly related to the cognitive function. Previous studies detected by MR morphometric analysis have described atrophic changes in the hippocampus in patients,...
OBJECTIVE: To investigate the relationship between psychosomatic disorders and surgical outcome using the Symptom Check List-90-Revised (SCL-90-R) scale. METHOD: A cross-sectional study was performed to assess the impact of preoperative psychological factors on surgical outcome by using the Sympt...
OBJECTIVE: Quality of life is becoming more important within the concept of health care. Although clinical outcome still plays a big role in outcome measurement, patients' perceptions and understanding of their own health is being considered as significant. There are many measurement tools used f...
OBJECTIVE: To determine the number of articles originating in Turkey and published in international spine-related journals, to compare the number of spine-related publications of different disciplines, and to compare Turkey's spine-related publications with those of other countries. MATERIAL AND...
Awide application field, high precision and low complication and high success rates make Gamma Knife radiosurgery a standard treatment modality in neurosurgery. During Gamma Knife radiosurgery, 201 cobalt 60 sources are arranged in a hemispheric shape in such a manner that all the gamma rays are ...
OBJECTIVE: To determine the pullout strength of a Turkish-made pedicle screw (Tıpsan Posterior Instrumentation System, Tıpsan Tıbbi Aletler, İzmir, Turkey) compared to another well-known system (VSP System, DePuy AcroMed, Raynham, MA, USA). METHODS: A series of pedicle screw axial pullout tests w...
OBJECTIVE: To determine the construct stability and strength provided by a Turkishmade transpedicular fixation device (TIPSAN Posterior Instrumentation System, Tıpsan Tıbbi Aletler, İzmir, Turkey) compared to another well known system (Moss-Miami System, DePuy AcroMed, Raynham, MA, USA) in lumbar...
Multicentric gliomas are uncommon lesions of the central nervous system (CNS) with an unprecise rate of occurrence that diffusely infiltrate large portions of the brain. Glioblastoma multiforme is the most agressive form of gliomas and often has a distinct neuroimaging pattern with poor prognosis...
OBJECTIVE: The objective of this study was to investigate the effects of our surgical treatment method selection criteria for unstable cervical spinal injuries on the clinical outcomes. METHODS: Forty-seven consecutive patients with traumatic subaxial cervical spine instability were included in t...
OBJECTIVE: Although there are many reports on the anatomy of the lumbar plexus and knowledge of the morphological aspects of this plexus is of practical importance during the surgical and anaesthetical interventions, the thickness and length of the lumbar nerves and roots have not been studied in...
OBJECTIVE: Damage to the optic nerve and internal carotid artery is a serious complication of transsphenoidal surgery. The relationships of the sphenoid sinuses to the carotid artery and optic nerve were studied on computerized tomography and their clinical importance was discussed. METHODS: 45 ...
Glial tumors are the largest group of central nervous system tumors and glioblastoma multiforme is the most common form. Glioblastomas are anaplastic forms of gliomas. Their high incidence and malignity have led researchers to work hard to better understand and treat these tumors. It is now know...
Two human malignant glial cell lines, U-251 and NMCG-I were used in this study. NMCG-I cell lines were been established from an astrocytoma, grade III by our clinic. Glial cells secrete platelet-derived growth factor (PDGF) - like molecules that stimulate their own growth in an autocrine manner. ...
OBJECTIVE: The variations and anomalies of intracranial arteries may affect the treatment strategy and patients' outcome during neurosurgical and interventional neuroradiological procedures. METHODS: The construction of intracranial arteries was evaluated on cerebral angiograms in patients admit...
OBJECTIVE: The aim of this study was to investigate the usefulness of a mean vascular density (MVD) and proliferative activity labeling index (LI) in gliomas and meningiomas as biological markers in histological grading. MATERIALS AND METHODS: Our study included 18 cases of glioma and 36 cases of...
OBJECTIVE: The aim of this study was to compare the results of physical therapy combined with drug treatment and surgical intervention in patients with lumbar spinal stenosis. METHOD: Patients with lumbar spinal stenosis who were diagnosed clinically and with magnetic resonance imaging were incl...
OBJECTIVE: Synostotic plagiocephaly involving the coronal suture has been a matter of surgical debate and interest for pediatric neurosurgeons. In this report, the authors analyze the results of an operative series of anterior synostotic plagiocephaly. They also emphasize their experience on pati...
OBJECTIVE: To determine the treatment modalities of spinal ependymomas. METHOD: We report 33 patients with spinal cord ependymomas who had been operated on at the Department of Neurosurgery of Ankara University School of Medicine between 1990 and 2002. RESULTS: The mean age of the patients was 4...
OBJECTIVE: To determine the incidence of A1 segment hypoplasia/aplasia in a Turkish population and to discuss its importance in etiology of anterior communicating artery aneurysms (AComAA). METHODS: Cerebral diagnostic digital subtraction angiography (DSA) data from our institution between 2002 ...
OBJECTIVE: The effects of methyprednisolone (MP) and Vitamin E (Vit E) combination treatment was investigated in an experimental spinal cord injury model in rats. METHOD: Thirty-one rats were randomly divided into the five following groups: control group, MP group, Vit E group, MP+Vit E group a...
OBJECTIVE: To investigate the suitability of collagen matrix as a dural graft in the repair of experimental posterior fossa dura mater defects. METHODS: Thirty New Zealand white rabbits were deployed in the study and randomly divided into two groups. In both groups, a 1 cm_ piece of dura mater wa...
OBJECTIVE: Many surgical procedures are performed to decompress or to stabilise anterior C2. The aim of this study was to analyze the C2 body and the odontoid process (OP) in 80 dry C2 vertebrae from the Turkish population. MATERIAL AND METHODS: 15 parameters were measured using a Vernier caliper...
OBJECTIVE: To investigate the competence and the results of the treatment in which ‘Twist drill craniostomy and spontaneous hematoma efflux' is used in chronic subdural hematoma. METHOD: A prospective analysis of bedside percutaneous subdural tapping and spontaneous hematoma efflux after t...
OBJECTIVE: Malignant brain tumors have a diminished respiratory rate coupled with increased aerobic glycolysis when compared to low-grade brain tumors. However, there are a limited number of studies that compare the cytochrome oxidase activity and adenosine three-phosphate production in low and h...
OBJECTIVE: In this study, forty dried specimens of atlas and axis vertebrae were examined using direct anatomical measurements. METHODS: Various dimensions of the atlas and the axis vertebrae were quantitatively measured, with special emphasis on their relationship with the vertebral artery fora...
Central nervous system atypical teratoid/rhabdoid tumor (AT/RT) of infancy and childhood is a unique histological entity with an extremely aggressive natural history. In spite of multiple treatment regimens consisting of maximal surgical resection, radiation therapy, and multiagent aggressive che...
OBJECTIVE: Odontoid fractures make up 10-15% of all cervical fractures. Odontoid process fracture and ligament injury can end up with antero- and posterolisthesis at C1-2 complex, subluxation and spinal cord compression. METHODS: In this study, 12 cases with odontoid fractures treated at our dep...
OBJECTIVE: Aging, expressing postmaturational changes, is a process that contains a decline in the organism's simultaneous and harmonic response, adaptation potential, and resistance ability to external and negative events (stressors and stimuli). The free radical theory of aging puts forward tha...
We designed a microneurosurgical training model for residents in neurosurgery to practice the basic steps of the posterior fossa approach. The training material consisted of a fresh cadaveric sheep cranium. A four-step approach was designed to open the cisterna magna, access the fourth ventricle,...
Spinal trauma is relatively rare in pediatric patients. The anatomy and biomechanics of the growing spine produce failure patterns different from those in adults. Spinal injury in the pediatric trauma patient is a significant concern as the prevention of further neurologic damage and deformity an...
OBJECTIVE: This study evaluates the efficiency of interbody polyetheretherketone (PEEK) cage implantation in 85 consecutive cases treated for discogenic cervical disorders with radiculopathy or myelopathy. METHODS: Between the years 2002-2005, 85 patients were treated with cervical interbody fus...
OBJECTIVE: The aim of this study was to describe subjective and objective criteria for ultrasonographic diagnosis of the carpal tunnel syndrome (CTS). METHODS: The study population consisted of 165 hands of 114 cases with idiopathic CTS while the remaining 291 hands were asymptomatic. All hands ...
OBJECTIVE: This clinical study evaluated mixed tumor pathologies in the lumbar dural sac. Currently, there are few published clinical studies with longterm follow-up in the literature. METHODS: This is a retrospective review of the clinical presentation, diagnosis and management of 24 patients w...
OBJECTIVE: Hypoglossal-facial nerve anastomosis for the purpose of reanimating the muscles of facial expression is a well known procedure with variable published results. In this retrospective clinical study, we aimed to evaluate the results of our series of patients who underwent hypoglossal-fac...
OBJECTIVE: The objective of the present study is to display the significance of early intervention in large vessel injury associated with surgery of herniated lumbar disc and demonstrate how the complications of vessel injuries are evaluated by medical experts. METHODS: Our study was based on a ...
OBJECTIVE: To the best of our knowledge, a clinical study of lumbar disc pathologies associated with other spinal pathologies has never been published before. We determined clinical, radiological, surgical data, and long term results for cauda equina and conus medullaris syndromes (CCES) due to p...
OBJECTIVE: The cranio-orbitozygomatic (COZ) approach improves the surgical exposure by providing the shortest possible route to the lesion. We discussed the microsurgical anatomy of the region and described the steps for a safe COZ approach. METHODS: The COZ approach and its modifications were p...
A collagen mafrix (COL) gel was used to fill a 3 mm gap resulting from transection of rat sciatic nerve. The nerve was initially stabilized with a split polyethylene tubing in order to remove elastic tension at the nerve repair site. The contralateral sciatic nerve was identically prepared but the g...
In a modified LEVINE preparation, the effects of mannitol dexamethasone alone and in combination in hypoxic-ischemic brain insults were studied by electron microscopy in which dexamethasone appeared to be more effective than mannitol or its combination with mannitol in reducing ischemic swelling and...
Post-traumatic epilepsy (PTE) is the most important problem in patients who are able to return to a normal life after head injuries. Depressed fractures are commonly accepted as risk factors increasing development of PTE. In this study PTE was found in 9 % of 122 patients with depressed fractures an...
Cladosporium trichoides is a rarely seen fungal infection of the central nervous system. Since spores are found in nature, the portal entry is still obscure. It has a strong neurotropism which has been proved in experimental studies. In a modified LEVINE preparation, the effects of mannitol. In the ...
Seventeen neuraxis tuberculoma cases diagnosed and treated at Hacettepe University Medical Central between 1965 and 1988 were reviewed. Thirteen of these patients were explored surgically and all except two who died received anti-tuberculous chemotherapy in the postoperative period. In four patients...
Sixty-two patients with brain stem glioma are presented and analyzed. The most common presentation was cranial nerve palsy with cerebellar and pyramidal tract involvement. Fourty-four patients received radiation therapy. In eleven cases a histological diagnosis was made at operation. 14 cases died d...
While placing a ventricular catheter, the optimum length may be difficult to determine when intra-operative ultrasound is not available or some time has passed between the CT of diagnosis and the operation. An index based on the head circumference of the individual is described. Our method was also ...
Between April 1961 and April 1988. the senior author operated upon 299 patients for treatment of lateral cervical disc herniations and upon 36 patients for stenotic cervical spinal canal causing myelopathy employing a modified Cloward's technique in the Buffalo Metropolitan area. Autogeneous bone gr...
The early diagnosis of acoustic neurinomas and their localisation is very important. As neuro otological tests may help in this respect. neuro otological findings of twenty patients with histologically proven acoustic neurinoma were analysed retrospectively. The importance of neuro otological examin...
We present two patients without primary cardiopulmonary disease, who developed adult respiratory distress syndrome in response to lesions of the central nervous system. Clinical and laboratory investigations are described in detail and pertinent literature is reviewed.
In this study, muscle fascia removed from over the biceps femoris muscle was used as microvascular interpositional graft material in 67 rats. The faces of the cleaned fascia were rolled in order to form the luminal surface of the graft and were sutured in the from of a tube in different diameters an...
Ischemia-induced lipid peroxidation is one of the most important factors producing tissue damage in spinal cord injury. In this study a standard spinal cord injury model in rats was used and the effects of chronic administration of Selenium (3 ppm/lt water orally) before and alpha-tocopherol managem...
In this study sleep EEG recordings of 20 epileptic patients with different types of seizures have been evaluated. Sleep EEG recordings were found to be helpful in detecting epileptic discharges of the patients whose waking EEGs failed to demonstrate specific abnormalities. Also, we had the occasion ...
Forty craniocerebral trauma patients who were hospitalized for observation or surgical intervention were administered phenytoin for anticonvulsant prophylaxis. Blood and cerebrospinal fluid samples were taken on the eighth day of medication and pheytoin levels were determined with the aim of searchi...
An unusual case of cerebral arterial dolichoectasia with systemic vascu1ar abnormalities is reported. The diagnostic and clinical aspects of this entity are discussed.
The Surgical treatment of lesions of the ventral lesions of the (craniovertebral) junction is considered challenging, and until a few years ago these lesions were routinely managed by a conventional posterior approach despite the more rational and technically simpler alternative approach through the...
The effects of unilateral carotid occlusion for one hour on cerebral blood flow were investigated in normotensive and hypotensive anaesthetized rabbits. Cerebral blood flow was found to be 29.2+2.44 ml/100g/min. in the normotensive control group. 17.55+3.52 ml/100g/min. in the normotensive occlusio...
Forty-eight patients with intraorbital pathologies treated surgically and the literature are reviewed. Fifty percent of the patients (28 male and 20 female) were between one and 20 years old. 26 cases had right and 22 left exophthalmus. 23 cases had 2nd. 3rd. 5th. and 6th nerve palsies. In 15 cases...
The clinical and operative findings are reviewed in 40 patients with hemifacial spasm. Vascular cross-compression of the facial nerve adjacent to the brain stem was noted in 39 patients. In 38 the abnormality was usually by an arterial loop. In one patient. osseus contact was discovered and drilled ...
Visual disturbances are common in patients with craniopharyngioma (CP). Thirty-five patients (17 adults and 18 children) with craniopharyngioma were examined neuro-ophthalmologically. Their visual acuity, visual fields, pupilla and fundoscopic examinations were evaluated in respect to intra-operativ...
Patients with anterior pathology in the atlanto-axial region who present as neurological emergencies require urgent brain-stem decompression. Anterior decompression remains the only alternative to progressive tetraplegia and a fatal outcome. In this study, the anatomical. embryological ad surgical p...
Brainstem auditory evoked potentials (BAEP) were obtained from 13 patients with pontocerebellar angle (PCA) tumors whose pathological diagnosis was as follows: 7 acoustic neurinoma, 3 meningioma, 1 neurinoma, 1 brainstem epidermoid tumor, 1 arteriovenous malformation. Notable abnormalities were obse...
The effects of Nicardipine. a Ca+ + channel blocker, on vasoconstriction of rabbit basilar artery in two different conditions, one with a dot contacting the wall of the artery and the other without, were investigated in this study. The Initial diameters of the basilar arteries were measured in all g...
In this study we investigated the influence of laser energy on the rheological properties of blood passing through the superior sagittal sinus. Twenty-two guinea-pigs were used. In the control group craniectomies were done and only the superior sagittal sinuses were exposed. This procedure had no si...
Despite advances in diagnosis and treatment, a brain abscess caused by anaerobic micro-organisms still poses a major clinical problem. An experimental model of anaerobic brain abscess in rat was developed to determine the effects of metronidazole and dexamethasone on the abscess thus formed. Rats we...
Six meningiomas with abundant hyaline inclusions (pseudopsammoma bodies) were studied in means of a panel of conventional histochemistry. In all six cases, the inclusions were PAS-positive, diastase resistant and stained picrophilic (yellow-bright orange) with van Gieson. Negative staining was obtai...
We report the case of patient with fracture of sella turcica. The patient did not developed neurologic, vascular and endocrinologic complications.
A case with a dissecting aneurysm of the intracranial vertebral artery is presented. The patient mainly presenting with lower nerve palsies, was treated by proximal ligation of the right vertebral artery. Cumulation of experience and a better understanding of the therapeutic modality of this patholo...
A-7 year-old girl who was admitted to Dr. Sami Ulus Children's Hospital was diagnosed as cord compression at Thoracic 6-7 level. Pathological examination of the removed material revealed thyroid tissue, Aspiration material from the thyroid nodule was also benign. The mass causing cord compression wa...
Disruption of the blood brain barrier plays a significant role in the pathophysiology of subarachnoid haemorrhage. Experimental studies concerning subarachnoid haemorrhage suggested the primary role of free radicals and subsequently lipid peroxidation in the pathogenesis of vasospasm. In this experi...
In an attempt to investigate the effect of tissue plasminogen activator in the resolution of intracerebral haematoma an experimental model of intracerebral haematoma was designed in the cat. A total of 24 adult cats were studied. Intracerebral hematomas were provoked by stereotaxically injecting 0.2...
As a routine part of the evaluation of patients with pituitary tumour, pattern reversal visual evoked potentials (PRVEP) were recorded in 100 patients with computerized tomographically documented pituitary tumour. VEP tests were correlated with examinations of visual scuity. visual field and compute...
In a reversible middle cerebral artery occlusion model in rats, the possible efficacy of deferoxamine on radical level and infarct size was investigated. Deferoxamine was injected intravenously immediately after the occlusion at a doses of 100 mg/kg. It significantly lowered lipid peroxidation in t...
Sixteen patients with the primary empty sella syndrome were analyzed in regard to clinical findings, x-ray features and dynamic endocrine testing. One patient had no endocrine disturbance, three had a panhypopituitarism and one had diabetes insipidus. Hyperprolactinaemia, the most common endocrine d...
Tumour Necrosis Factor (TNF) and Interleukin-2 (IL-2) values were determined in 44 intracranial tumour patients pre-and postoperatively and compared with the values in 20 healthy persons and 14 with Behçet's disease, who were used as the control group. There was no significant difference in IL-2 va...
In this study, 21 patients between the ages of 40 and 75 (mean age 61) who were within the first 48 hours of acute ischaemic stroke were included. Isovolaemic haemodilution with Dextran 40 (rheomacrodeks) was applied, the mean Htc value was 43 +-4.8 (38-55) before treatment. After five days of haemo...
The distal internal carotid artery (DICA), middle cerebral artery (MCA) and Azygous anterior cerebral artery (AzACA) were isolated via the transorbital approach in anaesthetized rabbits. Cerebral blood flow (CBF) was measured using radiolabelled microspheres before, during and 15 minutes after one h...
In this study, a rat model of reversible focal cerebral ischaemia is standardized and the involvement of oxygen radicals in focal cerebral ischaemia and reperfusion injury is investigated. Ischaemia at the frontoparietal cortex and lateral segment of the caudate putamen was achieved in all animals...
During period of 4 months, (November 1991-February 1992) lumbar magnetic resonance (MR) examinations were performed on 418 patients, 220 were found to have lumbar disc herniation, 19 (8.63 %) of which were diagnosed as having lateral disc herniation; 17 disc herniation extending into the neural fora...
During the first three months of 1992, 80 patients were examined with magnetic resonance (MR) for various intracranial pathologies other than. We investigated prospectively the possibility of visualization of the cranial nerves with routine MR studies of the head, and the most appopriate routine MR ...
The effects of 10 global cerebral ischaemia on cortical arteriolar responses to Acetylcholine (ACh) application was examined in anaesthetized cats by closed cranial window technique. The physiological response of the pial arterioles to topical ACh (10-7 M) was endothelium- dependent vasodilation. Fo...
There are varying opinions among authors regarding the peripheral course of the afferent fibres from the extraocular muscles. Previous studies have shown that some fibres arising from the oculomotor nerve enter the ophthalmic branch of the trigeminal nerve. However their function is not identified. ...
In this study. we evaluated whether Lidocain would reduce ischaemic brain damage and restore bioelectric activity in cats subjected to permanent unilateral occlusion of the middle cerebral artery. In the Lidocain treated group there was a statistically significant improvement in the latendes and am...
Tc-99m HMPAO SPECT brain imaging was performed interictally in thirty three patients with partial seizures. Identification of areas of low perfusion was by visual inspection in all patients and additionally in 16 patients quantitative values were obtained. SPECT results were compared with the EEG an...
In this study 33 patients with Herniated Lumbar Disc (HLD) were investigated. Dermatomal Somatosensory Evoked Potential (SEP) values were compared with needle Electromyography (EMG), myelography and operative findings. According to the operative findings the patients were divided into two groups: 1)...
End-to-end anastomosis in the A. Carotis communis of rats (average diameter 0.8-1.0mm) was achieved using Nd-YAG laser. Morphological and histological findings of laser anastomosis and suture anastomosis specimens were compared by the LAMA technique. The rats were examined 1 day, 1 month and 2 month...
Caldum channel blockers have an important role in the therapy of arterial hypertension and cerebral vasospasm. two phenomena which can be associated with intracerebral haematoma and increased intracranial pressure. The purpose of this study was to investigate the effec ts of Nicardipine on intracran...
Two young male patients with increasing fequency of seizures unresponsive to anti-epileptic drugs are reported. The focal electroencephalographic findings and the lesions revealed by magnetic resonance and x-ray computed tomographic images were compatible with the clinical features of the seizures. ...
In the part II of this article highlights of the events related with the development of neurosurgery are given following settlement of the Turks in Anatolia from the 11th century to the present day. The current states of training, and international relations is reviewed and anticipated problems for ...
In this study, Nd: YAG laser induced lipid peroxidation in spinal cord and the efficacy of alfa-tocoferol on this process were investigated. The study was performed on 36 adult guinea pigs divided into three groups. The first group was the control group and only laminectomy was performed. In the sec...
Tissue markers of cellular proliferation have been recently utilized as prognostic indicators in brain tumors. Nucleolar organizer regions (NORs) are loops of deoxyribonudeic add (DNA) that transcribe to ribosomal ribonudeic acid (RNA) by RNA polymerase 1. Using a silver staining technique, nucleola...
Subdural collections are frequently seen during infancy but there is no agreement on their management . The results of 58 consecutive patients in which a subdural-peritoneal shunt was inserted for the treatment of subdural collection are presented. Subdural collection was diagnosed with computed tom...
The effect of a new long-acting calcium antagonist, Amlodipine, on experimental vasospasm was tested using arat femoral artery vasospasm model and morphometry. Twenty-four rats were divided into 3 groups. In group I, the femoral arteries were removed after cardiac perfusion. In groups 2 and 3, the r...
The history and development of neurosurgery in Anatolia is about 60 centuries old. Several trephined skulls have been found in numerous excavations in different sites. One of these skulls (800 years BC.) presents a free flap craniotomy performed with an excellent surgical technique. Among many physi...
The acethylcholinergic afferents of the neocortex from subcortical areas participate in learning and memory. Autopsy studies in cases of Alzheimer's disease have shown that most of the neurons of the nucleus basalis magnocellularis are atrophic or decreased in number. In this study, the nucleus basa...
An anatomico-topographical study of the putamen was performed on the cerebral hemisphere of 25 adults. The mean diameters of the putamen were: 44 rom anterioposterior, 41 vertical and 8.5 rom horizontal. A 30x20 rom cortical area in the insula middle third was projected precisely on the external sur...
In this study, we examined the MRI scans of eight patients with divers spinal neurosurgical problems. The evaluatins of pre-operative imaging correlated predsely with the operative findings in all of our cases. Finally, the superiority of the MRI over CT and CT-myelography and its advantages in the ...
The ischaemic phenomenon can be seen in patients with meningioma. In this study, six patients, all with cerebral infaretion and intracranial meningioma are reported. Although there are several possibilities, the mechanism of the assodation remains undear.
Cerebral arterial vasospasm is the major complication of subarachnoid haemorrhage. This process of unclear aetiology causes significant increases in the morbidity and mortality of patients with subarachnoid haemorrhage. In this study all physiopathological characteristics of subarachnoid haemorrhage...
Recent studies suggest that Nimodipine. a potent calcium-channel antagonist that causes significant cerebrovascular dilatation, may improve neurological outcome after acute experimental permanent focal cerebral ischaemia in animals when given before or immediately after occlusion of the middle cereb...
Cortical sensory potentials were evoked intraoperatively under general anaesthesia by median nerve stimulation in 13 out of 14 patients with frontoparietal tumour. In 13 patients, the central sulcus could be identified by phasereversal of cortical somatosensory evoked potential (CSEP) across the cen...
The authors study the effectiveness and complications of intraventricular morhphine therapy in the treatment of preterminal cancer pain and compare it with other central and systematic administarions of morphine. In this series of 35 patients, intraventricular morphine therapy was used when complic...
Brain abscess formation was studied experimentally in rats to determine the effect and the mechanism of hyaluronidase action in the treatment of brain abscess by applying different combinations of hyaluronidase, Myeobaeterium bovis (BCG), ascorbic acid and antibiotic sensitive to the inoculated bact...
Intratumoral local chemotherapy was applied as adjuvant treatment to 20 patient with recurrent types of anaplastic astrocytoma (AGH) and glioblastoma multiforme (GBM). A multiport catheter was implanted into the tumour and a portable ommaya reservoir was placed under the scalp over the open cranioto...
The present study aimed the biochemical relationships between human brain tumours and serum lipid peroxide, ascorbic acid and total iron levels. Tissue lipid peroxide levels in tumour tissue itself and in the surrounding tissue were also measured. Serum lipid peroxide levels were found to be signifi...
Eight operations were done on four formalinfixed cadavers to assess the technical feasibility of an approach which provide remove more than half of the clivus via extradural drilling out of the petrous apex. This approach also provides exposure of the mid and lower parts of the basilar artery, its b...
The effects of endothelin administered intravenously and intracerebroventricularly (i.c.v.) into the haematoma on arterial pressure, heart rate, other physiological parameters and intracerebroventricular haematoma were studied in the conscious rat. Control and intravenous (i.v.) endothelin-treated a...
Endothelial injury during microaterial anastomosis typically results in mural thrombus formation. However, endothelial cells produce various substances which suppress thrombus formation and maintain normal vascular wall architecture by pereventing muscular proliferation. Therefore, in order to reduc...
In this study end-to-end anastomoses were made in the left carotid arteries of 90 adult rats, in 45 of which the classical suture technique was used and in the remaining 45 the C02 laser technique. Anastomoses made with C02 laser and classical suture techniques were compared in the 1st, the 3rd, and...
The time course of angiogenesis and the status of the BBB within solid and cell suspension grafts of fetal CNS tissue following intracerebral transplantation is studied. Adult rats (n=40) received fetal forebrain tissue as either solid or cell suspension grafts to their corpus callosun bilaterally. ...
Diagnostic potential of dermatomally stimulated somatosensory evoked potentials (DSSEP) in radiculopathy due to lumbar disc herniation is investigated. Normative data were estimated by statistical analysis of the values obtained by bilateral stimulation of the L4, L5 and S1 dermatomes of 28 healthy ...
Although the main advantage of the CO2 laser lies in the possibility of a less traumatic effect on the surrounding tissue, its use in neurosurgery still necessitates a thorough and detailed evaluation of the effect on surrounding normal central nervous system (CNS) tissue. Therefore this study was u...
Vasospasm is the most important factor affecting morbidity and mortality in patients with subarachnoid haemorrhage. Many studies have been done and many factors found to affect vasospasm. The aim of this study is to clarify the factors by observing the ultrastructural effects of plasma and bilirubin...
In 52 cases with 54 aneurysms of the anterior communicating artery (ACoA), the configurations of the ACoA complex and the aneurysm as observed during surgery were defined and the ability of pre-operative angiography to show the direction of fundus projection and the presence of anomalies was investi...
We analysed the number, type and year of international publications originating from neurosurgical department; in Turkey between the years 1980 and 1990 using online databases in order to be able to compare the figures with the performance of other European neurosurgical societies. We then analysed ...
Three-dimensional Computed Tomography (3-D CT) was performed in 21 patients for characterization of 29 aneurysms of various sizes and locations, and determining the relationship between the vascular and bony structures. These findings are compared with results ofaxial CT. digital subtraction angiogr...
The impact of stereotactic techniques on the management of mass lesions of the third ventricular region is reviewed in a consecutive series of 82 patients treated over three years using primarily stereotactic techniques. The lesions were in the ventricular cavity in 8 cases, thalamic in 26 cases, se...
142 patients who were operated on Department of Neurosurgery during a 21 month period without removal of hair were examined prospectively with regard to the effects of hair on wound sites, Craniotomy was carried out on 124 patients and shunt procedures on 18 patients. No infection was detected in ou...
Carpal tunnel cross sectional area and carpal tunnel area/wrist area ratios of 23 subjects including 8 bilateral, 9 unilateral carpal tunnel syndrome patients and 6 control patients were examined. Carpal tunnel areas of the patients were found to be 1.7–1.6 cm2 and the control group 1.9–...
Among 98 surgically-treated intracranial meningiomas, 12 (% 12.2) patients with atypical and anaplastic meningiomas are reviewed. All were operated between 1983-1994. Out of 12 patients, 7 (58%) had malignant meningioma and 5 (42%) showed atypical features histopathologically. Tumours in eight patie...
A rectangular tissue of (10X5X5cm) 250 cc expander was applied to 8 patients of ages ranging between 0 and 6 months with meningomyelocele of diameteres of 10 cm or more. The expanded myocutaenous flap is an effective method for giant meningomyelocele treatment because of tension-free suturing, suita...
Five minutes before spinal cord injury, an 0.02 mg/kg dose of nimedipine was started via a femoral catheter and continued for 96 hours after injury. Pre-and post-injury and post-infusion mean arterial blood pressure (MABP) recordings were obtained. The levels of injured cord sodium-potassium-adenosi...
A series of 57 patients with acute extradural haematoma (EDH) treated conservatively is reported. The main parameters for conservative management were close clinical supervision. repeated computerized tomography (CT) follow-up and asymptomatic or minimal neurological deficit. The criteria for the de...
Fetal substantia nigra grafts (obtained from l5-17-day old-foetuses) were transplanted into cavities overlying the caudate nucleus of rats following destruction of the nigrostriatal dopaminergic pathways by intraventricular injection of the 6-Hydroxydopamine (6-0HDA). We investigated the effect of f...
The function of experimentally induced hypertension in the formation of saccular aneurysms in rats was the subject of this study. In four group of rats, the left common carotid artery and the posterior branch of both renal arteries was ligated in the first and third group, and only left common carot...
This study was carried out to analyze, biochemically and histologically, the collagen and elastin components of human intervertebral disc material obtained at operations performed in cases of lumbar intervertebral disc herniation, and to compare these data with those obtained on "ligamentum flavum" ...
Management of spontaneous intracerebral haemorrhage is one of those fields where the discussion is still on. Questions of to operate or not to operate, timing and type of surgery does not have clear answers yet. Open craniotomy, burr-hole draining with or without thrombolytic agent administration ar...
In this experimental study the neuroprotective effect of XO inhibitor allopurinol on focal cerebral ischaemia created by permanent middle cerebral artery (MCAO) occlusion has been investigated. In the study made on 43 white rats, the size of the cerebral tissue injury caused by MCAO after allopurino...
The author describes two new microsurgical approaches to the insular cortex and putamen. With this new method we can revascularize the intraparenchymal territory of the lenticulostriate arteries.
Cystic meningiomas are rare forms of meningiomas which are generally known as solid and benign tumours. Preoperative misdiagnosis of such a tumour will affect the surgical management and difficulties in histopathological diagnosis will affect the prognosis. Flow cytometric studies have more advant...
In diagnostic neuropathology, the histological distinctions between normal choroid plexus, typical and atypical choroid plexus papilloma and choroid plexus carcinoma may cause difficulties. Immunohistochemistry was applied for proliferating cell nuclear antigen on 7 samples of normal choroid plexus,...
An experimental saccular aneurysm model was made at the bifurcation of the common carotid artery in rats. Thirty albino rats were used. We histologically examined induced aneurysms in common carotid bifurcation of rats in the first, seventh and fourteenth day postoperatively and discussed the result...
Traumatic extradural haematomas (EDHs) comprise 1 to 3% of all head trauma admissions. The availability of computed tomography has increased the diagnosis of extradural haematomas. From January 1,1986 to December 31, 1994, 4,553 patients with head injury were admitted to the Department of Neurosurge...
A series of 41 patients with posttraumatic unilateral diffuse cerebral swelling was studied in order to assess clinical, radiological and operative findings, to determine the incidence and outcome, and to seek features that might identify patients at high risk of unilateral cerebral swelling and a p...
Eighteen patients with primary non-Hodgkin brain lymphomas without a history of any acquired or congenital immunodeficiency syndrome or organ trasplantation were reviewed retrospectively. Cases were selected from 2633 primary intracranial malignancies encountered between the years of 1987 and 1995. ...
Because of its long intracranial course, the abducens nerve can easily be injured due to the internal carotid artery aneurysm, Gradenigo's syndrome or surgical trauma. Therefore the intracranial course of this nerve is important. In this study, we used 42 dry skul1s, 8 fixed and 4 fresh cadavres. We...
Twelve cases of primary intracranial germ- cell tumors including eleven germinomas and one yolk sac tumor out of 2633 primary intracranial tumors are studied. They were evaluated according to their clinical data based on the medical records including the patients age and sex, location of the tumor, ...
The result of surgical therapy of sellar region neoplasms in 107 patients treated between 1986-1995 is reviewed. In this series there were 89 pituitary adenomas, 8 meningiomas, 9 craniopharyngiomas, and one mucocele. Transcranial, transphenoidal, and combined transcranial-transsphenoidal approaches ...
Lysophosphatidic acid is the simplest phospholipid known. It is produced by platelets, endothelial cells, leukocytes, some cancer cells, astrocytes, and injured fibroblasts. Lysophosphatidic acid is thought to play a role in platelet aggregation and fibrosis. Since in radiation injury, platelet aggr...
We investigated the value of transcranial Doppler (TCD) examinations of intracranial arteries as a diagnostic test for the confirmation of brain death. Twenty nine patients with intracranial hypertension who subsequently developed brain death according to clinical criteria were evaluated by TCD ultr...
The surgical management of the pathologies at the cervicothoracic junction is hindered by various structures. Standart approaches to the cervical or thoracic spine provide inadequate exposure. We used a method which involves elevation of the medial comer of the manubrium,the stemodavicular joint and...
This study includes 40 consecutive cases of penetrating and non-penetrating head injury with an admission Glasgow Coma Scale score of 8 or less treated in our department between 1993 and 1996. The patients were divided into two groups. Group 1 cases were treated without ICP monitoring and analysed r...
Anterior intercorporal fixation, different from the currently used techniques, was tested as a new stabilization system first in human cadaver and then was applied to a patient. Our device is a two directional screw system applied with anterolateral approach to the superior and inferior corpus end p...
An evaluation of the advantages and limitations of both the anterior and posterior approaches was made in isolated cadaveric specimens of the cervical spine. During anterior decompressions, the Cloward drill with a diameter of 14 mm was used, and the vertebral borders of the interspace was dissected...
Our previous study showed that epileptic seizures induced by DL-methionine DL-sulfoximine administration to rats could be prevented and Tl relaxation time shortened as a sign of avoiding the brain edema fluid by prior administration of an antioxidant vitamin E. This present study also consisted of t...
In this article we analyzed 210 children who were underwent shunt operation between the years 1988-1995. The causes of shunt failure in this group of patients and the spreading of these complications over time are evaluated. Shunt revisions were required in 80 of 210 patients and a total of 178 revi...
A retrospective study was conducted on 48 consecutive patients with hydrosyringomyelia. Forty seven of them had Chiari I malformation and one had stenosis of foramen magnum. The most common symptom was numbness in arms and the most common physical finding was dissociated sensory loss. The patients w...
N -methyl- D-aspartate (NMDA) receptor-mediated events have been implicated in the pathophysiology of spinal cord injury. This study examines the effects of two NMDA receptor antagonists, CPPene (3-(2-carboxypiperazin-4-yl)1-propenyl-l-phosphonic acid) and MK-801 (dizocilpine maleate) after 50 gm-cm...
We examined the frequency and clinical relevance of intracranial artery stenoses in patients with central nervous system (CNS) infections in whom the occurrence of stroke has angiographically been reported to be associated with stenoses or occlusions of the cerebral arteries. Thirty-eight patients w...
A statistical comparison is made between neurological conditions and areas of lower lumbar spinal structures, as ascertained by CT-myelography, in patients with lumbar complaints. CT-myelography was taken of 38 patients with low back pain and/or radicular pain complaints, most of whom were suffering...
Stereotaxy-guided surgery offers significant advantages in the treatment of lesions that cannot be localised reliably because of their smaIl size and/or lack of evident landmarks. A stereotactical1y-guided craniotomy and microsurgical resection technique was described for excision of a cavernous hem...
For extra-foraminal localization, the surgical technique of lumbar far lateral disc herniations are distinct from those situated medial to the facet joint. In this study the extra-foraminal space was approached by a posterior route by means of median or paramedian incisions and a posteralateral rout...
Anatomy of the ophthalmic nerve should be well known in order to perform safe surgical intervention to the Parkinson's triangle, the orbit, and for the causes leading to the superior orbital fissure syndrome. Thirty ophthalmic nerves rising from the trigeminal ganglion and course in the cavernous si...
The factors for recommending postoperative VP shunt insertion in twenty-eight pediatric patients, previously operated on for posterior fossa tumor, without V-P shunt preoperatively are investigated in this study. Age, sex, the preoperative duration for high intra-cranial pressure (lCP) signs, the pr...
The factors for recommending postoperative VP shunt insertion in twenty-eight pediatric patients, previously operated on for posterior fossa tumor, without V-P shunt preoperatively are investigated in this study. Age, sex, the preoperative duration for high intra-cranial pressure (lCP) signs, the pr...
Computerized tomography is highly reliable in the diagnosis of subarachnoid haemorrhage, especially during the first week. When contrast material is administered, it is also possible to demonstrate an aneurysm. In this retrospective study, we looked for any relationship between hyperdense fillings o...
This paper is a retrospective analysis of 288 craniocerebral gunshot wounds treated over a 5-year period. Twenty-one in-hospital deaths occurred, most as a direct result of brain injury. The level of central nervous system (CNS) damage was the most valuable prognostic factor in these cases. The pres...
Surgical procedures designed to decompress and stabilize unstable trauma-related thoracolumbar fractures are primarily anterior or posterior operative approaches combined with anterior or posterior instrumentation. Our goal is to identify patients that are likely to benefit from either fixation syst...
Most current anterior stabilization systems involve the placement of two screws in each vertebra, and connecting these using a rod or plate. In this study, we present findings from patients who were treated with single vertebral body screw (SVBS) - rod or - plate systems. Our aim was to determine wh...
The purpose of this study was to determine the value of venous magnetic resonance angiography (Venous MRA) as the sole procedure for diagnosing and following up dural sinus thrombosis (DST). We also reviewed the etiology, clinical features, and therapeutic aspects of this neurological emergency. Ten...
When commenting on morphological findings in cerebral vasoconstriction studies, caution is required in two areas, namely the mechanical stresses involved in experimental manipulations, and preparation techniques. Since simultaneous radiological studies are sometimes compared with the results of morp...
The effects of head injury on lipid peroxidation and the antioxidant defense system were investigated in aged and young rats. The animals were divided into 4 groups of 10. A mild head trauma was applied to 10 young rats (3 months of age) in group II and to 10 aged rats (24 months of age) in group IV...
This study reveals the effects of diazepam on the development of neural tube defects in the chick based on light microscopy and histopathological study. Thirty fertile Hubbard Broil eggs were divided into two equal groups. Group 1 embryos (n:15) at stage 8 (the four-somite stage) of development were...
Beta-endorphin (B-EP) is a 31 amino acid polypeptide secreted by the pituitary, brain, and various other tissues. It has potent opiate-like activity, can produce analgesia, and may play a physiological role in adapting the immune system to stress by affecting lymphocyte and complement binding activi...
Eighty seven Sprague-Dawley rats were used to study the anatomy of the horizontal segment of middle cerebral artery (MCA) and infarction after occlusion of this vessel. We investigated the size and location of the lesion produced, and found a correlation between infarct size and neurological deficit...
The purpose of this study was to investigate the preventive effect of Ticlopidine on thrombus formation after surgical arterial injury. The model of microsurgical carotid endarterectomy was performed on the common carotid arteries in rats. Twenty rats were equally divided into two groups: a control ...
A comparison of the effects of epidural morphine and epidural morphine + bupivacaine on postoperative pain following lumbar laminectomy and discectomy. Thirty American Society of Anesthesiolgists (ASA) I patients undergoing lumbar laminectomy and discectomy were randomly assigned to two groups (n = ...
Most adult primary brain tumors are gliomas. These tumors are progressive, tend to recur after treatment, and are usually fatal. Some studies on the behavior of astrocytomas with similar histological features have looked at over expression of p53 and c-erbB-2 and the immunoreactivity associated with...
Twenty-four adult Wistar rats weighting 220-290 g were anesthetized with an intraperitoneal injection of 30 mg/kg sodium thiopental and a tracheostomy was performed. Following diffuse impact-acceleration brain injury (BI), animals were paralyzed and mechanically ventilated with %30 O2 in N2O. The ra...
Enthusiastic reports about percutaneous intradiscal laser nucleotomy have been encouraging to neurosurgeons treating patients with intervertebral disc herniation. Since high energy is transmitted to deep tissue and the procedure is not able to be visualized unless done endoscopically, we designed th...
The extreme lateral transcondylar approach (ELA) is used to access lesions that are located or extend superior to the middle elivus, inferior to the upper cervical spine, and lateral to the foramina jugulare. Different combinations of drilling of several bone structures, including the occipital cond...
Included in this study were 56 children with primary extracranial Neuroblastomas (NB) (n=44) and Ganglioneuroblastomas (GNB) (n=12) who were admitted and treated at two institutions between January 1982 and March 1997. Thirteen of the 56 patients had epidural spinal canal invasion and spinal cord co...
Fractures of the basis cranii are usually the result of extension of a vault fracture. The most important complications associated with these fractures are cerebrospinal fluid (CSF) fistula, related infection, and pneumocephalus with fistula. CSF fistula involves the leakage of fluid from the subara...
AIM: Reconstruction technique advances have created renewed enthusiasm for the expanded endonasal approach (EEA). However, as with any new technique, early experiences inevitably lead to more selective use of these techniques. We reviewed our experience of the expanded endonasal endoscopic approac...
AIM: Total surgical resection of pituitary macroadenomas is difficult due to the location of the adenoma and the propensity to invade surrounding tissues. The purpose of this study was to evaluate the risk factors for invasive and aggressive pituitary macroadenomas using radiological, hormonal, cl...
AIM: To analyse the effect of MMP-3 (Matrix Metalloproteinase Enzyme-3)-one of the extracellular matrix proteins- on the prognosis and biological behaviour of meningiomas. MATERIAL and METHODS: 79 cases of meningioma that were operated in our clinic between 2005 and 2010 were retrospectively anal...
AIM: Hypervascular intracranial tumors may cause serious bleeding in surgery. Though pre-operative endovascular embolization of tumor is a widely accepted method, sometimes despite embolization, an effective and safer intraoperative hemostatic technique is needed to prevent or at least decrease th...
AIM: Tumors of various organs that metastasize to bone do not neglect calvarium as a target. The aim of this study was to characterize the calvarial tumors. MATERIAL and METHODS: We retrospectively reviewed 45 consecutive patients operated for calvarial masses from January 2002 till May 2012 at o...
AIM: To share the results of conventional surgery in rhinorrhea and the contribution of computerized tomography (CT) cisternography to determination of the site of cerebrospinal fluid (CSF) leak. MATERIAL and METHODS: Twelve cases treated for spontaneous rhinorrhea were included in this study. All...
AIM: Decompressive hemicraniectomy for a malignant middle cerebral artery infarct can be a life-saving surgical treatment. We aimed to investigate the surgical treatment results in cases that underwent decompressive hemicraniectomy for a malignant middle cerebral artery infarct in this study. MAT...
AIM: Giant arteriovenous malformations (i.e., those greater than 6 cm maximum diameter or volume > 33 cc) are difficult to treat and often carry higher treatment morbidity and mortality rates. In our study, we reviewed the angiographic results and clinical outcomes for 11 patients with giant arter...
AIM: To compare the beneficial effects of cisternal blood clot evacuation with or without microsurgical fenestration of the lamina terminalis (LT) on symptomatic vasospasm during the course of aneurysmal subarachnoid hemorrhage. MATERIAL and METHODS: This was a clinical, retrospective study that i...
AIM: Glasgow Coma Scale (GCS) is the most applied tool for classifying intensity of coma and predicting patient outcomes with traumatic brain injuries. The present study was conducted with the aim of comparing two criteria of Full Outline of UnResponsiveness (FOUR) scale and GCS in predicting prog...
AIM: Traumatic subdural effusion (TSE) occurs following traumatic brain injury and may be treated by either conservative methods or surgical procedure commonly according to the patients’ clinical information. We aimed to compare the effective rate of effusion removal and the standardized mor...
AIM: Traumatic brain injury is one of the leading causes of mortality and morbidity worldwide. The role of prophylactic anti-epileptic drugs has been established. Phenytoin used traditionally for this purpose carries a burden of adverse reactions and cumbersome need of monitoring and maintaining l...
AIM: Tyrosine kinase receptor-B (TrkB), a high-affinity receptor for brain-derived neurotrophic factor (BDNF), functions via specific binding with the BDNF. Although studies have shown that BDNF promotes the expression of glutamate transporter-1 (GLT-1) in the glial cells during neurodegeneration,...
AIM: To investigate the indications and clinical value of the surgical therapy of neurocysticercosis (NCC). MATERIAL and METHODS: We retrospectively reviewed all 10 patients with NCC treated surgically from January 2009 to January 2014 in our institute. The NCC types included parenchymal cysticerc...
AIM: Dynamic plates have been popularized to promote cervical spine fusion. There are no studies comparing the effectiveness and complications between traditional static plates and new dynamic plates (Vectra-T, Synthes, Switzerland). MATERIAL and METHODS: From June 2009 to October 2012, 70 patient...
AIM: To investigate whether C1-occipital condyle complex (CC complex) screws can be safely and rapidly placed without guidance in basilar invagination patients with atlas assimilation. MATERIAL and METHODS: The occipital-cervical (OC) junction was fixed posteriorly in 8 basilar invagination patien...
AIM: Two different ventilation protocols during general anesthesia have been compared regarding their effects on amount of epidural bleeding during lumbar microdiscectomy in the prone position. Previous studies have not not revealed a relationship between ventilation mode and epidural bleeding in ...
AIM: To visualize cranial nerves (CNs) using diffusion tensor imaging (DTI) with special parameters. This study also involved the evaluation of preoperative estimates and intraoperative confirmation of the relationship between nerves and tumor by verifying the accuracy of visualization. MATERIAL ...
AIM: Expression of 14-3-3zeta is upregulated in many cancer types and plays an important role in tumorigenesis. Our previous studies have shown that 14-3-3zeta has a positive expression and is associated with a poor prognosis in patients with glioblastoma. In this study, we investigated whether 14...
AIM: To investigate the clinical features, prognostic factors and survival times of cervical cancer patients with brain metastasis. MATERIAL and METHODS: We retrospectively reviewed the medical records of 820 patients with cervical cancer. Data were analyzed using SPSS version 12.0 statistical sof...
AIM: To evaluate the endocrinological and ophthalmological results of the tuberculum sellae meningioma surgery. MATRRIAL and METHODS: A total of 18 patients diagnosed with tuberculum sellae meningioma received surgical treatment at Neurosurgery Clinic at Military Medical Institute in Warsaw from J...
AIM: To prospectively study neurocognitive performance following carotid endarterectomy (CEA) in various follow-up periods, taking into account the potential confounding factors. MATERIAL and METHODS: Thirty-six patients with carotid artery stenosis received CEA (group A). Thirty-one patients unde...
AIM: Despite technical and medical advances, aneurysmal subarachnoid hemorrhages (SAH) continue to be a challenging pathology, associated with high rates of morbidity and mortality. In this regard, a definition is required of the various prognostic indicators of an SAH. The aim of the present retr...
AIM: Severe neurogenic pulmonary edema (NPE) can occur in a variety of brain insults, including subarachnoid hemorrhage (SAH), and severe case of NPE can cause devastating consequences. But the literature on the treatment strategy about aneurysmal SAH with NPE is very scant. We present that SAH pa...
AIM: Increasing evidence suggests that reactive oxygen species damage the blood-brain barrier and increase brain edema after intracerebral hemorrhage (ICH). Recently, strong clinical and experimental evidence has shown that hydrogen has potent protective cellular effects in various diseases. Howev...
AIM: Oxidation products following subarachnoid hemorrhage (SAH) are among the causative substances of cerebral vasospasm and poor outcome. Ozone (O3) is a gas that contains three atoms of oxygen with a cyclic structure. It has been suggested that application of low-dose ozone has an antioxidant ef...
AIM: A potential advantage of the use of the plastic clips in neurosurgery is their property of causing fewer artifacts than titanium clips as assessed by computed tomography and magnetic resonance scans. The biocompatibility of plastic clips was demonstrated in the peritoneal cavity, but their be...
AIM: Intraoperative use of the endoscope is a hot topic in neurosurgery and it gives broader visualization of critical and hardlyreached areas. Endoscope-assisted surgical approach to chronic subdural haematoma (SDH) is a minimally invasive technique and may give an expansion to the regular method...
AIM: To determine whether the serum level of glial fibrillary acidic protein (GFAP), an important indicator of neuron damage, correlates with the extent of tissue damage in the rat with induced head trauma and to obtain data in order to avoid unnecessary cranial computed tomography analyses. MATE...
AIM: A retrospective analysis of 126 consecutive computed tomography (CT)-guided, frame-based stereotactic procedures in 121 patients is presented to evaluate the diagnostic yield, accuracy, complications, management of non-diagnostic cases and followup. MATERIAL and METHODS: The medical records o...
AIM: High frequency stimulation of the subthalamic nucleus (STN) is nowadays a widely performed surgery for patients with Parkinson’s disease (PD). The field has witnessed a shift from indirect targeting to direct targeting. The question arises whether this change has influenced the final el...
AIM: Sacrococcygeal region giant tumors are a challenge for neurosurgeons. The purpose of this paper was to retrospectively analyze the clinical records of sacrococcygeal region giant tumors treated surgically by balloon occlusion of the abdominal aorta. MaterIal and Methods: A total of 130 patien...
AIM: Some psychometric properties may predict the development of failed back surgery syndrome (FBSS). The aim of this study was to determine the pain, disability, and depression severity in patients diagnosed with FBSS, and to determine the temperament and character subgroups in comparison with co...
AIM: To show causes of dural tear in isolated lumbar disc surgery, and to investigate the risk factors. MaterIal and Methods: We retrospectively reviewed 1159 cases (532 females and 627 males) involving patients who underwent a surgery for the treatment of lumbar disc herniation between 2006 and 2...
AIm: Spinal cord injury (SCI) is a serious condition of the central nervous system and it affects the quality of life and even hampers the day-to-day activity of the patient. In the current study, we investigated the efficacy of intrathecal administration of flavopiridol in an experimental animal ...
AIM: The aim of this study was to compare the preventive effects of Etanercept, Etomidate, Erythropoietin and their combination in experimentally induced spinal cord trauma by clinical, histopathological, electrophysiological parameters and biochemical examination. MaterIal and Methods: 85 health...
AIM: To determine local tissue electrical resistance differences generated during a screw pass from the pedicle to another tissue rather than determining all individual electrical tissue resistance values. MaterIal and Methods: We attempted to measure electrical resistance values of regional tissu...
AIM: To analyze the therapeutic effects of long-term alpha lipoic acid (A-LA) and vitamin B12 use via histomorphometric methods and electron microscopy in the transected sciatic nerves of rats. MATERIAL and METHODS: Forty rats were randomized into five groups (n=8/group). In group I, 1 cm segment ...
AIM: This study aimed to assess the efficacy of endoscopic endonasal surgery, conducted by a team of neurosurgeons and otolaryngologists. MATERIAL and METHODS: We studied 40 patients who were undergoing surgery for primary non-functional pituitary adenomas with Knosp grades 1 to 3, at Keio Univer...
AIM: The aim of this study was to assess the relationships among immunohistochemical staining patterns and prognostic factors in patients with non-functioning pituitary adenoma (NFPA). MATERIAL and METHODS: The study included 103 patients who had undergone pituitary surgery for NFPAs. The prognost...
AIM: In this study, factors affecting survival, local failure, distant brain failure, whole brain failure and whole-brain radiation therapy (WBRT) free survival according to histological subtypes were investigated in patients with brain metastases from non-small cell lung cancer (NSCLC). MATERIAL...
AIM: Traditional craniotomies for treatment of the aneurysms at the A3 segment of anterior cerebral artery (A3As), such as frontal approach and interhemispheric approach, require pre-hairline incision and relatively long incision, extensive bone flap, inevitable supraorbital nerve injury, opening ...
AIM: A relationship was shown in this study between the optic canal and the ophthalmic artery by cadaver study. It is intended that the anatomical and histological values which we obtained can be used as a guide in surgery MATERIAL and METHODS: A surgical anatomical evaluation was made of twenty o...
AIM: The aim of this study was to assess the surgical outcome and the prognostic importance of clinical and radiological data of patients operated emergently for an extraaxial hematoma causing brain herniation. MATERIAL and METHODS: This retrospective study comprised 108 adult patients who were op...
AIM: The purpose of this study was to investigate whether the intensity of trauma influences the pathogenesis of traumatic chronic subdural hematoma (CSDH). MATERIAL and METHODS: Thirty-one patients treated surgically for traumatic CSDH were divided into high-impact and lowimpact groups according...
AIM: This study aims to compare clinical outcomes in patients with chronic subdural hematoma (CSDH) following twist drill craniostomy (TDC) or burr hole craniostomy (BHC). MATERIAL and METHODS: A prospective cohort study was conducted in the patients who suffered from symptomatic CSDH and receive...
AIM: Ethanol causes oxidative degradation of the mitochondrial genome in the brain. This effect could contribute to the development of brain injury in some alcoholic patients. We investigated the protective effect of caffeic acid phenyl esther (CAPE) and intralipid (IL) on oxidative stress and neu...
AIM: To compare cervical hemilaminectomy with cervical laminoplasty to determine the prognostic significance of both methods in cervical spondylotic myelopathy (CSM). This study is first in the literature to compare the hemilaminectomy and laminoplasty procedures MATERIAL and METHODS: A total of ...
AIM: Posterior epidural migration of a sequestered lumbar intervertebral disc fragment (PEMSLIDF) is an extremely rare condition published so far only as case reports or small case series (ranging between 2 to 8 cases). Diagnosing this condition is often challenging and the diagnosis is usually ma...
AIM: Despite different surgical treatment protocols at different centers for spondylodiscitis due to lumbar surgery, there is no consensus on its surgical indications. In this study, we aimed to clarify the steps to be followed in the management and treatment of postoperative spondylodiscitis. MA...
AIM: To evaluate the validity and reliability of Turkish version of Extended Aberdeen Spine Pain Scale (EASP). MATERIAL and METHODS: After cultural adaptation, the questionnaire was administered to 120 patients. Test-retest reliability, internal consistency, construct and criterion validity and re...
AIM: To analyze the relationship between the severity of pain and sleep disorder using wrist actigraphy in patients with cervical disc herniation (CDH). MATERIAL and METHODS: Fifty patients with the diagnosis of CDH underwent subjective tests and actigraphic analysis in preoperative period, and a...
AIM: Lumbar epidural fibrosis is increasingly recognized as a cause of persistent back pain. The aim of this study was to examine the effect Ankaferd Blood Stopper on epidural fibrosis following laminectomy in rat models. MATERIAL and METHODS: Twenty Sprague-Dawley male rats were randomly allocate...
AIM: One of the most significant reasons for persistent low back pain experienced after spinal surgery is epidural fibrosis seen after laminectomy procedures. This study shows the effects of Ranibizumab on spinal epidural fibrosis in the laminectomy area by blocking the effect of vascular endothel...
AIM: In the relevant literature, there is no experimental study that investigated the axon protective effects of syringic acid- a polyphenol compound- with an anti-oxidant capacity on ischemia/reperfusion injury. MATERIAL and METHODS: The rats were randomly divided into four groups: Control group ...
AIM: To evaluate the safety and effectiveness of computed tomography-guided high-level percutaneous selective cervical cordotomy (CT-guided HPSCC). MATERIAL and METHODS: CT-guided percutaneous procedures were performed in fifty-nine patients between the years 2004- 2013 for cancer pain. Forty-eig...
AIM: Barrel stave osteotomy is a widely used procedure in neurosurgery for the majority of craniosynostosis patients. Both in the intraoperative and postoperative periods, there is inevitable leakage type bleeding from the bones undergoing osteotomy. A number of studies have been performed in orde...
AIM: National and international society meetings are suitable mediums at which diverse research topics from basic, clinical and translational sciences can be presented to an audience of peers. In this study, our purpose was to evaluate publication rates of presentations in the last recent four yea...
AIM: Malignant glioma is the most common primary brain tumor in adults and the survival rate has remained very low. Thus, determining the optimal treatment for patients can be challenging. To compare the efficacy of common therapies, we performed network meta-analysis to estimate the efficacy and ...
AIM: Major complications of microscopic transnasal hypophyseal surgery (MTHS), such as cerebrospinal fluid rhinorrhea, carotid injury, and optic nerve injury, are very rare. However, late rhinological complications can be ignored because they are a minor cause of morbidity compared with major comp...
AIM: In the present study, we evaluated the association of the Glasgow Coma Scale (GCS) score and amount of blood loss with mortality in patients presenting with traumatic acute subdural hematoma (ASDH). MATERIAL and METHODS:This retrospective study was performed on 99 patients who were operated f...
AIM: We aimed to investigate the importance of early diagnosis and proper management of paradoxical herniation based on the data of 13 patients who had 14 occurrences of paradoxical herniation. MATERIAL and METHODS: The characteristics and the effectiveness of treatments of 13 patients with parado...
AIM: Failed cranioplasty attempts may lead to numerous complications in a broad spectrum including cosmetic problems, infection, neurological deterioration and even death. Selection of the most appropriate surgical technique for second and further surgical attempts for these patients still remains...
AIM: Pseudotumor cerebri (PTC) is a condition characterized by symptoms and signs of increased intracranial pressure (ICP) with no intracranial mass or hydrocephalus, and with normal cerebrospinal fluid (CSF) composition. A variant of PTC known as "Normal Pressure Pseudotumor Cerebri" has the same...
AIM: Many approaches for optic nerve decompression have their own advantages and disadvantages. The aim of this study was to perform endoscopic decompression of optic nerve through the supraorbital keyhole and evaluate its feasibility. MATERIAL and METHODS: Ten adult cadaveric heads were studied u...
AIM: Spinal schwannomas (SS) represent the most common intradural extramedullary lesions, accounting for approximately 24% of all nerve sheath tumors in adults. Schwannomas have infrequent, but existent possibility of malignancy. In this study, long-term outcomes of 49 consecutive SS have been pre...
AIM: Tethered cord syndrome (TCS) is rarely diagnosed in adults. It is a complex clinicopathological entity that remains poorly understood. In this study, clinical outcomes of 23 consecutive congenital TCSs diagnosed in adults have been evaluated to establish a standard approach to treat congenita...
AIM: Successfully established registry systems, rather than personal efforts to collect data, are required to record, analyze, compare and secure patient related data. Unfortunately, our country does not have such patient registry systems for spinal pathologies and surgeries at this time. In order...
AIM: The aim of the study was to develop new equipment for the assessment of the flexibility of the spine with different forces. This new system should provide a different perspective to adolescent idiopathic scoliosis (AIS) for the selection of fusion levels and surgical success. MATERIAL and ME...
AIM: Arthroplasty maintains the biomechanical features of a healthy disc, decreases the adjacent segment disease rate, and decreases the accelerated degeneration rate of the neighboring discs in traditional fusion procedures. However, there are only a few reports on adjacent disc pressure (DP) and...
AIM: Spinal cord injury (SCI) is a devastating condition of the central nervous system. There is no proven therapeutic agent for the treatment of this complex disorder. Asiatic acid (AA) has been used as an anti-inflammatory and anti-oxidant agent in Eastern countries for many years. The aim of th...
AIM: The aim of this experimental study was to investigate whether spinal epidural 4% glucose polymer solution is effective in the prevention of postoperative fibrosis. MATERIAL and METHODS: Twenty eight adult Wistar albino rats were randomly divided into two equal groups, including treatment and...
AIM: To study the clinical features, imaging findings, treatment methods and results, and prognosis of supratentorial parenchymal ependymomas in children. MATERIAL and METHODS: Fourteen children with supratentorial parenchymal ependymomas were treated by the senior author at Tiantan Hospital betw...
AIM: Pediatric glioblastoma (GBM) is still a topic obscurity. The aim of this study was to explore clinical, radiological and pathological features, and prognostic factors affecting the outcomes. MATERIAL and METHODS: We retrospectively reviewed our database for prognostic factors for 42 consecuti...
AIM: The surgical management of injured digital nerves is a common part of hand trauma surgery. Despite improvements in the surgical techniques and suture material, the final outcomes of peripheral nerve repair can still be disappointing. This study investigates the outcomes following the surgical...
AIM: The aim of this study was to assess the results of unilateral subthalamic nucleus (STN) stimulation for the treatment of Parkinson"s disease (PD) with marked asymmetry of parkinsonian motor symptoms and early motor complications. MATERIAL and METHODS: The clinical series consisted of 32 conse...
AIM: Cerebral arteriovenous malformations (AVM) are pathological connections between arteries and veins without capillaries. Stereotactic radiosurgery (RS) is a proven and accepted treatment method for cerebral AVMs. Our objective was to analyze the factors influencing the clinical outcome in pati...
AIM: The atrium (trigone) is the most common site for intraventricular lesions. The parieto-occipital interhemispheric precuneal approach (POIPA) is one of the particular ways to reach these lesions. The aim of this study was to draw specific attention to the surgical difficulties of these lesions...
AIM: We investigated the clinical presentation and management issues of unilateral vestibular schwannomas in childhood without evidence of neurofibromatosis. MATERIAL AND METHODS: Ten pediatric patients with unilateral vestibular schwannoma and no evidence of neurofibromatosis were treated by the...
AIM: Virtual endoscopy (VE) is the navigation of a 3D model reconstructed from radiological image data. The aim of this paper is to evaluate the role and accuracy of the virtual endoscopy realized using commercially available software, OsiriX, as a method of planning of surgical interventions. MA...
AIM: To assess the association between inflammatory response and early brain injury (EBI), and the association between inflammatory response and the following pneumonia after aneurysmal subarachnoid hemorrhage (SAH). MATERIAL and METHODS: Eighty-nine patients with spontaneous SAH and 12 patients...
AIM: Factors affecting the development of postoperative hydrocephalus patients who underwent surgery after aneurysmal subarachnoid hemorrhage were retrospectively assessed. MATERIAL and METHODS: 201 cases, who underwent aneurysm surgery in our clinic after subarachnoid hemorrhage between 2008 and...
AIM: Flow diverter (FD) stents have been used in the treatment of unruptured intracranial aneurysms. There are a few studies that report the use of these devices in ruptured blister-like aneurysms. We present 5 consecutive patients, who had ruptured intracranial wide necked or side branch close to...
AIM: Hypertension is a primary risk factor for intracerebral hemorrhage (ICH) and is thought to be responsible for about 55% of all ICH cases. Thus, the primary goal of the study was to examine whether the status of vascular rheological factors upon admission to the hospital was associated with hy...
AIM: Cerebral vasospasm is the primary cause of morbidity and mortality after subarachnoid hemorrhage (SAH). Hydrogen Sulfide (H2S), a gaseous neurotransmitter, is produced in many tissues including the central nervous system (CNS). The vasodilatatory effect of H2S has been shown in the CNS; howev...
AIM: To investigate the effect of minimally invasive approaches on the outcome of bilateral chronic subdural hematoma. MATERIAL and METHODS: A retrospective analysis was performed in 74 hospitalized bilateral chronic subdural hematoma patients from January 2010 to January 2013 in Northern Jiangsu ...
AIM: To investigate the imaging features of neurocysticercosis and to provide valuable information about the diagnosis and treatment for clinicians. MATERIAL and METHODS: The data of 71 consecutive cases of neurocysticercosis, diagnosed by computed tomography (CT) and magnetic resonance imaging (...
AIM: Computed tomography (CT)-guided stereotactic brain biopsy has been performed in our clinic since March 1998. In this prospective study, we examined the patient data undergoing stereotactic biopsy and the results of biopsies in 500 consecutive patients. MATERIAL and METHODS: Between the dates...
AIM: Paragangliomas of the spine are rare tumors. Clinical presentations and courses of spinal paragangliomas are varied, and there are no standard principles of treatment to date. The purpose of this study was to explore the diagnosis, treatment and prognosis of spinal paragangliomas. MATERIAL a...
AIM: Although conventional posterior lumbar interbody fusion (PLIF) using pedicle screws provides successful outcomes, pedicle screw related complications are sometimes noted. SPIRE? was invented as an interspinous fixation device (ISD) to replace pedicle screw. The aim of this study is to evaluat...
AIM: We analyzed the demographics, clinical and radiological characteristics of non-myelopathic cervical ossification of the posterior longitudinal ligament (OPLL) patients. MATERIAL and METHODS: This study included 115 patients with cervical OPLL but without myelopathy. Demographic features of a...
AIM: To compare the results of ultrasound and fluoroscopy guided caudal epidural steroid injections in postlaminectomy patients. MATERIAL and METHODS: Thirty postlaminectomy patients were randomly divided into two groups, Group I (n=15) received ultrasound-guided and Group II (n=15) received fluor...
AIM: To evaluate the efficacy of the rehabilitation protocol on patients with lumbar degenerative disc disease after posterior transpedicular dynamic stabilization (PTDS) surgery. MATERIAL and METHODS: Patients (n=50) with single level lumbar degenerative disc disease were recruited for this study...
AIM: Intraoperative neurophysiological monitoring (IONM) monitors the functional integrity of critical neural structures by electrophysiological methods during surgery. Multimodality combines different neurophysiological methods to maximize diagnostic efficacy and provide a safety margin to improv...
AIM: A quantitative model of postlaminectomy was designed in rats. The effects of Momordica Charantia (MC) and Ankaferd blood stopper (ABS) on the bone and scar formation after laminectomy were concurrently evaluated. MATERIAL and METHODS: Eighteen adult Wistar albino rats underwent lumbar laminec...
AIM: To investigate the effectiveness of local steroid injection and surgical decompression in the treatment of patients with severe carpal tunnel syndrome (CTS) and also to compare short-term outcomes using clinical and electrophysiological criteria. MATERIAL and METHODS: The patients diagnosed a...
AIM: The aim of this study was to evaluate the effect of cerebrospinal fluid (CSF) in nerve regeneration across the collagen guide channel in comparison with autograft. MATERIAL AND METHODS: Forty adult male rats (250-300 g) were randomized into (1) collagen channel+CSF, (2) collagen channel+norm...
AIM: Despite great advances in treatment of aneurysmal subarachnoid hemorrhage (aSAH), yet, a consensus as to the most optimal timing of surgery has not been reached. In order to identify the most suitable time of surgery for aSAH, the authors conducted a meta-analysis and systematic review. MATE...
AIM: To identify whether neuronavigation-assisted aspiration (NA) combined with electro-acupuncture (EA) provides better motor recovery in events of hypertensive putaminal hematoma (HPH) sized 30 to 50 ml. This study aims to examine whether neuronavigation-assisted aspiration and electro-acupunctu...
AIM: Neurogenic pulmonary edema (NPE) is the most serious complication of subarachnoid hemorrhage (SAH). As vagal nerves have vital roles in lung functions, vagal ischemia may have a causative role in the pathogenesis of NPE. We examined whether there was a relationship between vagal complex ische...
AIM: The brain venous drainage dominance is generally divided into three groups; right or left dominance and co-dominance. There is no study in the literature examining the link between brain venous drainage and aneurysm formation or rupture. Our aim was to evaluate the association between venous ...
AIM: Current stroke therapies include lipid-lowering drugs, which reduce inflammation and serve to stabilize the atherosclerotic plaque to demonstrate better outcome and neuroprotection. Peroxisome proliferator activated receptors (PPAR) ? regulates lipid homeostasis and is a target of fibrates, w...
AIM: To identify in-house assessment criteria to predict outcomes of driving tests in patients with stroke who wish to resume driving. MATERIAL and METHODS: A total of 181 patients with stroke who attended Fukui General Hospital (as outpatients or inpatients) between 2003 and 2015 and who had no o...
AIM: To investigate the neuroprotective effect of chronic curcumin supplementation on the rat forebrain prior to ischemia and reperfusion. MATERIAL and METHODS: Forebrain ischemia was induced by bilateral common carotid artery occlusion for 1/2 hour, followed by reperfusion for 72 hours. Older ra...
AIM: To compare the clinical results of different transcortical approaches for the removal of third ventricular colloid cysts (CC). MATERIAL and METHODS: Records of 41 colloid cyst patients who underwent transcortical conventional microsurgical, microsurgical with the aid of stereotactically guide...
AIM: Brainstem gliomas (BSG) constitute less than 2% of brain tumors in adults. Therapeutic options are limited and BSG are associated with a high morbidity and mortality. MATERIAL and METHODS: We reviewed the records of 51 patients with BSG treated at the Institute of Neurosurgery, Clinical Cent...
AIM: To evaluate the surgical strategies and functional outcomes of intramedullary cervicomedullary ependymoma (ICE). MATERIAL and METHODS: The authors retrospectively reviewed the clinical and imaging data of 28 ICE patients who underwent surgical resection, including 11 males and 17 females and ...
AIM: To report our clinical experience, surgical treatment algorithm and technique in the reconstruction of uncomplicated and small-size calvarial defects by performing autologous split-bone grafting technique on anatomical findings and patients" outcome. MATERIAL and METHODS: We covered the defec...
AIM: The premature closure of the metopic suture results in metopic synostosis, also known as trigonocephaly. However, there is a group of children who have only a frontal metopic ridge, obvious with inspection and fingertip palpation, without the clinical features of trigonocephaly. This study ai...
AIM: Ventriculoperitoneal shunt infection (VPSI) is one of the main causes of mortality and morbidity in hydrocephalus. Platelet indices, mean platelet volume (MPV) and platelet distribution width (PDW) have been evaluated for some infectious diseases. In this study we aimed to investigate whether...
AIM: Extent of secondary injury is the determinant of tissue destruction and functional worsening after primary spinal cord injury (SCI). Data have accumulated on alleviation of secondary injury in SCI from many studies on the subject. Besides its cholesterol lowering effects, statins are known to...
AIM: Lumbar discectomy is a common surgical intervention in neurosurgical practice. Iatrogenic vascular injury during this surgery is a rare, but serious complication. In this study, our aim was to review the average safe depth of discectomy for both sexes. MATERIAL and METHODS: This study involve...
AIM: Many studies are available in the literature on posterior spinal instrumentation, though the use of a rod and a plate is still controversial in the literature. In this study, a finite element analysis of the strength and superiority of modular rigid plate and rod systems, which are used in th...
AIM: Conjoined nerve roots (CNR) can be damaged during lumbar disc surgery and lead to neuropathic pain due to excessive retraction. The purpose of this study was to investigate the factors that facilitate the identification of CNRs that can lead to the loss of fragments in the secondary axilla, n...
AIM: Intervertebral disc degeneration can cause severe low back pain. Intradiscal electrothermal therapy (IDET) is a minimally invasive treatment option for patients with symptomatic internal disc disruption unresponsive to conservative medical care. We aimed to evaluate 12-month pain and function...
AIM: Studies of spinal biomechanics typically do not focus on the contributions to range of motion (ROM) of the primary components of the spinal canal, dura, arachnoid, pia, spinal cord, nerve roots, ligaments, and vessels. We sought to determine the stability offered by these soft tissues in vitr...
AIM: Sciatic nerve injury is the most frequent and serious complication of intramuscular gluteal injection. This study aims to highlight the incidence and causes of this continuing problem and to discuss the relevant literature.
AIM: Following severe peripheral nerve injury (PNI), regeneration is often insufficient and functional recovery is incomplete. In this regard, glutamate N-methyl-D-aspartate (NMDA) receptor antagonist such as Memantine have been shown to have neuroprotective effects. We evaluated the effects of Me...
AIM: To investigate whether nerve regeneration can be induced in the tubular bone between distal and proximal cut nerve ends. MATERIAL and METHODS: Twenty adult Wistar rats were used for the study. Rats were divided into three groups; femoral bone conduit group, nerve transection group, sham group...
AIM: To observe the correlation between 1p/19q codeletion, isocytrate dehydrogenase-1 (IDH1) mutation and p53 protein overexpression and their prognostic value in Turkish anaplastic oligodendroglioma patients who were treated with adjuvant radiotherapy and temozolomide chemotherapy. MATERIAL and ...
AIM: Evidence suggests an association between MMP-9 functional gene polymorphisms and several tumors. The aim of this study was to investigate the possible role of single-nucleotide polymorphisms (SNP) at MMP-9 R279Q A/G, P574R G/C and R668Q G/A and R668Q (rs17577) genotypes with glial tumors in T...
AIM: The result of surgical resection for insular high-grade glioma (HGG) is disappointing due to the complex anatomy of insula and aggressive growth of HGG. The use of intraoperative magnetic resonance imaging (iMRI) was reported to improve the results of glioma surgery. The authors aimed to eval...
AIM: Olfactory groove meningiomas make up 4 to 13% of meningiomas. The first line treatment of meningiomas is surgery, but the extent and types of approaches advised for olfactory groove meningiomas are diverse, from aggressive skull base approaches to standard or minimally invasive craniotomies a...
AIM: Glioblastoma (GBM) is an aggressive brain tumor in humans. The median survival rate of patients is one year after the diagnosis. So, development of an animal model is necessary for the advances in the research treatment of GBM. The aim of this study was to investigate the capability of human ...
AIM: To evaluate the follow-up results of patients who underwent surgical treatment for distal anterior cerebral artery (pericallosal artery) aneurysms and compare our results with the literature. MATERIAL and METHODS: Nineteen patients were operated between 2000 and 2013 with preoperative angiogr...
AIM: To report our experience with a relatively large series of patients with non-traumatic non-aneurysmal subarachnoid hemorrhage (NNSAH) to identify the prognosis associated with different bleeding patterns as well as a further diagnostic work-up to determine the underlying cause. MATERIAL and ...
AIM: For cerebral arteriovenous malformations (AVMs) involving language areas, right-sided language lateralization on functional magnetic resonance imaging (fMRI) has been reported, which is regarded as language cortex reorganization. The authors attempted to study if this right-sided language lat...
AIM: Cerebral vasospasm after subarachnoid hemorrhage (SAH) is an important cause of morbidity and mortality. In this study, we examined the effects of L-carnitine on the cerebral vasospasm process. MATERIAL and METHODS: Twenty male New Zealand white rabbits were randomly divided into 4 groups. Gr...
AIM: This prospective study was designed to analyze the dependence of different factors on the recurrence rate of chronic subdural hematoma (cSDH) after surgical treatment. MATERIAL and METHODS: Seventy-three consecutive patients, who were surgically treated at our department due to cSDH between ...
AIM: Cerebrospinal fluid (CSF) leakage is a feared complication after microvascular decompression (MVD). In this study, we present our experience of fleece-bound tissue sealing in MVD with an aim to minimize the rate of postoperative CSF leakage. MATERIAL and METHODS: We treated 50 patients (femal...
AIM: To evaluate the incidence of anatomical variations and abnormalities of the third ventricle floor encountered during the endoscopic third ventriculostomy (ETV) procedure in myelomeningocele-associated hydrocephalus (MAH) cases. MATERIAL and METHODS: A retrospective analysis was performed on 4...
AIM: To investigate the impact of endoscope-assisted microsurgical fenestration on temporal arachnoid cysts, and to determine the advantages and limitations of the technique. MATERIAL and METHODS: Twenty-five children with symptomatic temporal arachnoid cysts were operated via eyebrow supraorbita...
AIM: To analyze the cognitive abilities of older patients undergoing spinal deformity surgery so as to understand whether adult spinal deformity (ASD) surgery is associated with postoperative cognitive malfunction. MATERIAL and METHODS: A prospective longitudinal study was performed on surgical pa...
AIM: To investigate the clinical outcomes of bilateral decompression via unilateral approach (BDUA) on degenerative spondylolisthesis with spinal stenosis in patients over 75 years of age. MATERIAL and METHODS: Elderly patients (n=41; average age=79.3±2.5 years) who underwent BDUA under spinal ana...
AIM: To evaluate the clinical success of the en bloc laminoplasty and impact of the arcocristectomy on postoperative axial pain of the patients with cervical spondylotic myelopathy (CSM). MATERIAL and METHODS: A retrospective review of 81 patients with CSM who underwent en bloc cervical laminoplas...
AIM: Electrophysiological evaluation of the outcomes of spinal procedures is important for neurosurgeons. Somatosensorial evoked potentials (SSEPs) are used for electrophysiological evaluation of tethered cord syndrome (TCS) and spinal intradural tumors (SIT). The aim of this study was to document...
AIM: An increasing number of patients engage in health information seeking via the internet. We aimed to determine the quality of information on the internet for treatment of three common neurosurgical conditions associated with low back pain using the DISCERN® instrument. MATERIAL and METHODS: T...
AIM: It has been proposed that apoptosis is effective on intervertebral disc degeneration. This study is the first study in which both polymorphisms and expressions of apoptotic genes in patients with intervertebral disc degeneration (IVDD) are evaluated together. The aim of our study is to determ...
AIM: To investigate the effects of genistein in a rat model of sciatic nerve crush injury and complete sciatic nerve transection. The effects of genistein were compared with those of gabapentin, which is widely used in clinical practice for peripheral nerve injury. MATERIAL and METHODS: Forty-eigh...
AIM: To investigate the vascular variations in patients with intracranial aneurysm in circle of Willis. MATERIAL and METHODS: We used the data on 128 consecutive intracranial aneurysm cases. Cerebral angiography images were analyzed retrospectively. Arteries were grouped as anterior cerebral arter...
AIM: To report the initial experience of cerebral aneurysm treatment with Tapered flow diverters (TFDs). MATERIAL and METHODS: Thirty patients with 34 aneurysms underwent cerebral aneurysm treatment with TFD (Silk, Balt, Montmorency, France) between March 2011 and March 2016. Procedural findings, ...
AIM: To develop a specific rehabilitation protocol for patients who have undergone surgical repair of acute aneurysmal subarachnoid hemorrhage (aSAH), and to determine the time at which verticalization should be initiated after aSAH. MATERIAL and METHODS: Sixty-five patients who underwent acute-te...
AIM: Cerebral vasospasm after subarachnoid hemorrhage (SAH) may lead to a devastating neurological outcome by inducing cerebral ischemia. However the role of external carotid artery (ECA) vasospasm has been rarely reported in the literature. The aim of this study was to elucidate the effect of ECA...
AIM: Cerebral vasospasm following subarachnoid hemorrhage (SAH) is the most important complication that effects the mortality and morbidity of patients with intracranial aneurysm. Today, the mechanisms of vasospasm are not understood in spite of experimental and clinical researches. The aim of our...
AIM: The U251 and U87 cell lines are commonly used as experimental models of glioblastoma. However, these cells exhibit significant differences in their proliferation, invasion, and migration. The aim of the present study was to compare the protein expression profiles of the U251 and U87 cell line...
AIM: The method of choice for reconstruction of large acquired scalp defects depends on numerous factors. The aim of our study was to analyze reconstructions of large acquired scalp defects performed on 135 patients in the period of 10 years. MATERIAL and METHODS: We have monitored the factors wi...
AIM: Dropping a skull flap on the floor is an uncommon and avoidable mistake in the neurosurgical operating theater. MATERIAL and METHODS: This study retrospectively reviewed all incidents of dropped skull flaps in Ain-Shams University hospitals during a 10-year period to show how to manage this p...
AIM: To evaluate the effects of cerebroventricular administration of hyperoncotic/hyperosmotic agents on edematous brain tissue in rats with experimental head trauma. MATERIAL and METHODS: The study included 54 female Sprague-Dawley rats with weights ranging between 200 and 250 g. Six experimenta...
AIM: Traumatic brain injury (TBI) is a complex process. Increasing evidence has demonstrated that reactive oxygen species contribute to brain injury. Resveratrol (RVT) which exhibits significant antioxidant properties, is neuroprotective against excitotoxicity, ischemia, and hypoxia. The aim of th...
AIM: Television tip overs and head traumas in children showed an increase in the recent years in Turkey and throughout the world. In this study, the injury types, the surgical interventions and the children exposed to head trauma due to an accident caused by a falling television were investigated ...
AIM: To investigate whether programmable cerebrospinal fluid (CSF) shunts are influenced by exposure to the magnetic field and to compare the effects of magnetic field in 4 different brands of programmable CSF shunts. MATERIAL and METHODS: This experimental study was performed in the laboratory u...
AIM: To assess the in-hospital mortality rate in adult patients suffering acute traumatic complete quadriplegia and determine the possible predictors of mortality in these patients. MATERIAL and METHODS: A review of all complete quadriplegics treated from January 1996 through March 2004 in a regio...
AIM: At the cellular level, spinal cord injury (SCI) provokes an inflammatory response that generates substantial secondary damage within the spinal cord but may also contribute to its repair. Besides intracellular antioxydant increase after exactly estimated oxidative stress; oxygen formation and...
AIM: To evaluate the effect of pregabalin pre-treatment on spinal cord ischemia-reperfusion (I/R) injury and compare with methylprednisolone (MP). MATERIAL and METHODS: Thirty-two rats were randomly divided into four groups as follow: Group 1 (sham)(n=8), group 2 (ischemia only)(n=8), group 3 (30...
AIM: Leptomeningeal adhesions and fibrosis in the spinal peridural space are the most common causes of post-laminectomy syndrome. Fibrin sealant agents and membrane barriers are commonly used for hemostasis and sealing purposes in spinal surgery. Peridural fibrosis may be a risk of the usage of th...
AIM: To investigate the anti-scarring potential of topical cyclosporine on rat sciatic nerves. MATERIAL and METHODS: Both sciatic nerves were exposed in 24 adult male albino Wistar rats, and an abrasion injury was made on the biceps femoris close to the sciatic nerve. Cotton pads soaked with cyclo...
AIM: Fusion development is the primary goal in spinal surgeries that are conducted for the treatment of vertebral body pathologies such as trauma, tumor and infection. Stabilization using metal plate screws together either with an autograft, allograft or xenograft is used. We evaluated fusion deve...
AIM: To investigate and compare the histological findings of patients with diabetes, hypothyroidism and idiopathic carpal tunnel syndrome (CTS). MATERIAL and METHODS: Subsynovial connective tissue samples of 51 idiopathic CTS patients (Group 1), 58 diabetic CTS patients (Group 2) and 16 hypothyro...
AIM: Microscope may fail to detect culprit vessel at the root entry zone or distally, especially when the suprameatal tubercle is prominent and when the compressing vessel is lying anteriorly to the trigeminal nerve without using significant brain retraction. Endoscopic techniques allow better vis...
AIM: To evaluate the contribution of Turkish scientists to four journals published by Journal of Neurosurgery (JNS) Publishing Group and to Acta Neurochirurgica (AN) and to its Supplement (ANS). MATERIAL and METHODS: We reviewed every issue of those journals to December 2015 for the total number o...
AIM: Meningioma literature has many large surgical case series, which have been references of text books and neurosurgical practice. Many of those series were published when stereotactic radiosurgery (SRS) was not so common or these series were in terms of World Health Organization (WHO) 2000 clas...
AIM: To evaluate and compare the expression of thioredoxin reductase 1 (TrxR1) in primary and secondary glioblastoma samples. MATERIAL and METHODS: Surgically resected human glioblastoma samples from 40 patients who underwent surgery at our institution were extracted from their histopathological s...
AIM: Glioblastoma (GBM) is one of the lethal central nervous system tumors. One of the widely used chemical agents for the treatment of glioblastoma is temozolomide. It is an orally administered, deoxyribonucleic acid (DNA) alkylating agent. DNA alkylation triggers the death of tumor cells. Howeve...
AIM: Glioblastoma multiforme (GBM) is one of the malignant brain tumors that occur most frequently. Despite advances in therapy techniques, the cure of GBM is a major concern. Accordingly, there is a lot of interest in devising novel approaches, such as stem cell therapy, to treat patients with GB...
AIM: Primary intracranial germinomas (PIGs) are rare malignant brain tumors that represent approximately 0.2% to 1.7% of all primary intracranial tumors. PIGs have infrequent, but there is a possibility of spinal cord metastases. In this study, clinical outcomes of five consecutive PIGs have been ...
AIM: Shunt-dependent hydrocephalus (SDH) is a relatively common complication following aneurysmal subarachnoid hemorrhage (aSAH). Delay in diagnosis and treatment may worsen neurological outcome. This study was conducted to identify early clinical factors associated with SDH following aSAH. MATER...
AIM: Clinical treatment of multiple intracranial aneurysms remains challenging due its higher rate of rupture compared to a single aneurysm. We aimed to assess the efficacy of one-stage endovascular embolization for treatment of multiple intracranial aneurysms. MATERIAL and METHODS: We treated 72 ...
AIM: To investigate the relationship between neuron density of the superior cervical sympathetic ganglia and pupil diameter in subarachnoid hemorrhage. MATERIAL and METHODS: This study was conducted on 22 rabbits; 5 for the baseline control group, 5 for the SHAM group and 12 for the study group. ...
AIM: Micro-vascular anastomosis is a difficult art. It can be learnt and perfected only by practice using vessels of small animals in the laboratory. The purpose of the study was to practice various anastomotic techniques using rat femoral vessels and study the patency rates. MATERIAL and METHODS...
AIM: To evaluate the effectiveness of lumboperitoneal (LP) shunt procedures in the treatment of normal pressure hydrocephalus (NPH). MATERIAL and METHODS: A medical record review was conducted to obtain demographic, clinical, laboratory data, as well as pre-, intra, -postoperative details of 65 p...
AIM: The Chiari Malformation I (CM I) and the tethered cord syndrome (TCS) are both congenital abnormalities whose mechanisms are still not fully understood. The association of CM I and TCS has been reported only a few times previously. MATERIAL and METHODS: This retrospective study included 7 pat...
AIM: To evaluate iatrogenic vascular injuries in the craniocervical region and their endovascular management. MATERIAL and METHODS: Twenty-one patients (9 women, 12 men) with a mean age of 53.6 years (range 16-87 years), who underwent endovascular embolization for iatrogenic vascular injury in the...
AIM: To evaluate the neurological outcomes of children diagnosed with brain abscesses in the early post-treatment period.< b>MATERIAL and METHODS: This study was a retrospective analysis of pediatric brain abscess patients between January 2000 and December 2015, during a 16-years period. Patients ...
AIM: To evaluate the long-term efficacy and safety of microvascular decompression (MVD) for treating trigeminal neuralgia (TN), and identify the predictors of pain relief. MATERIAL and METHODS: A total of 425 patients who underwent surgery between 1991 and 2011 for idiopathic TN were included in ...
AIM: To determine whether the Thoracolumbar Injury Classification and Severity Score (TLICS) and the Arbeitsgemeinschaft für Osteosynthesefragen (AO) Spine Thoracolumbar Injury Classification System have any superiority to each other regarding the reliability of their recommendations in the surgic...
AIM: To evaluate the perioperative morbidities of patients taking anti-platelet medication prior to multi-level thoracolumbar spine surgery.
AIM: It is well known that treatment modalities against secondary damage due to spinal cord injury (SCI) are very important. This phase has been researched in many experimental studies. Apoptosis is one of the major mechanisms of secondary damage on spinal cord. The present study was undertaken to...
AIM: To investigate the effects of local and systemic administration of etanercept on the formation of epidural fibrosis. MATERIAL and METHODS: Twenty-eight rats were randomly divided into four equal groups (Control, SpongostanTM, Local etanercept and Systemic etanercept) and laminectomy was perfo...
AIM: Spinal cord arteriovenous fistulas are rare cause of progressive myelopathy. The predictive factors of their outcome after endovascular or surgical treatment are still controversial. MATERIAL and METHODS: Twenty patients were diagnosed with spinal arteriovenous fistulas; 13 of them had dural ...
AIM: Creatine is an endogenous molecule synthesized in the liver, kidney and pancreas from glycine and arginine and is important for mitochondrial metabolism. It is widely used as a supplement for improving muscle mass and function for many years. As it is expected to prevent apoptosis and diminis...
AIM: Neonatal intraventricular hemorrhage (IVH) usually results in posthemorrhagic hydrocephalus (PHH). This multicenter study describes the approach of early neuroendoscopic ventricular irrigation for the treatment of IVH/PHH and compares the results with the cases that have been initially treate...
AIM: To describe the relationship between the parenchymal pressure changes and the development of hydrocephalus in kaolininjected neonatal rats according to cerebral regions and time intervals of developing hydrocephalus. MATERIAL and METHODS: Neonatal rats aged 2 to 3 days were examined in 5 grou...
AIM: Chordomas are rare, slow growing but locally aggressive malignancies of the axial skeleton. Skull base chordomas, due to their intricate anatomical localization, pose significant challenges to managing physicians. In classical and chondroid chordomas, the disease course cannot be reliably det...
AIM: To identify differentially expressed microRNAs in medulloblastoma, and to investigate their biological function. MATERIAL and METHODS: Differentially expressed microRNAs were identified using gene chips, and significantly different microRNAs were selected for verification using real time quan...
AIM: To present our experience with the awake craniotomy (AC) method starting from the preoperative period, to report the morbidity and the functional outcomes along with the complications in patients who underwent AC, and to make recommendations for possible problems. MATERIAL and METHODS: This ...
AIM: To present the results of endoscopic endonasal repair of ventral midline skull base cerebrospinal fluid (CSF) leak (VMSBL) at our institution and to discuss the technique and results from a neurosurgical perspective. MATERIAL and METHODS: A retrospective analysis of all VMSBL cases that under...
AIM: Neurosurgical oncology that is performed for lesions located in critical areas like the sensorimotor area has additional risk because it may cause serious neurological deficiencies. Some intraoperative neuromonitoring (IONM) modalities can effectively help the surgeons to maximize resections ...
AIM: To examine morphological, radiological and biochemical effects of arginine vasopressin (AV) and V1 receptor antagonist on cerebral vasospasm (CVS) after subarachnoid hemorrhage (SAH) in rabbits. MATERIAL and METHODS: Forty male New Zealand white rabbits were randomly divided into four groups ...
AIM: Eagle syndrome is a rare entity that causes recurrent throat pain, neck pain, dysphagia, or facial pain due to an elongated styloid process or calcified stylohyoid ligament. Clinical findings related to lower cranial nerve compression have also been reported. In some cases, it is reported tha...
AIM: Surgical procedures for aneurysmal subarachnoid hemorrhage (SAH) are increasing among the elderly as the population ages. Chronic shunt-dependent hydrocephalus is a recognized complication of SAH. The aim of this study was to identify predictive factors for the development of shunt-dependent ...
AIM: Injury to the vascular supply to the cervical spinal cord can lead to the anterior spinal artery syndrome, which is often associated with transforaminal corticosteroid injections to the cervical foramina. The purpose of this cadaveric study was to examine the morphology of the cervical arteri...
AIM: Angiogenesis occurs after intracerebral hemorrhage (ICH). Hypoxia-inducible factor-1α (HIF-1?) is a critical regulator of angiogenesis. However, its role in the central nervous system remains controversial. 2-Methoxyestradiol (2ME2), a natural metabolite of estrogen, is known to inhibit ...
AIM: To evaluate the effectiveness and the use of Glasgow Coma Score (GCS) and Full Outline of Unresponsiveness (FOUR) score by nurses in the follow-up and evaluation of patients admitted to the neurosurgical intensive care unit for cranial surgery or head trauma. MATERIAL and METHODS: The study ...
AIM: To define the role of phase-contrast cine magnetic resonance imaging (MRI) in deciding the therapeutic strategy and underlying pathophysiology resulting in syrinx formation in patients with Chiari type 0 malformation. MATERIAL and METHODS: Seven patients who were admitted to our clinic with t...
AIM: Some restriction and complications, such as progression of kyphosis, incidence of axial neck pain and decrease of postoperative cervical range of motion are concern. We designed this retrospective clinical study to evaluate the effect of laminoplasty by preserving the muscle attachments of C2...
AIM: To describe the intra- and postoperative results of patients who received a transforaminal anterior epidural steroid injection (TAESI) prior to lumbar microdiscectomy. MATERIAL and METHODS: Sixty-four patients who did not improve after minimally invasive techniques (MIT) for lumbar radiculop...
AIM: In unique clinical situations where C1-C2 posterior fixation is not available or has previously failed, an anterior transarticular screw (ATAS) may be a viable alternative. However, there are no previous reports that investigate possible screw angles, screw entry points, and screw length base...
AIM: To compare and analyze the influence of the duration of neurological symptoms and degree of neurological deficits on the postoperative neurological recovery of patients with neurological deficits caused by spinal tuberculosis (TB). MATERIAL and METHODS: We retrospectively reviewed the data of...
AIM: Conservative treatment is a frequently used treatment modality for traumatic thoracolumbar fractures. However, not many studies evaluating radiological and clinical results of conservative treatment are found. The aim of this study was to determine the risk factors, and compression and kyphos...
AIM: Nerve entrapment syndromes are the most common causes of neuropathic pain. Surgical decompression is the preferred method of treatment. The aim of this study was to compare the efficacy of curcumin, tramadol and chronic constriction release treatment (CCR), individually or together, in a rat ...
AIM: Advances in neuroradiological planning techniques in deep brain stimulation have put the need for intraoperative electrophysiological monitoring into doubt. Moreover intraoperative monitoring prolongs surgical time and there is potential association between the use of microelectrodes and incr...
AIM: To evaluate the effect of shunt selection on the rate of shunt revision due to early shunt complications in neonatal myelomeningocele-associated hydrocephalus. MATERIAL and METHODS: The data of 157 neonatal myelomeningocele cases in three pediatric neurosurgery centers (Ankara University, Ko...
AIM: To describe and evaluate the anaesthesiological regimen used in neurophysiologically monitored image-guided mini-invasive neurosurgery. MATERIAL and METHODS: Twenty-four patients underwent elective surgery under general anaesthesia that was administered through Target Controlled Infusion (TC...
AIM: Accurate localizations of cerebral lesions ensure good surgical outcomes and minimize intraoperative complications. Currently, microscope-integrated neuronavigation systems compensate these requirements. Since these units are expensive and large, the need to create more practical and portable...
AIM: To explore the clinical value of bone flap creation and the sinus protection in the approach of retrosigmoid keyhole craniotomy with the guidance of three-dimensional (3D) sliced computed tomography (CT) reconstruction of the skull transverse sinus and sigmoid sinus groove. MATERIAL and METH...
AIM: To investigate whether sleep quality and sleepiness of patients who undergo surgery for pituitary adenomas differ from healthy individuals. MATERIAL and METHODS: Forty-four patients who were operated for pituitary adenomas and 44 healthy individuals, 88 subjects in total, were evaluated by a...
AIM: Limited focus has been placed on neuropsychological patient profiles after spontaneous subarachnoid hemorrhage (sSAH). We conducted a prospective controlled study in good-grade sSAH patients to evaluate the time course of treatment-specific differences in cognitive processing after sSAH. MAT...
AIM: Whether an antiepileptic drug (AED) should be prescribed for intracerebral hemorrhage (ICH) patients is a matter in dispute, and recent studies have come up with different or even opposite views. A meta-analysis on this issue has not been performed. The goal of this meta-analysis was to study...
AIM: To report the outcome of microsurgical revascularization in patients with Moyamoya Disease (MMD) in Southern Iran. MATERIAL and METHODS: This cross-sectional study was conducted in Southern Iran during a 7-year period from 2009 to 2016. All the patients with Moyamoya Disease (confirmed with d...
AIM: Currently, the platelet count threshold for platelet transfusion, that is commonly used prior to surgical evacuation of chronic subdural hematoma (CSDH), is 100,000 per microliter. This study was done to show the outcome of the surgical evacuation of CSDH in patients with intractable thromboc...
AIM: To evaluate microcirculatory changes in neighboring parenchyma as a result of pressure due to chronic subdural hematoma (CSDH) in early and late periods after hematoma drainage. MATERIAL and METHODS: The subject group consisted of 25 patients who underwent CSDH drainage. Brain diffusion and ...
AIM: To describe the impact of the Traumatic Brain Injury management guideline introduction in Hungary. MATERIAL and METHODS: Hospital discharge records (HDR) including age, gender, codes of interventions applied, ICD codes of diagnosed disorders of patients admitted between 01/01/2004 and 31/12/2...
AIM: Skull bone fixation following different cranial surgeries is essential and should be rigid, simple and cheap. We describe our technique of cranial fixation using the adhesive cyanoacrylates. MATERIAL and METHODS: At the end of cranial and intracranial surgeries the craniotomy flap and bone pi...
AIM: Dysnatremic cases are frequently faced in clinical practice. Its macroscopic effects and consequences are well known, but microscopic effects are not well defined. The aim of this study was to reveal the effects of dysnatremia at the cellular level. MATERIAL and METHODS: By using an action po...
AIM: Oblique lateral interbody fusion (OLIF) is a minimally invasive surgical method that can provide an access to the lumbar spine without direct dissection of psoas muscle and the need for intraoperative neuromonitoring (IOM) is questionable. The aim of this study was to examine and document the...
AIM: To investigate the correlation of the Symptom Checklist-90-R (SCL-90-R) anxiety, depression, and somatization subscale scores with chronic low back pain (LBP). MATERIAL and METHODS: Seventy-five patients who were admitted with the complaint of chronic LBP (patient group) and 75 healthy perso...
AIM: To evaluate the clinical efficacy of the one-stage posterior approach in treating consecutive multiple-segment thoracic tuberculosis with kyphosis. MATERIAL and METHODS: A retrospective study was performed. The data of 22 patients with consecutive multi-level thoracic tuberculosis and kyphos...
AIM: The etiology of intervertebral disc degeneration is still vague and both genetic and environmental factors are assumed as the main causes. One of the proposed genetic factors is the polymorphism of matrix metalloproteinases (MMPs) genes. The aim of this study was to explore the relationship b...
AIM: To report our results about minimally invasive transforaminal lumbar interbody fusion (MI-TLIF) with bilateral pedicle screw fixation, in patients with degenerative lumbosacral spine disease. To describe the indications, surgical technique and results of a consecutive series of 40 patients wh...
AIM: To describe a modified Jaslow-transforaminal lumbar interbody fusion (TLIF) technique for the treatment of single-level, isthmic spondylolisthesis (IS). MATERIAL and METHODS: Between April 2011 and September 2012, 32 patients with IS undergoing a modified Jaslow-TLIF were retrospectively rev...
AIM: Iatrogenic vascular injuries due to spinal surgeries are rare but serious complications. Surgical management of these injuries is challenging with high morbidity rates. In this study we aim to present the results of endovascular management of iatrogenic vascular injuries due to spinal surgeri...
AIM: To analyze the cases discussed at the High Health Council (HHC) and to determine the solutions for problems related to gluteal intramuscular injection (IMI) applications. MATERIAL and METHODS: In a 10-year period, the cases of IMI-related sciatic nerve injury (SNI) referred for an opinion fro...
AIM: Papaverine is a vasodilator agent that is an opium alkaloid. It exhibits its effects by inhibiting the phosphodiesterase enzyme. Papaverine administration is widely used to avoid symptomatic vasospasm after subarachnoid hemorrhage. We aimed, in this research, to study the effects of papaverin...
AIM: Deep brain stimulation (DBS) surgeries are multi-faceted and the various steps are interconnected. Since its first implementation, the method of DBS surgery has undergone changes. We have encountered several expected and also non-expected perioperative technical complications in the past seve...
AIM: To evaluate the efficiency of the telovelar approach for fourth ventricular lesions through identifying and preserving neurovascular structures. MATERIAL and METHODS: A total of 40 patients with fourth ventricular tumors were treated via the telovelar approach between 2005 and 2014. RESULTS...
AIM: To explore the possible invasive effect of four microRNAs (miRNAs) in invasive pituitary adenomas. MATERIAL and METHODS: Based on our previous studies, several in silico algorithms, and relative literature, 30 Han Chinese patients with invasive pituitary adenomas and 30 with non-invasive pitu...
AIM: Studies have illustrated that chemotherapeutic drugs induce endoplasmic reticulum (ER) stress in glioblastoma cells. In our previous studies, it is clear that anti-transferrin receptor (anti-TfR) monoclonal antibody (mAB) 7579 enhanced anti-tumor effects of chemotherapeutic drugs on human gli...
AIM: Stent assisted coiling (SAC) is an alternative in the treatment of ruptured aneurysms. Stenting requires the use of dual antiplatelet agents. Hydrocephalus is a complication of subarachnoid hemorrhage (SAH) and may require ventriculostomy. Antiplatelet treatment carries a risk of hemorrhage i...
AIM: We report our experience with flow diverter devices in the treatment of intracranial aneurysms arising from the anterior circulation with mid- and long-term follow-up. MATERIAL and METHODS: Seventy-eight aneurysms in 61 patients (range 25-81 years, 13 male, 48 female) were treated with flow ...
AIM: To investigate the size and variations of the foramen transversarium (TF). In addition, to study the anatomical variations of the vertebral artery entering the transverse foramen of the cervical vertebrae. MATERIAL and METHODS: The images of 141 (90 males, 51 females) patients aged 18-79 year...
AIM: To compare effectiveness of contrast-enhanced magnetic resonance angiography (CE-MRA), 3D-Time-of-flight magnetic resonance angiography (3D-TOF-MRA) and subtracted computed tomography angiography from computed tomography perfusion (sub-CTA) in residue evaluation of intracranial aneurysms trea...
AIM: To assess the efficacy of Neural progenitor cell (NPC) transplantation in ischemic stroke, and to investigate whether atorvastatin enhances therapeutic potency of NPC after stroke. MATERIAL and METHODS: The focal cerebral ischemia-reperfusion model was performed by transient occlusion of midd...
AIM: To investigate the incidence, timing, risk factors of posttraumatic cerebral infarction (PTCI) and its influence on mortality in patients with moderate to severe traumatic brain injury (TBI). MATERIAL and METHODS: After reviewing the medical records and radiographs over a 6-year period, 173 p...
AIM: To determine the microbiological etiology in critically ill neurosurgical patients with nosocomial meningitis (NM) and to show the impact of Gram-negative rods and the differences between patient characteristics and the clinical and prognostic measures in Gram-negative and Gram-positive menin...
AIM: To investigate risk factors for surgical site infection (SSI) after three-column osteotomy (3CO) for spinal deformity. MATERIAL and METHODS: The American College of Surgeons National Surgical Quality Improvement Program database (2012? 2014) was reviewed. We included adult patients who underw...
AIM: To share our experiences and to contribute to the literature by making a retrospective analysis of the patients we operated with a screw-rod system for atlantoaxial instability in our clinic. MATERIAL and METHODS: Archive files of adult patients, who were operated for posterior C1-C2 stabiliz...
AIM: To compare clinical outcomes of the patients operated from the contralateral or ipsilateral side for unilateral radiculopathy in spinal stenosis. MATERIAL and METHODS: This was a retrospective study. Twenty patients were listed as Group 1 (Contralateral) with unilateral radiculopathy and spi...
AIM: Ossification of the ligamentum flavum (OLF) is a primary cause of thoracic myelopathy. A relatively safe surgical technique based on radiological type is described for OLF-induced thoracic myelopathy. MATERIAL and METHODS: Forty patients with thoracic myelopathy caused by OLF were studied ret...
AIM: To investigate the effects of intrathecal caffeic acid phenethyl ester (CAPE) on tissue and serum interleukin-6 (IL-6) and tumor necrosis factor-alpha (TNF-?) levels following spinal cord injury (SCI) as well as its effects on edema and microhemorrhage. MATERIAL and METHODS: Forty rats were d...
AIM: To investigate immunologic reactions after implantation of stainless steel (SS) alloy and titanium (Ti) alloy in a rat model. Macrophage and cytokine responses have been reported after in vivo and in vitro application of different biomaterials. MATERIAL and METHODS: Wistar albino rats were us...
AIM: To compare the results of nerve grafting versus common infraclavicular intraplexal nerve transfer in elbow flexion restoration. MATERIAL and METHODS: The study included 39 patients with upper brachial plexus palsy who were operated using common intraplexal nerve transfer (Oberlin procedure) a...
AIM: One of the major injuries of the nervous system is that of peripheral nerves. Although peripheral nerves show some capacity of regeneration after injury, the extent of regeneration is not remarkable. The present study aimed to evaluate the regeneration of the transected sciatic nerve by biode...
AIM: To investigate the effects of systemic application of bone marrow-derived mesenchymal stem cells in a compression model of peripheral nerve injury. MATERIAL and METHODS: Twenty-four male Wistar albino rats were randomly divided into 3 equal groups (n=8): Control (C), injury (I), and stem cel...
AIM: Ventriculoatrial (VA) shunting is a well-described cerebrospinal fluid diversion method for the treatment of hydrocephalus. However, it may be very challenging in infants and little children because of atrial catheter placement difficulties. This study aimed to create an algorithm to solve pr...
AIM: Delayed ischemic neurological deficit (DIND) and cerebral vasospasm (CV) remain the most common and debilitating neurological complications following aneurysmal subarachnoidal hemorrhage (SAH). Many reports demonstrate the importance of proanthocyanidins (PR) on the vascular system, including...
AIM: To evaluate the preoperative and postoperative 6th month mean apparent diffusion coefficient (ADC) values of the cerebellar tonsils and bulbus in patients with Chiari Malformation Type I (CMI), and to compare the results with healthy controls. MATERIAL and METHODS: We included 15 patients wit...
AIM: To determine the efficacy, safety, and clinical value of a novel surgical procedure involving the blunt perforation of the ligamentum flavum (LF) during endoscopic interlaminar lumbar discectomy. MATERIAL and METHODS: This was a prospective study of 50 patients (25 males, 17-51 years of age) ...
AIM: To evaluate the results of patients who underwent axial, subaxial and upper thoracic laminar screw fixation for posterior stabilization. MATERIAL and METHODS: The patients who underwent laminar screws at the cervical and upper thoracic levels in our clinic in a 5-year period were evaluated r...
AIM: To examine the clinical and radiological follow-ups and results of the patients undergoing fusion procedure by unilateral versus bilateral pedicle screw fixation (PSF) along with transforaminal lumbar interbody fusion (TLIF). MATERIAL and METHODS: Fifty-four patients were included in the stud...
AIM: To evaluate the protective, and if found to be effective, the therapeutic effects of Alpha lipoic acid (ALA) on functional and biochemical parameters in an experimental model of crush peripheral nerve injury in rats. MATERIAL and METHODS: Twenty-eight Sprague-Dawley rats were divided into fou...
AIM: To evaluate the surgical treatment of chronic subdural haematomas (CSDH), we compared two surgical treatments of CSDH; burr-hole craniostomy irrigation with and without drainage. MATERIAL and METHODS: We retrospectively studied patients with chronic subdural haematomas admitted to our hospita...
AIM: To investigate the postoperative complications, such as screw loosening, screw breakage and adjacent segment disease (ASD), in patients who underwent surgery with 2-level dynamic stabilization systems. MATERIAL and METHODS: Postoperative complications, clinical improvements and radiological p...
AIM: To describe a case series evaluating the clinical presentation and outcome following surgery in patients diagnosed with these lesions. MATERIAL and METHODS: A retrospective study conducted over a 4-year period. RESULTS: A total 38 patients who underwent surgery for intracranial epidermoid le...
AIM: To provide a concise description of the external configuration, its internal correspondence and the neurovascular relations of the brainstem with morphometric data that can be useful in surgical planning. MATERIAL and METHODS: The study was conducted on formalin fixed brainstem specimens, whi...
AIM: To report neurological and radiological features, surgical management, and mid-term outcomes of patients with chronic subdural hematoma (CSDH) associated with ipsilateral arachnoid cyst (AC) of the middle fossa. MATERIAL and METHODS: A total of 453 patients with CSDH were treated at our clini...
AIM: To demonstrate the anatomical variations of the infantile brachial plexus. MATERIAL and METHODS: A total of 20 plexus brachialis from 11 fetal cadavers were dissected and examined microscopically. The branching patterns and variations were evaluated. The width of the nerves was assessed at th...
AIM: To assess the role of triangular vertebral canal shape (VCS) in pain severity, pain-related findings, and postoperative satisfaction in patients with lumbar spinal stenosis (LSS) who had undergone decompressive surgery. MATERIAL and METHODS: This cross-sectional study conducted at a single ce...
AIM: To compare the deformity correction success of segmental pedicle screw and hybrid instrumentation for the treatment of Lenke type-1 adolescent idiopathic scoliosis (AIS) curves. MATERIAL and METHODS: Surgically treated Lenke type-1 scoliosis patients were retrospectively evaluated and data of...
AIM: To use computational models to explore the influence of contact with perianeurysmal bone on an intracranial aneurysm. MATERIAL and METHODS: A middle cerebral artery aneurysm in contact with an anterior clinoid process was selected. Two anatomic models were constructed from computed tomography...
AIM: To characterize the macular lesions associated with spinal dysraphism and to determine the outcomes of cases in which macular lesions are not excised. MATERIAL and METHODS: The patient cohort comprised 17 patients with spinal dysraphism who were treated at Mersin University Hospital from 200...
AIM: To investigate whether high dose toxicities of etoposide can be overcome when used in combination with a natural compound named Rosmarinus Officinalis for glioblastoma (GBM). MATERIAL and METHODS: The impact of Rosmarinus Officinalis in combination with etoposide on GBM U87 MG cells and Mouse...
AIM: To evaluate the neuroprotective effects of deocanthal OC in a rat model of traumatic brain injury (TBI). MATERIAL and METHODS: Twenty-six adult male, Wistar albino rats were used. The rats were divided into 4 groups. Group 1 was the sham group (n=5). Group 2 was the trauma group (n=5) where r...
AIM: To use a smartphone application (app) during pedicle screw placement navigation and examine the accuracy of this application on an anatomical dry vertebrae model. MATERIAL and METHODS: Seventy-six dry vertebrae were used for this study, and pedicle entry points and projections of pedicle scr...
AIM: To accurately describe the relations between the anatomical landmarks of the cranial convexity and the main cortical structures. MATERIAL and METHODS: A retrospective cross-sectional, observational study was performed. Computed tomography scans of 71 adult patients with no pathological imagin...
AIM: To investigate the outcomes and associated complications after delayed cranioplasty using autologous, cryopreserved bone. MATERIAL and METHODS: This retrospective study included 57 consecutive patients treated with cranioplasty with autologous cryopreserved bone for various conditions causing...
AIM: To determine the effects of resveratrol on inflammation and apoptosis after experimental spinal cord injury (SCI). MATERIAL and METHODS: Eighteen Sprague-Dawley rats were randomly divided into three groups. All groups underwent thoracic laminectomy. The first group received no other intervent...
AIM: To reveal the potential relationships and interactive effects between frailty and body weight and adverse surgical outcomes for degenerative spinal disease. MATERIAL and METHODS: Patients who underwent open surgery for degenerative spinal disease in our hospital were included. Data on the pa...
AIM: To determine whether the washing of implants and autogenous bone grafts with rifampicin, and the irrigation of the surgical field using diluted rifampicin, have any significant effect on the prevention of spinal implant infections. MATERIAL and METHODS: A total of 166 consecutive lumbar steno...
AIM: To investigate the expression of cancer stem cell markers in meningiomas. MATERIAL and METHODS: CD133, Nestin and Sox2 expression levels in 35 paraffin-embedded meningioma tissue samples were assessed using immunohistochemistry. RESULTS: In this study, five cases were atypical (WHO Grade II)...
AIM: To compare sinonasal complications after microscopic and endoscopic approaches for pituitary adenomas. MATERIAL and METHODS: At our clinic, sinonasal complications occurred in 31 patients who underwent microscopic transsphenoidal surgery between 2007 and 2014 and in 32 patients who underwent ...
AIM: L5/S1 Adolescent lumbar disc herniation (ALDH) is usually ignored for its low incidence. Recently, percutaneous endoscopic procedures have been widely used. To investigate the surgical techniques and clinical outcomes of percutaneous endoscopic interlaminar discectomy (PEID) in the treatment ...
AIM: To investigate the costs of treating the infection with antibiotics only with the risk of surgery when unsuccessful versus immediate removal followed by re-implantation in patients with deep brain stimulation (DBS) hardware infection. MATERIAL and METHODS: We calculated the costs of the diffe...
AIM: Dissection of white fibers is important in identifying detailed neuroanatomical relationships. With tractrography it is possible to transport and apply this knowledge in a practical way to treat many diseases involving the white matter. MATERIAL and METHODS: The Klingler method, subsequently d...
AIM: To discuss a special type of skull lesion detected after delivery. We reviewed our experience on scalp swelling in term neonates to further investigate the relationship between cranial injuries and labor process. MATERIAL and METHODS: A total of 55 newborns with scalp swellings were assessed ...
AIM: To evaluate the existence of nerve innervation of the triceps brachii muscle via the ulnar nerve and its clinical importance in terms of nerve transfer or susceptibility to iatrogenic injuries during surgical procedures. MATERIAL and METHODS: Thirty-five skeletally mature upper extremities of...
AIM: To evaluate bevacizumab for epidural fibrosis (EF) treatment in an experimental rat model using histopathology as well as immunohistochemical staining for CD105 and osteopontin (OPN). MATERIAL and METHODS: Sixteen Wistar Albino rats underwent either laminectomy alone to induce EF (group I, co...
AIM: To evaluate the cerebrospinal fluid (CSF) flow dynamics in the aqueductus sylvii of patients with obstructive hydrocephalus who underwent endoscopic third ventriculostomy (ETV) and to predict ventriculostomy patency via aqueduct flow measurements. MATERIAL and METHODS:Twenty-four patients wit...
AIM: To present our experience of 225 clipped aneurysms in 196 patients to compare indocyanine green video angiography (ICGVA), micro-Doppler ultrasonography (MDUSG), and postoperative digital subtraction angiography (DSA) in terms of determining aneurysm obliteration, neck remnants, and parent ar...
AIM: To evaluate postoperative clinical outcome and recurrence rates in cases with ventrally located spinal meningiomas who underwent Simpson grade 2 resection. MATERIAL and METHODS: We evaluated eight cases (six females and two males; age, 28?86 years; mean age, 60 years) with ventrally located ...
AIM: To investigate the clinical characteristics and prognostic factors that may influence outcomes of patients undergoing benignappearing intraspinal malignant peripheral nerve sheath tumors (MPNSTs). MATERIAL and METHODS: This study included a total of 14 consecutive patients who were diagnosed ...
AIM: To investigate the possible role of ELABELA (ELA) in the histopathological grading of gliomas. MATERIAL and METHODS: We retrospectively assessed pathological specimens of patients who underwent surgery for intracranial space-occupying lesions. Only primary glioma specimens were included in th...
AIM: To compare four different atlantoaxial stabilization techniques. MATERIAL and METHODS: Eight human cervical spines (segments C0-C3) were tested in flexion/extension, lateral bending and axial rotation. Range of Motion (ROM) at a 1.5 Nm load was recorded. After native testing, the Harms (HARMS...
AIM: Bearing in mind the association of breast cancer and meningioma, the present study aimed to investigate the levels of the soluble extracellular domain of HER2 protein in meningioma cases and control group. Besides, in the present research, its associations with pathological features and progn...
AIM: To assess treatment results of gamma knife radiosurgery (GKRS) for hemorrhagic brainstem cavernous malformations (BSCMs). MATERIAL and METHODS: A retrospective review of patients with hemorrhagic BSCMs, who were treated at the Acıbadem Kozyatagi Hospital GKRS unit from May 2007 to October 201...
AIM: To investigate the biomechanical comparison of thoracic transpedicular screw trajectories on the sagittal plane. MATERIAL and METHODS: A three-dimensional, non-linear finite element analysis (FEA) model of T8 through T9 was used. Anatomic trajectory (AT) and Straightforward trajectory (ST) mo...
AIM: To investigate a new anti-tumor treatment method using stem cells transfected with specific genes and proteins that induce apoptosis in tumor cells. MATERIAL and METHODS: We used glioblastoma (GBM) cells and human adipose tissue-derived mesenchymal stem cells (ADMSCs) in this study. The AD-M...
AIM: To summarize the imaging features of spinal peripheral primitive neuroectodermal tumor (spPNET) patients. MATERIAL and METHODS: The computed tomography and magnetic resonance imaging features of 10 spPNET patients, four men and six women, were retrospectively analyzed, and their clinicopathol...
AIM: To determine the gene expression patterns of nucleus pulposus (NP) in cell cultures obtained from degenerated or intact tissues. MATERIAL and METHODS: Whereas 12 of the cases were diagnosed with lumbar disc herniation and had undergone lumbar microdiscectomy, 12 cases had undergone traumatic...
AIM: To assess biomechanical problems related to pedicle screw (PS) systems. MATERIAL and METHODS: Functional spinal units (L3-4) of deer were evaluated using a 6-axis material testing machine. For the specimen models, we prepared an intact model, a damaged model, a PS model, and a crosslink model...
AIM: To evaluate the technique and outcome of endoscopic management of intraventricular neurocysticercosis (NCC). MATERIAL and METHODS: We retrospectively analysed the records of 30 consecutive patients of intraventricular (intra-third and fourth ventricle) NCC who underwent endoscopic management....
AIM: To examine the effects of N-acetylcysteine (NAC) alone and in combination with linezolid (LIN) and daptomycin (DAPT) on methicillin-sensitive Staphylococcus aureus (MSSA) biofilm formation. MATERIAL and METHODS: Twelve groups (each containing six molds) of standard ventriculoperitoneal shunts...
AIM: To assess the efficacy of α-tocopherol as a topical antifibrotic agent on epidural fibrosis in lumbar laminectomy procedures. MATERIAL and METHODS: A total of 32 adult rats were assigned into four groups, with eight rats in each group. Standard laminectomy was performed in every rat. In...
AIM: To compare the postoperative changes of both sagittal spinal and spinopelvic parameters in patients with Lenke Type 1 adolescent idiopathic scoliosis (AIS) who underwent selective and non-selective fusion surgery. MATERIAL and METHODS: We conducted a retrospective study among 53 Lenke Type 1 ...
AIM: To compare the complications and surgical outcomes between bilateral rotation flaps and dorsal intercostal artery perforator (DICAP) flaps in the soft tissue reconstruction of myelomeningocele defects. MATERIAL and METHODS: Between January 2005 and February 2017, we studied 47 patients who un...
AIM: To present the results of vertebroplasty for treating thoracolumbar burst fractures without neurological deficit. MATERIAL and METHODS: Twelve patients (aged ≥65 years) with thoracolumbar fractures but without neurological deficits underwent vertebroplasty. In all fracture cases, the anter...
AIM: To investigate possible correlations between serum S100B levels and microglial/astrocytic activation in status epilepticus (SE) in lithium-pilocarpine-exposed rat hippocampi and whether serum S100B levels linearly reflect neuroinflammation. Additionally, to assess the effects of minocycline (...
AIM: To investigate the impact of rizatriptan on neural tube development using early chick embryos as a model organism. MATERIAL and METHODS: A total of 36 pathogen-free Leghorn chicken eggs were selected and categorized in three groups: sham, therapeutic, and supra-therapeutic. After 24 hours, th...
AIM: To compare the effect of long and short axonal lengths on neuromuscular neurotization (NMN). MATERIAL and METHODS: In this study, 18 male Wistar rats were divided into two groups. In each group, the peroneal nerve and soleus muscle were dissected. In Group1, the muscle was neurotized after th...
AIM: To show the preliminary clinical results of the Orthrus modular dynamic stabilization system that is a new instrumentation system intended for degenerative diseases of the lumbar spine. MATERIAL and METHODS: The system utilizes two different types of screws that can be used in conjunction wit...
AIM: To provide information on the process and the results of the Turkish Board of Neurological Surgery and increase the relevant awareness. MATERIAL and METHODS: The number of applications to the written and oral board exams organized by the Turkish Neurosurgical Society Proficiency Board since ...
AIM: To compare the accuracy of determining pathologic segment between three-position MRI (3P-MRI) and post-myelographic CT (PMCT) in cervical spondylotic myelopathy (CSM) by assessing the degree of inter-observer and intra-observer agreement. MATERIAL and METHODS: We retrospectively reviewed 3P-M...
AIM: To correlate the anatomical variants of the circle of Willis with their effects on the hemodynamic and geometrical parameters responsible for the pathogenesis of neurological diseases. MATERIAL and METHODS: The circle of Willis and the proximal segments of the main arteries were dissected and...
AIM: To investigate the association between the vitamin D receptor (VDR) gene rs2228570 FokI polymorphism and the development of lumbar degenerative disc disease (LDDD) in the Turkish population. MATERIAL and METHODS: This was a prospective case-control study that included 45 patients with LDDD an...
AIM: To describe the authors' experiences with surgical excision of cerebral arteriovenous malformations (AVMs) using temporary proximal artery clipping to reduce intraoperative bleeding and excision time. MATERIAL and METHODS: Temporary proximal artery clipping was employed by the authors dur...
AIM: To summarize and calculate the accurate rate of good outcome and the prognosis, using a uniform definition of good outcome, evaluating the long-term effect of surgery. MATERIAL and METHODS: Through searching the relevant databases, we included eligible studies measuring outcomes with the mod...
AIM: To design a novel, polyvinyl alcohol (PVA)-based polymeric scaffold that permits the controlled release of insulin-like growth factor 1 (IGF-1)/bone morphogenetic protein (BMP)-2 following intervertebral disc administration. MATERIAL and METHODS: The drug delivery system was composed of two d...
AIM: To assess the health-related quality of life (HRQoL) with the Parkinson's Disease Questionnaire 39 (PDQ-39) after unilateral subthalamic deep brain stimulation (STN DBS) and to identify correlations between the changes in UPDRS (Unified Parkinson's Disease Rating Scale) scores and sep...
AIM: To investigate the mid-term efficacy of bilateral decompression with a unilateral approach (BDUA) on symptoms and quality of life of in patients with lumbar spinal stenosis (LSS), with low grade (with percentage slip 60 years) and adult (
AIM: To evaluate the resistant epileptic patients who had vagal nerve stimulation (VNS) devices implanted over five years, and to evaluate the neuropsychological aspects of VNS. MATERIAL and METHODS: Patients with pharmacoresistant epilepsy (PRE) were followed from 2012 to 2017. Totally seven pat...
AIM: To evaluate anatomical data of the bony structures during exploration of the C1-C2 complex. MATERIAL and METHODS: This study included six formalin-fixed cadaveric head and neck specimens. Radiological images and anatomical measurements included: C1-C2 distance, bony distance between C1 anterio...
AIM: To compare the clinical and radiological results of dural splitting and duraplasty in patients with Chiari Type I Malformation. MATERIAL and METHODS: This study includes 113 adult patients with Chiari Type I malformation treated between 2009 and 2013. The patients were divided into two groups...
AIM: To review our experience gained from the use of intraoperative ultrasonography (IOUSG) in intradural spinal tumor surgery. MATERIAL and METHODS: IOUSG was used during surgery of 69 intradural spinal tumors, operated on between 2012 and 2016. A 5-8 MHz probe of IOUSG was used, before and after...
AIM: To analyze the frozen section (FS) diagnostic accuracy in correlation with the final diagnosis of brain tumors. MATERIAL and METHODS: This retrospective study comprised all brain tumor cases with FS diagnosis and permanent section diagnosis in Jordan University Hospital from July 1, 2007 to D...
AIM: To determine the neuroprotective functions of quercetin and compare them with methylprednisolone in an experimental spinal cord injury model in rats. MATERIAL and METHODS: Thirty male, Wistar rats were assigned to five experimental groups: sham (n=6), trauma (n=6), methylprednisolone (n=6), ...
AIM: To assess the feasibility of the vasoactive-inotropic score (VIS) in determining the amount of vasoactive support and its relationship with the mortality rate and characteristics of the patients with traumatic brain injury (TBI). MATERIAL and METHODS: This study was conducted with a retrospec...
AIM: To evaluate the usefulness of bone scintigraphy in spinal fusion surgery. MATERIAL and METHODS: This retrospective study included 21 patients who had undergone previous anterior or posterior spinal fusion procedures, or both. Implant failure, fusion failure and adjacent segment disease were t...
AIM: To evaluate the effect of pregabalin on neural tube development using early chick embryos. MATERIAL and METHODS: Experiments were conducted on specific pathogen-free Leghorn chick embryos, which were equally divided into control and pregabalin-treated (therapeutic dose: 600 mg; supratherapeut...
AIM: To compare the results of lumbar puncture (LP) and shunt tapping in pediatric patients with suspected ventriculoperitoneal shunt infection. MATERIAL and METHODS: Medical records of pediatric patients with suspected shunt infections were retrospectively analyzed. All patients had cerebrospina...
AIM: To compare the outcomes of fluoroscopically guided transforaminal epidural steroid injections between L4-L5 paramedian disc herniation and L5-S1 paramedian disc herniation for the treatment of radicular pain. MATERIAL and METHODS: A total of 593 patients treated by transforaminal epidural ster...
AIM: To assess reliability by comparing the Full Outline of Unresponsiveness (FOUR) scores and Glasgow Coma Scale (GCS) values assigned by specialists from two different fields to patients in the Anesthesiology and Reanimation and Neurosurgery intensive care units. MATERIAL and METHODS: This stud...
AIM: To better understand the indications and the impact of antidepressant drugs on the field of neurosurgery in terms of risks and benefits in Turkey. MATERIAL and METHODS: A national survey was conducted among neurosurgeons in current practice in Turkey to report routine prescription trends of ...
AIM: To study the protective effect on motor function of intraoperative awakening and localizing the central sulcus during surgery in patients with gliomas located in motor areas. MATERIAL and METHODS: A total of 68 patients with gliomas in motor areas were intubated with a laryngeal mask and rap...
AIM: To systematically investigate the role of artificial small interfering RNA (siRNA) molecules in glioblastoma treatment and to give a detailed overview of the literature concerning studies performed in this field worldwide in the last 31 years. MATERIAL and METHODS: Articles about clinical tri...
AIM: To investigated the prevalence of anomalously originating occipital artery (OA) using angiography in a group of Turkish individuals. MATERIAL and METHODS: The images recorded in the picture archiving and communication system for a total of 114 patients, in which the whole vertebral artery, a...
AIM: To analyze the results of stereotactic radiosurgery (SRS) or surgical treatment of 18 cases with cavernous malformation and report 2 cases with unusual localization and size. MATERIAL and METHODS: We present 11 and 8 patients who underwent surgery and SRS between 2010 and 2018 respectively. ...
AIM: To identify, report, and raise awareness of the risk factors for television (TV) tip-over. MATERIAL and METHODS: In total, 86 children who were brought to the emergency service and hospitalized at the neurosurgery clinic because of TV tip-over-related head trauma between August 2011 and Augus...
AIM: To compare the effects of subthalamic nucleus (STN) and globus pallidus interna (GPi) deep brain stimulation (DBS) on the motor outcome, gait and balance function, fall risk (FR), and non-motor symptoms in patients with advanced Parkinsonâs disease (PD). MATERIAL and METHODS: We randomized...
AIM: To understand possible mechanisms underlying lacrimal gland degeneration when facial nerve root ischemia induces pterygopalatine ganglion injury and subsequent dry eye in a rabbit model of subarachnoid hemorrhage. MATERIAL and METHODS: Rabbits were divided into four groups: control, sham, mod...
AIM: To investigate the causes of recurrent trigeminal neuralgia (RTN) and to evaluate the efficacy of microvascular decompression (MVD) plus longitudinal nerve sectioning (LNS) or LNS only for RTN patients who have undergone multiple procedures. MATERIAL and METHODS: Twenty one patients underwent...
AIM: To investigate comparative efficacy of a novel absorbable adhesive membrane (TissuePatchDuralTM âTPDâ) and a fibrin glue (Tisseel âTâ) in reducing cerebrospinal fluid (CSF) leaks after posterior fossa and spinal procedures, and also to identify potential risk factors for CSF leakage. ...
AIM: To investigate the relationship between the deformity correction and subsequent alterations in spinopelvic parameters after surgical correction in degenerative lumbar spondylolisthesis patients. MATERIAL and METHODS: About 100 adult patients were recruited in the study. The eligible cases rec...
AIM: To evaluate the satisfaction of patients operated due to degenerative lumbar spinal diseases with dynamic stabilization placing polyetheretherketone (PEEK) rods and to share their radiological and clinical results (mid-term) with visual analogue scale (VAS) and Oswestry disability index (ODI)...
AIM: To evaluate the pelvic incidence (PI) of coccydynia patients treated by different methods and to determine whether it is a risk factor or a prognostic factor. MATERIAL and METHODS: Patients who were treated for coccydynia were evaluated retrospectively, and 110 patients were enrolled. Spinop...
AIM: To report the incidence and interrelationship of concomitant anomalies in congenital scoliosis (CS) patients. MATERIAL and METHODS: Whole-spine computed tomography and magnetic resonance imaging (MRI) examination, echocardiography, and renal ultrasonography (USG) evaluations of 231 patients w...
AIM: To report the four most common spinal parasites for providing insight into definitive therapy. MATERIAL and METHODS: Twelve patients with spinal parasites were diagnosed between 2009 and 2016. A definite diagnosis was established in the form of histopathology (n=9) and response to drug therap...
AIM: To investigate the frequency of lateral epicondylitis (LE), depending on the tasks performed by neurosurgeons, and to determine whether it can be accepted as an occupational disease depending on its frequency. MATERIAL and METHODS: All neurosurgery specialists enrolled in the Turkish Neurosur...
AIM: To demonstrate progression of acute and chronic endocrinopathies in a kaolin-induced hydrocephalus model using light microscopy. MATERIAL and METHODS: Adult male SpragueâDawley rats (n = 48) were divided into six groups. Hydrocephalus was induced by intracisternal injection of kaolin solut...
AIM: To investigate microelectrode recording (MER)-induced microlesion effect (MLE) on the motor symptoms of 30 patients with Parkinsonâs disease (PD) who underwent deep brain stimulation of the subthalamic nucleus. MATERIAL and METHODS: MER-induced MLE was evaluated based on the difference betw...
AIM: To examine ischemic neurodegeneration of the ciliospinal center on permanent miosis following subarachnoid hemorrhage (SAH). MATERIAL and METHODS: Nineteen rabbits were examined in this study. The animals were divided into three groups, as control (GI, n=5), sham (GII, n=5) and study group (...
AIM: To clarify the effects of topical application of curcumin on the prevention of epidural fibrosis. MATERIAL and METHODS: Twenty-one rats were randomly divided into three equal groups (control, spongostan, local curcumin) and a laminectomy procedure was performed between T11 and L1 in all rats....
AIM: To investigate the external anatomy of the fourth ventricle and dorsal brainstem using morphometric data, which could be useful for preoperative surgical planning. MATERIAL and METHODS: Between January 2017 and December 2017, 42 fresh adult cadavers were investigated for the measurements of ...
AIM: To evaluate the clinical characteristics and treatment outcomes of non-small cell lung cancer (NSCLC) patients with brain metastasis, who were treated by whole brain radiotherapy with a conventional boost at a single institution. MATERIAL and METHODS: A total of 296 patients diagnosed with NS...
AIM: To investigate the effect of dabigatran, a new oral anticoagulant, on human primary cell cultures isolated from intact intervertebral disc tissue. MATERIAL and METHODS: Cell cultures were prepared from tissues obtained from six cases who had undergone surgery due to spinal trauma. Dabigatran...
AIM: To compare neurodegenerative changes using the Fluoro-Jade B staining, following status epilepticus induced by intraamygdaloid injection of kainic acid in Genetic Absence Epilepsy Rats from Strasbourg (GAERS) and non-epileptic control Wistar rats. MATERIAL and METHODS: A single unilateral in...
AIM: To review our experience of using the endoscopic endonasal approach for clivus and odontoid pathologies as well as craniovertebral junction anomalies at our institution. MATERIAL and METHODS: We retrospectively evaluated 41 patients (21 male, 20 female; age range, 2â65 years) who underwent ...
Retraction Request Letter: https://www.turkishneurosurgery.org.tr/pdf/pdf_JTN_2901.pdf
AIM: To describe our institutionâs experience with the telovelar approach as well as factors governing radicality and outcome for pediatric fourth ventricle tumors. MATERIAL and METHODS: During March 2015âJanuary 2017, 44 children with fourth ventricular tumors were operated using the telovel...
AIM: To understand the differences between operative versus conservative treatment in terms of the outcome measured according to the American Spinal Injury Association (ASIA) impairment scale (AIS) in patients with gunshot acquired spinal cord injuries. MATERIAL and METHODS: A total of 168 patient...
AIM: To investigate the apoptotic and molecular effects of glycogen synthase kinase-3 (GSK-3) in glioblastoma multiforme (GBM). MATERIAL and METHODS: Human primary glioblastoma cell line (U-87 MG) and the human fetal glial cell line (SVGp12) were used. The cells were exposed to the different doses...
AIM: To evaluate the effects of pre- and intra-operatively administered daptomycin (DAP) on the intact human primary intervertebral disc tissue cells. MATERIAL and METHODS: Primary cell cultures were established using tissues obtained through decompressive laminectomy, traumatic intervertebral di...
AIM: To seek the efficacy of selective spinal nerve blocks in the treatment of groin pain that are irresponsive to peripheral nerve blocks. MATERIAL and METHODS: This retrospective study comprised 17 patients with ilioinguinal, iliohypogastric, and genitofemoral neuralgias treated between 2017 an...
AIM: To present the particularities of the intraorbital foreign bodies from a neurosurgical perspective by summarizing the findings of a case series. MATERIAL and METHODS: A retrospective study was conducted including a consecutive series of 30 patients with intraorbital foreign bodies treated be...
AIM: To investigate the effects of fluorescein-sodium on neural tissues. MATERIAL and METHODS: Twenty-one Wistar rats were randomly divided into three experimental groups: control (group 1) and fluorescein-sodium groups with different doses (groups 2 and 3). In the control group, craniectomy follo...
AIM: To compare the clinical and functional outcomes between combined anterior and posterior 2-segment spinal fusion and posterior 3-segment spinal fusion in patients with thoracolumbar (TL) burst fractures at risk for posttraumatic kyphosis without neurological deficit. MATERIAL and METHODS:Twen...
AIM: To present our experience on superior cerebellar artery (SCA) aneurysms treated with embolization by using current endovascular techniques. MATERIAL and METHODS: All SCA aneurysms treated by our endovascular team since 2013 were retrospectively evaluated. Clinical information and angiographi...
AIM: To assess the distribution of genetic polymorphisms of killer cell immunoglobulin-like receptors (KIRs) to predict the clinical course of glioblastoma, report on the genetic mechanisms, and provide guidance on potential therapeutic methods. MATERIAL and METHODS: Our study included 31 adult pa...
AIM: To investigate the effects of lumbar stabilization exercises on pain severity, functional disability, and physical performance after two weeks following radiofrequency denervation in patients with lumbar facet joint syndrome (LFJS). MATERIAL and METHODS: Thirty-nine patients diagnosed with LF...
AIM: To compare outcomes and complications in patients with thoracic disc herniation (TDH) undergoing surgery with either the posterior or anterior approach. MATERIAL and METHODS: A total of 86 patients, with 98 symptomatic TDHs, who underwent surgery in a single institution between 2007 and 2016...
AIM: To describe the ultrasound-guided microsurgical excision technique and to evaluate the surgical outcomes of brachial plexus schwannomas. MATERIAL and METHODS: Eleven patients who underwent ultrasound-guided microsurgery for small (
AIM: To provide measurements of the posterior cerebral circulation using a non-invasive imaging modality. MATERIAL and METHODS: One-hundred and twenty patients aged from 12 to 76 years were analyzed using computed tomography (CT) angiography. Measurements of vertebral arteries (VA), basilar artery...
AIM: To evaluate the clinical outcomes of the retrogasserian opioid application in patients with type 1 trigeminal neuralgia. MATERIAL and METHODS: A total of 37 patients (12 male, 25 female; average age 56.2 ± 5.4 years) who were administered retrogasserian opioid due to type 1 trigeminal neural...
AIM: To assess the endocrinological outcomes of high-field (1.5-T) intraoperative magnetic resonance imaging (iMRI)-guided endoscopic transsphenoidal surgery (TSS) for non-functioning pituitary adenomas (NFPAs). MATERIAL and METHODS: Radiological and endocrinological data were retrospectively coll...
AIM: To compare the clinical and economic results of two different surgical approaches (bilateral decompression via unilateral approach and instrumented total laminectomy and fusion) in the treatment of lumbar spinal stenosis. MATERIAL and METHODS: The clinical, surgical, and economic aspects of 1...
AIM: To analyze the effect of different environmental conditions on the brain in rats with subarachnoid haemorrhage. MATERIAL and METHODS: Microtubules in neurons mediate both the consciousness and memory and regulate firing. Microtubuleassociated proteins promote microtubule organisation and dyna...
AIM: To develop a new laminoplasty technique for preserving paravertebral muscles. MATERIAL and METHODS: In this technique, semispinalis and splenius muscles are cut approximately 1 cm laterally to the muscle insertion point to the spinous process at the laminotomy side. Then, multifidus and rotat...
AIM: To determine whether neuroradiological assessment of skull base and non-skull base meningioma consistency and vascularity can be used to improve the surgical approach. MATERIAL and METHODS: Forty meningioma cases were split into skull base (n=16) and non-skull (n=24) base groups, and intraop...
AIM: To compare glioblastoma multiforme with astrocytoma grade II by subjectively evaluating the levels of prothrombin and biotinylation thrombin, and G protein serum protease activatin receptors, as tissue factors causing hypercoagulation and affecting coagulation. MATERIAL and METHODS: Specimen...
AIM: To investigate the effect of using microelectrode recording (MER) on the length of time required to carry out a deep brain stimulation (DBS) procedure of the subthalamic nucleus in patients with Parkinsonâs disease (PD). MATERIAL and METHODS: The time required to include MER in the DBS oper...
AIM: To perform reliability and validity studies of the Neuropathic Pain Questionnaire (NPQ) and NPQ-Short Form (SF) in the Turkish language. MATERIAL and METHODS: The Turkish translation and cross-cultural validation were performed. Then, 101 patients (36 males, 65 females; mean age: 50.4 ± 14....
AIM: To share a single center experience with 27 atypical teratoid/rhabdoid tumor (AT/RT) cases, and to determine the effect of gross total tumor resection and other clinical characteristics on the overall survival rate of AT/RT. MATERIAL and METHODS: We included 27 patientsâwith a histopatholog...
AIM: To discuss the rationale and merit of specific pelvic sequences as an adjunct to routine lumbar magnetic resonance imaging (MRI) for early detection of piriformis syndrome (PS) and to disclose its frequency in patients who underwent radiological evaluation. MATERIAL and METHODS: This retrospe...
AIM: To determine the relationship between the serum urate (SU) level, neutrophil / lymphocyte ratio (NLR), and pain severity using preoperative and postoperative visual analogue scale (VAS) scores in patients with lumbar disc herniation (LDH). MATERIAL and METHODS: This single-center, cross-secti...
AIM: To assay the effects of simvastatin and L-carnitine on peripheral nerve repair. MATERIAL and METHODS: Left sciatic nerve of 70 female rats were cut and repaired under aseptic microsurgery. Based on medications and treatment period, seven groups were formed; control: no medication, SIM1W: one ...
AIM: To evaluate the effects of lacosamide on traumatic spinal cord injury (SCI) in rats. MATERIAL and METHODS: A total of 28 male Wistar albino rats, each weighing 300â350 g, were included. They were randomly assigned to four groups. In Group 1, only a laminectomy was performed; in Group 2, SCI...
AIM: To compare posterior surgery alone versus combined anterior and posterior surgery for the management of spinal tuberculosis. MATERIAL and METHODS: Data from 31 consecutive patients who underwent surgery for spinal tuberculosis were analyzed retrospectively. Patients were divided into two grou...
AIM: To investigate the effects of methylphenidate (MPH), on intervertebral disc tissue (IVD) cell cultures and extracellular matrix structures. Changes in the expression of some important marker genes involved in anabolic and catabolic mechanisms of IVD extracellular matrix formation were also ev...
AIM: To investigate the effects of systemic application of Theranekron on peripheral nerve healing after compression type peripheral nerve injury. MATERIAL and METHODS: Twenty-one female Wistar albino rats were randomly divided into 3 groups (n=7): Control (C), injury (I), and Theranekron (T). Th...
AIM: To evaluate the effect of umbilical cord derived mesenchymal stem cells (UC-MSCs) transplantation on traumatic brain injury (TBI). MATERIAL and METHODS: UC-MSCs were isolated from human umbilical cord and TBI rat model was constructed. 30 male SD rats were randomly divided into 3 groups: con...
AIM: To present an overview of our awake craniotomy practices performed with complementary use of diffusion tensor imaging (DTI)-based neuronavigation (DTI-bN) and cortical-subcortical electrical stimulation for glioma resection located in eloquent areas, and the clinical outcomes of these practic...
AIM: To conduct a scientometric assessment of the research activities of spinal fusion in various subspecialties carried out by different surgeons. MATERIAL and METHODS: All articles regarding spinal fusion research on Web of Science from the year 1994 to 2015 were identified and analyzed in the ...
AIM: To identify ependymoma (EPN) driver genes and key pathways, and also to illuminate the connection between prognosis of EPN patients and expression levels of driver genes. MATERIAL and METHODS: The gene expression profiles of GSE50161, GSE66354, GSE74195, and GSE86574 were analyzed to figure ...
AIM: To determine the regulation of long non-coding RNA (lncRNA) MALAT1 on neuronal apoptosis during spinal cord injury (SCI) and to explore its possible mechanisms. MATERIAL and METHODS: The motor ability of SCI rat models and apoptosis in spinal cord tissue were evaluated. Primary spinal cord n...
AIM: To determine the function of miR-384-5p in ketamine-induced neurotoxicity. MATERIAL and METHODS: Neonatal hippocampal neurons were isolated from rats and treated with varying doses of ketamine. RT?qPCR was utilized to measure the miR-384-5p level in ketamine-treated neurons. Neuronal viabilit...
This study presents the results of epiarachnoidal posterior fossa decompression for 20 adults who had symptomatic Chiari I malformation with syringomyelia, and discusses the efficacy of this technique.
The characteristics of neurogenic thorasic outlet syndrome due to compressions at the interscalene triangle were evaluated in 17 patients. Sixteen of the patients were female, and the mean age of the group was 34,6 years. Eight cases had only osseous anomalies (Group I). Another six had no bony vari...
During the last decade it has been repeatedly demonstrated that mild to moderate hypothermia (30-34 º C) reduces neurological injury in animal models of focal or global ischemia, and of traumatic injury. This has led to renewed interest in the application of hypothermia for managing head injury, str...
This report describes our experience using a combined transpetrosal-transtentorial approach to address petroclival lesions. This surgical technique provides good exposure to the cerebellopontine angle, the petroclival region, the posterior aspect of the cavernous sinus, and the upper and mid-clivus....
The neurosurgical operations used to treat various intracranial pathologies may affect the immune system in different ways. The main goal of this study was to determine whether the surgeries for intracranial aneurysm, meningioma and glial tumor cause immunodepression. In each of these three surgical...
Multilevel cervical laminectomy may cause cervical kyphosis in adults afflicted with preoperative instability or deformity in this part of the spine. The laminectomy procedure may also lead to cervical kyphosis in children who have no preoperative instability or deformity. This paper describes four ...
Extended short forms again here - same in the key words so please modify according to your journal's style the aim of this study was to determine whether or not assessing cell kinetics by argyrophilic nucleolar organizer region counting, and using immunohistochemistry to detect proliferative cell nu...
Detailed knowledge of the microneuroanatomy of the skull base enables the neurosurgeon to make more aggressive surgical approaches. The most important goal in skull base surgery is minimizing retraction of the brain tissue, since excessive retraction may lead to cerebral contusion, intracerebral hem...
The surgical management of patients with symptomatic carotid stenosis in combination with one or more incidental intracranial aneurysms is problematic. We discuss this issue with reference to two cases, and in light of the relevant literature. Our conclusion is that the best management plan is aneur...
In fetal neural tissue transplantation, lack of oxygen supply to the graft in the acute stage is an important problem. This study evaluated the effects of hyperbaric oxygen treatment on fetal spinal cord grafts. Spinal cord tissues obtained from 16-day fetal rats were transplanted to the spinal cord...
The far-lateral transcondylar approach is the method of choice for accessing lesions of the lower clivus, anterior foramen magnum, upper cervical spine and ventrolateral brainstem. This approach requires rapid identification and mobilization of the vertebral artery. in this article, we describe our ...
The ventriculoperitoneal shunt is accepted as the simplest and most effective treatment for hydrocephalus. The major problem with these devices is obstruction of the proximal end of the tubing. In this study, we examined deposıts in the proximal ends of Codman shunts from 20 of our patients whose ca...
This study investigated a possible connection between the facial nerve and/or its chorda tympani branch, and the tympanic plexus with the aim of defining some of the innervation of the middle ear mucosa. The study involved 20 locally bred male and female Wistar albino rats that were 2.5 to 3-months ...
A major retrospective study of head injury was done on patients admitted over a 13-year period whose clinical records were complete. A total of 583 computerized tomography seans were evaluated, and these indicated that 9 patients had asymmetric skull conformation. Six of these nine were cases of sur...
Fourteen pediatric patients with spinal dysraphism and associated mild spinal deformities underwent multilevel laminotomy in the years 1993 through 1998. At the time of surgery, the 8 male and 6 female patients ranged from 0 to 2 years of age, and their mean age was 5.3 months. All were evaluated us...
It is generally believed that the rate of pseudoarthrosis rises as the number of operative levels of anterior cervical discectomy and fusion increases. This retrospective study evaluated bone union status in 13 patients who underwent three-Ievel anterior cervical discectomy and fusion with the Clowa...
Tarsal tunnel syndrome involves compression of the posterior tibial nerve due to trauma, repetitive microtrauma, ankle fracture, tumors of the tuımel contents, and systemic diseases including ankylosing spondylitis, uremia, and rheumatoid arthritis. The symptoms are focal pain, and paresthesia over ...
Surgical treatment of movement disorders, and especially Parkinson's disease, is regaining momentum. Despite all efforts, a significant number of patients who suffer from various types of movement disorders are becoming surgical candidates. Recent advances in medical technology have enabled more pre...
To report our experience with a series of consecutive patients with brain metastases, who underwent gamma knife radiosurgery during a 3 year period and to assess the prognostic significance of primary cancer type, number of intracranial lesions, and tumor locatian with regard to survival. We also ex...
Neoplasms of glial origin constitute 40-50% of all primary tumors of the central nervous system. Although a number of clinical features are related to prognosis, tumor grade is currently used to predict outcome. However, at present, grading is a subjective process based on tumor morphology and quant...
Neuron-specific enolase (NSE) is a mitochondriaI enzyme that is found at high levels in neurons. Changes in NSE levels maY provide quantitative information about the extent of certain types of neurological injury, including cerebral infarction, subarachnoid hemorrhage, intracerebral hemorrhage, cınd...
The aim of this study was to investigate whether expanded polytetrafluoroethylene (ePTFE) grafts prevent peridural fibrosis (PF). Seven adult dogs were anesthetized with an intramuscular injection of xylazine + ketamine HCI, and were operated on between L5 and S1 via a posterior approach. Total lami...
Lesions in the extradural middle and upper clival region, including the posterior cavernous sinus, and those in the infratemporal and middle fossa areas can be accessed by the subtemporal preauricular infratemporal approach. This method requires drilling of the petrous bone and clivus, and mobilizat...
The histopathological diagnoses for a series of hypodense non-enhancing lesions were established through computed tomography (CT)-guided stereotactic brain biopsy. The aim was to retrospectively assess how well the imaging-based diagnoses correlated with the histological diagnoses in these cases.
This retrospective study investigated the outcomes of surgical therapy in 14 patients with advanced ulnar neuropathy at the elbow. We evaluated patients clinically and electrophysiologically pre- and postoperatively. The mean follow-up was 43.8 months. The gender distribution in the group indicated ...
The aim of this study was to demonstrate posterior, postero-lateral, lateral, antero-lateral and anterior approaches to the brainstem, and to discuss the indications for each approach. Twenty cadaver head specimens (40 sides in total) were used bilaterally to demonstrate different approaches to the ...
Male rats underwent hypophysectomy and graft procedures, and a normal control group (C) was also established. In the hypophysectomy-plus-pituitary graft (HG) group, a suspension of neonatal rat pituitary cells (cortical cells in the hypophysectomy-plus-cortical graft [CG] group) was implanted into t...
In this study twenty-one brains (42 sides) and 5 cadavers (10 sides) were studied especially for surgical anatomy of the superior cerebellar artery. The superior cerebellar artery is the most constant and least anomalous artery arising from the vertebrobasilar system. The superior cerebellar artery ...
The medical records of 154 children with solid malignant primary tumors outside the central nervous system were retrospectively reviewed to achieve a better understanding of the incidence, presentation, outcome and treatment options for metastatic spinal cord disease. Of the 154 total, 12 children h...
Cauda equina syndrome due to posterior epidural migration of an extruded dise fragment is extremely rare. This report describes such a case in a 36 year-old male with disc fragment extrusion at the L4-5 intervertebral space. We discuss the case and review the relevant literature.
OBJECTIVES: To assess the disability level and quality of life of the patients who had been reoperated and not reoperated because of lumbar disc herniation. METHODS: 34 reoperated and 34 not reoperated patients with lumbar disc herniation were retrospectively included in the study. The disability l...
OBJECTIVE: The aim of this paper was to address the management of acute facial nerve paralysis after temporal bone fracture and the outcomes of late decompression. METHODS: The study design was a retrospective review of eight patients who underwent late decompression of acute facial nerve paralysis...
OBJECTIVE: To investigate motor evoked potentials during short term La rginine infusion in cerebral vasospasm after experimental subarachnoid hemorrhage. METHODS: Three groups were designated for this study: control group, subarachnoid hemorrhage-saline infusion group, and subarachnoid hemorrhage-L...
OBJECTIVE: Hunterian ligation of the internal carotid artery is an acceptable treatment modality for inoperable intracranial carotid aneurysms. Despite the risk of thrombo-embolic complications, ligation together with superficial temporal artery-middle cerebral artery (STA-MCA) bypass surgery is vit...
"We were and are a peaceful people. We even welcomed the wasichu [white man]. Only when we saw them building roads, forts, killing off the game, committing buffalo genocide, when we saw them ripping off our land for gold, only then did we realize that what they wanted was our land. They took away ou...
Objective: Recent studies of iron mechanism in the brain have indicated that there may be a relationship between transferrin receptor (TfR) expression and histological malignancy._ TfR expression may also reflect cell proliferation. We investigated TfR staining intensity in intracranial meningiomas,...
Objective: The effects of lifarizine (RS-87476) and nimodipine on lactate concentrations in ischemic forebrain were evaluated in a rat model of bilateral carotid artery ligation. Methods: Eighteen rats were randomly assigned to three groups (control, lifarizine treatment, and nimodipine treatment)....
Objective: Choroid plexus neoplasms originate from choroid plexus epithelium. They are classified as papillomas and carcinomas histopathologically. The aim of this study is to discuss the signs, symptoms, treatment modalities and surgical results of this entities. Method: Ten cases of choroid plexu...
Objective: Computer-assisted stereotactic frameless navigation techniques are used in many centers for intracranial neurosurgical procedures. In this study, we assessed the accuracy and the clinical usefulness of a frameless system based on the optical digitizer in a variety of intracranial procedur...
Objective: The neuroprotective effects of ebselen were investigated in a rat spinal cord trauma model. Methods:Thirty-six Wistar albino rats were studied in four groups of nine animals each: sham-operated controls; trauma-only controls; and two ebselen treatment groups (administered 1 hour after inj...
Endoscopic third ventriculostomy is becoming more popular as an alternative to shunting in the management of obstructive-type hydrocephalus. The goal of this procedure is to fenestrate the floor of the third ventricle between the mamillary bodies and the infundibular recess, and thus establish flow ...
Objective: The aim of this study is to evaluate retrospectively the results of 37 patients who underwent anterior cervical corpectomy due to cervical spine fractures and fracture-dislocations. Methods: Skeletal traction with skull tongs was applied in 24 patients who had fracture-dislocations prior...
Objective: The prognostic value of initial computed tomography (CT) findings in cases of traumatic acute subdural hematoma (ASDH) is unclear. The aim of this study was to investigate relationships between initial CT findings and outcome in this patient group. Methods: Sixty-five cases of traumatic ...
Objective: In order to study clinical, histomorphological, histochemical and immunohistochemical characteristics in hyperproloactinemic patients, we undertook a comparative study of 30 pituitary adenomas. Methods: We used a group of nuclear, cytoplasmic and staining parameters for the evaluation o...
Objective: Many cases of large hemispheric infarction are associated with early death due to massive edema, increased intracranial pressure, and subsequent uncal herniation. If medical therapy fails to lower intracranial pressure in a stroke patient, surgical decompression by large craniectomy may b...
Giving opportunity to avoid placement of shunt systems, endoscopic third ventriculostomy (ETV) has revolutionized the management of hydrocephalus. With increasing experience, indications for ETV are being continuously reviewed and expanded. We report a retrospective analysis of our experience with 4...
Objective: There has been much progress in spinal surgery over the past two decades. These advances have increased the quality and number of spine-related studies, and the number of papers presented at annual meetings of neurosurgical societies. The Spinal Surgery Section (SSS) of the Turkish Neuros...
Object: Free oxygen radicals play a major role in the pathophysiology of central nervous system (CNS) trauma, neurodegeneration and aging. Aminophylline, an antiasthmatic drug, was shown to exert some free radical scavenging effect on lung tissue. The purpose of this study was to investigate the fre...
Objective: Damage to the vascular endothelium is considered to be an important factor in the development of cerebral vasospasm after subarachnoid hemorrhage. Studies have shown that hemolysate causes structural and functional injury in cultured cerebral endothelial cells. Mexilitine is an anti-arrhy...
Objective: Neuroendoscopic aqueductoplasty presents an effective alternative to third ventriculostomy for the treatment of hydrocephalus caused by stenosis of the aqueduct of Sylvius. There have been few reports in the past decade with promising results. Here we report our preliminary experience, de...
Objective: The aim of this study was to examine sialic acid levels in brain tissue with vasogenic edema due to experimental focal freeze injury. Methods: Thirty-seven male Wistar-Albino rats were divided into an edema group (n=30) and a control group (n=7). Animals in the edema group were subjecte...
Objective: Cranial defects and their optimum reconstructions have been a deal in neurosurgical practice. In the recent time, we used porous polyethylene implants for cranioplasty to provide better cosmetic, surgical and long-term safety results. Material and method: Porous polyethylene implants (M...
OBJECTIVE: We designed this experimental study to examine the potential positive influences of the acetylated derivative of acetyl-L-carnithine, an endogenous substance present in the nervous system, on chronic compression neuropathy. This is the first study ever published on the medical treatmen...
OBJECTIVES: Recent studies have revealed that nitric oxide (NO) in concert with lipid peroxidation (LP) may play an important role in pathophysiological mechanism(s) of cerebral ischemia. In addition, hyperglycemia exaggerates the pathological changes during cerebral ischemia. The purpose of this...
OBJECTIVE: The purpose is to evaluate the functional recoveries obtained through the pysiotherapy program started in the early postoperative period with the patients with SAH, and then advanced after being discharged. MATERIAL AND METHODS: Home Exercise (HE) (n=54) was Group I, and the Regular S...
BACKGROUND: The aim of this study was to compare neuropsychological outcome at 1-year follow-up in patients with medically refractory unilateral mesial temporal lobe epilepsy (MTLE) due to hippocampal sclerosis (HS) treated by a cortico-amygdalohippocampectomy (CAH) or a selective-amygdalohippoca...
OBJECTIVE: We have conducted a prospective study to evaluate the results and effectiveness of bilateral decompression via a unilateral laminectomy in 50 patients with 98 levels of degenerative lumbar spinal stenosis without instability. METHODS: Clinical outcomes were assessed using the Visual An...
OBJECTIVE: We developed an instrument (a dissector tool with micro- vibrating system) to make make brain tissue dissection easy and safe. METHOD: We used this instrument and conventional technique to dissect 18 fresh cadaver sheep brains (9 of them were dissected by the vibrating-dissection tech...
OBJECTIVE: The vertebral body is the major load bearing part of the vertebra and consists of a central trabecular core surrounded by a thin cortical shell. The aim of this in vitro biomechanical study is to determine the debated issue of load sharing in a vertebral body. METHODS: A series of non...
A retrospective study was conducted to assess the surgical outcomes of degenerative lumbar spinal stenosis. Thirty-four patients treated with decompressive surgery in Departments of III. Neurosurgery, Bakırkoy Hospital for Psychiatric and Neurological Diseases between 2000-2004 were reviewed. There ...
AIM: This study was designed to determine the hemodynamics of cerebrospinal fluid flow in syringomyelia patients associated with Chiari I malformation using phase-contrast velocity-encoded-cine MRI and also to find out whether treatment outcomes may be predicted by these flow measurements. MATERIAL...
OBJECTIVE: The aim of this clinical study was to evaluate the benefits of ultrasonographic imaging in the surgical treatment of lower extremity peripheral nerve lesions. METHODS: Peripheral nerves in the lower extremity were evaluated by using real-time utrasonographic examination. The capabilty...
OBJECTIVE: In the present study, the clinical effectiveness of a surgical procedure in which no draining tubes are installed following simple burr hole drainage and saline irrigation is investigated. METHODS: 10 patients, having undergone operative intervention for unilateral chronic subdural he...
AIMS: The goal of this clinical study was to evaluate the capability of intraoperative ultrasonographical examination to demonstrate the sectioning of the transverse carpal ligament during open surgical treatment of carpal tunnel syndrome with limited uni skin incision (mini skin incision technique)...
AIM: The purpose of this study was to investigate the time course(s) of the cerebrospinal fluid and serum chitotriosidase changes in patients with aneurysmal subarachnoid hemorrhage and to show whether cerebrospinal fluid and/or serum chitotriosidase levels might be used as a specific marker for ...
OBJECTIVE: The current progress in diagnostic and screening methods and surgical equipment technologies facilitates the accessibility to numerous anatomic structures through various interventional approaches. Consequently, the exact knowledge of the anatomic locations of neurovascular structures ...
AIM: The aim of this clinical study was to evaluate the benefits of ultrasonographic imaging in the surgical treatment of upper extremity peripheral nerve lesions. MATERIAL and METHODS: Peripheral nerves in the upper extremity were evaluated by using real-time ultrasonographic examination. The ca...
AIM: Computerized tomography (CT) has been the primary diagnostic instrument of neurosurgical centers for head injury until now. However, there is a subgroup of patients who have persisting neurological deficits without visible pathology on CT. MATERIAL and METHODS: Between 2000 and 2002, 3000 pa...
AIM: Efficacy of DWI in detecting ischemic injury following anterior communicating artery aneurysmal SAH is studied MATERIAL and METHODS: In this prospective study ,16 patients within 5 days of their ictus were included. Preoperative CT scan excluded an intracerebral infarct; an angiogram determ...
OBJECTIVES: Radiological imaging techniques provide early detection of neurological diseases but they do not always provide an adequate and reliable diagnosis. With the help of stereotactic biopsy techniques, it is possible to access brain lesions safely and with high precision. We described the ...
AIM: The aims of this clinical study were to describe the segments and the inferior boundaries of the odontoid process as regards the embryological development of C2 based on the magnetic resonance imaging finding. MATERIAL and METHODS: Cranial and cervical magnetic resonance images including oc...
AIM: Cerebellar mutism is a documented complication of posterior fossa surgery in pediatric ages. Risk factors such as the type of tumor, size, and location of tumor, hyrdrocephalus, postoperative cerebellar swelling for cerebellar mutism were investigated in this study. MATERIAL and METHODS: A ...
OBJECTIVE: Various types of revascularization surgery have been performed for moyamoya disease, and there have been controversies about the surgical procedures. In this report, we introduce our surgical strategy of moyamoya disease and discuss the various surgical procedure options. METHODS: The...
AIM: The purpose of this prospective clinical study was to examine the short- and long-term psychosocial outcomes of a consecutive series of patients who underwent extratemporal lobe resection due to medically-refractory epilepsy. MATERIALS and METHODS: The sample consisted of 23 consecutive pati...
The aim of this study was to investigate the effect of bispectral index (BIS) monitoring on hemodynamic parameters, drug consumption and awareness during total intravenous anesthesia (TIVA) with remifentanil and propofol in lumbar discectomies. After institutional ethical committee approval, ASAI...
BACKGROUND: The invocation Namu Amida Butsu (Nembutsu), voices the hope of rebirth into Amida's Pure Land. In the Nembutsu, Buddhists imagine that they are absorbed into Amida's Pure Land. Shiritori, a Japanese word chain game, is a common task used to activate language related regions in Japanes...
OBJECTIVE: Atlantoaxial instability may result from various pathologic conditions and operative treatment may be required to correct the deformity, provide stability and prevent neurological deficits. We presented our clinic's experience using C1-C2 fusion with polyaxial screw and rod fixation fo...
AIM: Although the neuropathology of ischemic nerve fiber degeneration is relatively well known, its pathogenesis is poorly understood. Local cytokines, which have neuroprotective effects on inflammation and repair, participate in the process by undefined mechanisms. In this study, we evaluated th...
OBJECTIVE: Adenosine and nitric oxide (NO) are known as vasodilatators. We investigated adenosine deaminase (ADA) activity and NO concentration in the cerebrospinal fluid (CSF) of patients with subarachnoid hemorrhage (SAH). METHODS: Forty patients with SAH and 10 controls were included in the st...
AIM: HI (hypoxic–ischemic) brain injury is a major cause of neonatal mortality and longterm neurological morbidity. The aim of the present study was to investigate the effects of HPC (hypoxic preconditioning) on the oxidative-antioxidative status in the neonatal HI brain model. MATERIAL an...
OBJECTIVE: The report aimed to present the outcome of surgical management of spinal synovial cyst. Methods: The study was a retrospective review of six patients surgically treated between January 2005 and September 2007. The patients were evaluated in preoperative and postoperative periods. Evalu...
OBJECTIVE: Hypersecretion of prolactin (PRL) by lactotroph cells of the anterior pituitary may lead to hyperprolactinemia in physiological or pathological conditions. However, some of the patients may present with another cause of hyperprolactinemia, described by various authors as macroprolactin...
Intracranial berry aneurysms are the most common kind of aneurysms in the brain, and are caused by head trauma in 1% of cases. They may remain asymptomatic for a long time or may rupture and cause intracranial hemorrhage. These aneurysms are associated with a high mortality rate. A definitive di...
AIM: Surgical resection of lesions involving the dominant supplementary motor area (SMA) may result in immediate postoperative motor and speech deficits which in most cases are reversible.We report 12 patients with frontal lesions involving the SMA and aim to analyse the clinical data and the cor...
OBJECTIVE: Five large myelomeningocele defects repaired by bilateral fasciocutaneous flaps are presented in this article. PATIENTS and METHODS: After the neurological repair, bilateral fasciocutaneous flaps were raised, transposed over the midline, and sutured to each other. RESULTS: All oper...
AIM: Hyperpolarization-activated cyclic nucleotide-gated (HCN or h-channel) channels mediate hyperpolarization-activating currents in the hippocampus and neocortex. The aim of this study is to present prenatal h-channel gene expressions (HCN1 and HCN2; HCN1-Entrez-Gene ID: 84390; HCN2- Entrez Gene I...
AIM: In this report, we aim to determine the prognostic factors influencing the length of survival in patients with low-grade gliomas. MATERIAL and METHODS: In a retrospective evaluation, we have reviewed fiftythree patients who had been operated between the years of 1980 and 2006. The diagnoses...
AIM: Optimal surgical pathway for lateral ventricle tumors is still controversial. The purpose of this study is to discuss the factors that affected the preference of the surgical techniques for removing lateral ventricle tumors. MATERIAL and METHODS: 46 consecutive patients underwent operation f...
BACKGROUND: Nogo-A is a myelin-associated neurite outgrowth inhibitory protein that limits elongation of central nerve fibers, neuronal regeneration and plasticity. We investigated the effect of delivering an inhibitory peptide that neutralizes Nogo-A on neuronal recovery following mild cortical ...
OBJECTIVE: In this report, we aimed to investigate the patients that presented at our clinic complaint with diplopia due to the abducens nerve palsy and neurosurgical disease. METHODS: The study design was a retrospective review of ten cases with the abducens nerve palsy. The causes of the abduc...
OBJECTIVES: Temporal lobe epilepsy is the most common form of intractable partial epilepsy in adults with hippocampal sclerosis accounting for the majority of cases. Selective amygdalo-hippocampectomy (SEAH) is suggested as a safe and effective surgical procedure with the advantage of a better co...
BACKGROUND: Different data exist regarding long-term visual prognosis associated with suprasellar meningiomas. The aim of this study was to determine the outcome of suprasellar meningiomas with respect to short and long-term visual outcomes. METHOD: During the period of 1997 to 2006, 45 patients ...
AIM: The shunt infection rates vary from 2 to 39% among complications related to shunts used for hydrocephalus treatment. Shunt infections are reported to be more common than any other etiologies in newborn babies with myelomeningocele. MATERIAL and METHODS: In this study, we performed a retrospe...
OBJECTIVE: The aim of this presentation is to show that the sublabial transseptal transsphenoidal approach to pituitary adenomas is the least invasive anatomic route with the lowest postoperative complication rates. PATIENTS and METHOD: This study was based on a retrospective analysis of 276 pat...
AIM: To provide information related to atypical language activations (right or bilateral) in positron emission tomography in patients with left clear-cut hippocampal sclerosis. MATERIAL and METHODS: Twelve right-handed patients who had been operated on left-sided hippocampal sclerosis and 12 righ...
AIM: We aimed to evaluate the relevant methods of stereology to estimate cerebellar asymmetry according to gender in both adult right-handed vertigo cases and healthy cases. MATERIAL and METHODS: The study included 14 adult control subjects and 18 patients with vertigo. The volumes of the cerebe...
AIM: The aim of carotid endarterectomy (CEA) is the successful removal of the atherosclerotic plaque and meticulous anatomical and physiological reconstruction of the carotid artery without any perioperative complications. Endarterectomy can also be carried out with regional anesthesia, which all...
AIM: This study is plained to determine the intellectual skill difficulties and attention problems of hydrocephalic children, and to compare them to children with attention deficit hyperactivity disorder (ADHD). MATERIAL and METHODS: The Wechsler Intelligence Scale for Children-Revised (WISC-R) ...
AIM: Aspiration of the abscess cavity versus excision of capsule are still in debate for the capsulated, large, superficially located abscesses. MATERIAL and METHODS: Twenty patients who had large, solitary, capsulated, and superficially located lobar abscesses were analyzed retrospectively to co...
AIM: The aim of this study was to demonstrate the morphological characteristics of the connections between the spinal accessory nerve and the anterior root of the first cervical nerve (C1) which is also called the McKenzie branch. MATERIAL and METHODS: The cranial cervical regions of 49 specimen...
AIM: The masseter muscle is often exploited by craniofacial surgeons in transposition operations to correct facial palsy, benign masseteric hypertrophy; or neurectomy-induced atrophy of the muscle. A clear understanding of the course of the premasseteric branch of the facial artery and its relati...
The carpal tunnel syndrome is the most common nerve entrapment syndrome. Many different methods have been described for treatment. We performed a novel method to release the carpal tunnel. Subsequently, we compared the surgery results of this novel limited incision technique and the standard lon...
AIM: The purpose of this study was to retrospectively evaluate the efficacy of the developed by the authors surgical technique in patients with a radiographically confirmed diagnosis of sagittal craniosynostosis. MATERIAL and METHODS: 34 children with scaphocephaly underwent surgical treatment w...
BACKGROUND: The use of lamina as a graft for fusion in isthmic lumbar spondylolisthesis (LIS) is not known. In the present prospective clinical study, we used the laminoplasty technique and reported on its outcomes. MATERIAL and METHOD: Twenty cases that have been operated in our clinic due to G1...
OBJECTIVE: Cervical laminoplasty is an effective procedure. We describe the technique of open-door and french-door cervical laminoplasty and present our clinical results. METHODS: All patients undergoing laminoplasty at our clinic during the 1997- 2008 period were included in the study. All pati...
BACKGROUND: Biomechanical benefits of Total Disc Replacement (TDR) including both the restoration of normal segmental range of motion and the prevention of physiological lumbar lordosis encourage spine surgeons to perform TDR for lumbar disc disease. METHODS: Atotal of twenty patients (mean age: ...
AIM: Meningiomas arise from the meningoendothelial cells and are one of the most common tumors of the central nervous system. The HER-2/neu gene is located on the 17q11.2-q12 chromosome region and encodes an epidermal growth factor receptor. HER- 2/neu gene amplification and/or over expression ha...
OBJECTIVE: The sciatic nerve (SN) separates into its branches, the tibial and common fibular nerves, outside the pelvis. However, it may rarely be separated within the pelvis. In such cases, the tibial nerve and the common fibular nerve may leave the pelvis through different routes. These variati...
AIM: To investigate the correlation of congenital lumbosacral abnormalities with neurological signs in young patients with low back pain (LBP) MATERIAL and METHODS: The study included 401 patients with LBP that lasted longer than 2 weeks. All cases were screened by standard lumbosacral x-rays for...
OBJECTIVE: The optimal treatment modality for traumatic spondylolisthesis of the axis is still a controversial issue. Many conservative, posterior and anterior fixation techniques have been used to treat these injuries. The C2 pars (isthmus) was used as a novel screw anchor point in upper cervica...
BACKGROUND: Colloid cysts are benign intracranial lesions but can show signs of severe obstructive hydrocephalus and present with sudden death. The approaches to colloid cysts have been described by many authors. The treatment modalities can be classified as endoscopic and microsurgical. Bilatera...
AIM: Head trauma is associated with an acute phase response which is characterized by leucocytosis due to increased levels of catecholamine and cortisol. Early edema formation following severe head injury may also be associated with microglia activation. Therefore, increased white blood cell (WB...
AIM: Traumatic brain injury (TBI) caused by a gunshot wound is a complex injury with a broad spectrum of symptoms and high rates of mortality and morbidity. This study presents an evaluation of TBI caused by gunshot wounds presenting at a single institution and discusses possible predictive facto...
AIM: Nicotine is a well-known agent among 4000 chemicals in cigarettes. About 70 to 80% of nicotine is converted to cotinine, a major metabolite. The aim of the present study is to investigate the effect of cotinine on neural tube development in a chick embryo model. MATERIAL and METHODS: Sixty ...
AIM: Recent experimental and clinical studies on Parkinson's disease point out the pivotal role of inflammation in the pathogenesis of neurodegeneration and the possible positive effects of nonsteroidal anti-inflammatory drug therapies. Our aim in this study was to investigate the preventive effe...
AIM: To recognize the endoscopic anatomy of the surgical corridor along the nasal cavity, sphenoidal sinus and the sellar area to delineate the pure endoscopic endonasal transsphenoidal approach (EETSA) to the region of the pituitary gland. MATERIAL and METHODS: The endoscopic anatomy of the nasa...
AIM: To investigate the feasibility of placing a screw in the C2 lamina and evaluate the reliability of the surface of the dorsal arch of C2 as a landmark for determining the optimal site of screw entry. MATERIAL and METHODS: 88 adult human C2 spines were used. Seven measurements were determined...
OBJECTIVE: Our aim in this study was to identify the endoscopic anatomy of the anterior cranio-vertebral junction to be able to perform minimal invasive endoscopic surgical procedures to this region (such as dens resection) safely with better postoperative performance of the patients. MATERIAL a...
AIM: In this study, we examined the results of utilizing the agile posterior dynamic stabilization system with dynamic transpedicular screws in our patients. MATERIAL and METHODS: Posterior dynamic instrumentation with agile rods and dynamic transpedicular screws was employed in 15 (seven male an...
AIM: To investigate the relation of depression and pain-related disability associated with Low Back Pain (LBP). MATERIAL and METHODS: The Quebec Back Pain Disability Scale, Visual Analogue Scale (VAS) and Zung Depression Scale were sent to 3800 randomly select adults in Kayseri, Turkey. The demo...
AIM: Although an aneurysmal rupture typically presents on computed tomography (CT) imaging as only a subarachnoid hemorrhage (SAH), it may be associated with spontaneous (nontraumatic) subdural hemorrhage (sSDH). The purpose of this paper is to discuss the clinical and radiological characteristic...
AIM: Primary intraventricular hemorrhage (PIVH), bleeding in the ventricular system without a recognizable parenchymal component, is a rare neurological disorder. The purpose of this study was to identify clinical features, risk factors, etiology and outcome of patients with PIVH. MATERIAL and M...
OBJECTIVE: Atlantoaxial stability can be achieved by laminar hook systems via posterior approach. This technique is much more safer than using screws. We presented our experience with the C1-C2 claw procedure. METHODS and MATERIAL: Seven patients with atlantoaxial instability were operated by us...
AIM: Increasing use of surgical magnification for operations in the territory of the anterior choroidal artery (AChA) has created a need for detailed knowledge of their anatomical variations. The aim of the present study is to examine the anatomical variations of the AChAin patients operated via ...
AIM: A rat model of spinal cord ischemia/reperfusion was conducted and the serum cytokine levels and histopathological changes were assessed. MATERIAL and METHODS: Twenty-four male Sprague-Dawley rats were assigned into four experimental groups. Group-A (the sham operated rats) and group-B (the s...
AIM: Nitrogen Mustard (NM) is an alkylating agent that damages cellular nuclear DNA after penetrating tissue. This results in cytostatic, mutagenic and cytotoxic effects. We used the electron microscope to investigate the effect of NM gas administered through the dermal and respiratory routes to ...
AIM: Previous studies demonstrated that mexiletine has some important features in the prevention of ischemic brain injury such as sodium and calcium canal blockage and free radical occurrence. Our aim was to investigate the effects of mexiletine on ischemic brain injury. MATERIAL and METHODS: Ex...
AIM: Our aim in this study was to investigate the efficacy of intravenous administration of cilostazol and compare these effects with intravenous usage of nimodipine in subarachnoid hemorrhage model. MATERIAL and METHODS: Twenty-five male New Zealand White rabbits were assigned randomly to 1 of ...
AIM: Endothelin-1 (ET-1) has been implicated in the pathophysiology of cerebral vasospasm. Chloride (Cl-) channels exist in vascular smooth muscle and activation of these channels leads to depolarization and contraction. The aim of the present study was to test the effect of 5-nitro-2-(3-phenylpr...
AIM: Epidural fibrosis following a laminectomy procedure is a serious problem that results in failed back surgery syndrome. Aserious number of manuscripts have explained its possible mechanism and results but no effective preventive surgical technique or treatment is currently present. MATERIAL ...
AIM: Smoking is an extremely important risk factor for subarachnoid hemorrhage and seems to increase rupture risk of unruptured aneurysms by accelerating their growth rate. The aim of the study was to investigate the effect of smoking on the luminal diameter with wall thicknesses of rat basilar a...
PURPOSE: Spinal dysraphisms are the most common congenital anomalies of the CNS. Spinal dysraphism (SD) of cervical and upper thoracic region are rare, demonstrating distinct clinical and structural configurations compared to lumbar counterparts. METHODS: In Haydarpasa Numune Hospital, a total o...
AIM: Apoptosis after cerebral ischemia/reperfusion (I/R) injury leads to the process of cell death. The deal therapeutic approach would target the apoptosis after I/R. Ischemic postconditioning is a recently discovered neuroprotective strategy that involves the application of brief mechanical rep...
AIM: This study aimed to investigate the 677C>T and 1298A>C MTHFR gene polymorphisms and their metabolic effects on the levels of folate, vitamin B12 and homocysteine in the serum of Turkish spina bifida occulta (SBO) patients and healthy individuals in disease. MATERIAL and METHODS: A case-cont...
AIM: This study was planned for detailed evaluation of electrophysiological findings in patients with adult TCS. MATERIAL and METHODS: Patients were retrospectively assessed for clinical, radiological and electrophysiological data between 1999 and 2008. Tibial somatosensorial evoked potentials, ...
AIM: To assess sample volume (by its length and diameter) and sample quality (judging by its integrity) in CT-guided vertebral biopsy due to lesion location and needle trajectory method as individual study variables each. MATERIAL and METHODS: Of 48 patients, 25 were men and 23 were women; rangin...
OBJECTIVE: A prospective clinical follow-up study of patients who underwent thoracolumbar intraspinal surgery with replacement of the posterior spinal arch and supporting elements is reported. PATIENTS and METHODS: The surgical procedures of 45 patients who underwent intraspinal surgery with ost...
AIM: Despite being a minimally invasive procedure, serious perioperative complications are reported during neuroendoscopy, largely generated by its unique surgical maneuvers. We report here the complications of elective neuroendoscopic surgery for the treatment of hydrocephalus and other intraven...
AIM: Knowing the location of the transverse sinus in the midline supracerebellar infratentorial approach is important to prevent its inadvertent injury. The external landmarks of the occipital bone have been studied in this anatomic study in order to reveal their relationship with the transverse ...
AIM: The purpose of this study was to investigate the effect of mexiletine on the neural function and histopathological changes after ischemic spinal cord injury in rabbits. We also compared the effect of mexiletine to that of methylprednisolone. MATERIAL and METHODS: Twenty six male New Zealand ...
AIM: To investigate the effects of melatonin and octreotide in the prevention of peridural fibrosis in an experimental rat model. MATERIAL and METHODS: A total of 36 rats were divided into three groups: Group I was laminectomized and not given any treatment. Group II received an intraperitoneal ...
AIM: Lipid peroxidation (LP) is an important factor in tissue damage following head injury. Reactive oxygen radicals which damage cellular components play an important role in ischemic or hypoxic tissue. They initiate the lipid peroxidation process after head trauma. However, antioxidant agents m...
AIM: The aim of this study is to demonstrate the effect of meloxicam in early stage chick embryos on neural tube development. MATERIAL and METHODS: One hundred specific pathogen-free (SPF) chicken eggs were used to investigate the neurulation. SPF eggs were invastigated in four groups (n:25). Al...
AIM: Glioblastoma is the most common and highest-grade infiltrative astrocytoma. It is usually associated with a bad prognosis. Histological grading is highly predictive of an aggressive behavior, with a mean survival rate of 1 year. Nonetheless, individual patient survival can vary substantially...
AIM: Management of Vertebral Artery (VA) dissections remains controversial. The clinical and angiographic variables of VA dissections were evaluated to demonstrate the safety and efficacy of endovascular intervention in treatment of VA dissecting aneurysms. MATERIAL and METHODS: 25 patients with...
AIM: To reevaluate the Concorde position with different surgical interventions to the posterior fossa and cervical pathology and to improve patient comfort in the Concorde position through obtuse angle placement of the three-pin holder while the patient is in the supine position. MATERIAL and ME...
AIM: The brachial plexus (BP) has a complex structure and risky relations with its neighborhoods. This study was designed to investigate and overcome the morphometric features of the BP and the difficulties regarding surgery of BP lesions. MATERIAL and METHOD: Twelve BP of six adult cadavers wer...
AIM: To explore a method to obtain sub-millimeter data of the thin transverse section of the pterygopalatine fossa (PPF), and to study the thin transverse sectional anatomy of the adult pterygopalatine fossa and its communicating structure for providing anatomic gist for the imaging diagnosis and...
Aneurysmal subarachnoid hemorrhage (SAH) is a devastating neurological disease that has a mortality rate as high as 67% in some series. Traditional research and treatment has focused on addressing the delayed events of cerebral vasospasm following SAH. However, the physiological and cellular even...
AIM: Lateral orbitotomy is a well-known approach for lesions of the lateral orbital cone. It is still appropriate for laterally situated tumors although contemporary cranial base approaches were defined and developed within the last decades. MATERIAL and METHODS: Here we report 10 orbital lesion...
AIM: Spinal Cord Injury (SCI) is routinely treated with standardized methyl prednisolone sodium succinate (MPSS) dose, so it is reassuring to find its effects on liver. We also evaluated the effects of albumin and immunoglobulin G (Ig G) therapies on liver if they are used in case of experimental...
AIM: To investigate the relationship between health locus of control and quality of life in patients with chronic low back pain. MATERIAL and METHODS: Pain intensity by visual analog scale, quality of life related to health by the World Health Organization Quality of Life (WHOQOL) assessment and...
AIM: The aim of this article is to describe the microsurgical anatomy of the cavernous sinus, the triangles, and the osseous relationships in the region with special attention to the relationships important in surgical approaches on the intracavernous structures. MATERIAL and METHODS: Fifty cave...
Fusion surgeries are still the gold standard in the treatment of the degenerative spine. Spinal fusion has some problems, however. Adjacent segment disease, donor place ailment, and the morbidity of the surgery has emerged as important problems over the years. As a consequence of such complicatio...
AIM: Intracranial hypodense lesions include a wide group of pathologies with different structures and characters. Although the radiological imaging properties of these neoplastic and non-neoplastic lesions are similar, treatment modalities for each lesion differs due to histopathological structur...
AIM: This study presents a Turkish academic database application platform which is specialized for spinal surgery clinics. The application provides a userfriendly interface and easy access to the patients' data due to a hierarchical structure. Patient diagnosis, treatment and follow-up process da...
AIM: Surgical approach to the upper thoracic spine diseases is challenging since anterior interventions to this region are quite complicated with the presence of major vascular elements or important visceral and soft-tissue structures. MATERIAL and METHODS: Operative technique was performed initi...
AIM: Protein kinase-C (PKC) and NF-kappaB are involved in cell survival, proliferation, migration and radioresistance in glioblastoma multiforme (GBM). We sought to determine the interaction between PKC and NF-kappaB pathways. MATERIAL and METHODS: The activation of NF-kappaB by PKC α and P...
AIM: The objective of this study was to investigate whether the transplantation of fetal umbilical cord tissue cells as a source of stem cells into the acutely injured spinal cord would produce some regenerations and/or functional recovery in a rat model of spinal cord injury. MATERIAL and METH...
AIM: CT-guided stereotactic methods have long been used for the diagnosis and treatment of intracranial masses. Intracranial tuberculoma is a rare form of extrapulmonary tuberculosis. Histological confirmation is the gold standard for a correct diagnosis. However, histopathological diagnosis and ...
AIM: There have been several treatment modalities to reduce the volume of the syringomyelic cavity and the pressure on the brainstem in Chiari Malformation Type I (CM-I). Foramen magnum decompression with and without duroplasty were compared in this retrospective study. MATERIAL and METHODS: Fr...
AIM: This study was done to study the three dimensional anatomy of internal capsule's white fibers completely by cadaveric dissection and its relation to basal ganglia and other related anatomical structures. MATERIAL and METHODS: Eight formalin fixed cerebral hemispheres were dissected for int...
AIM: The petrosphenoidal ligament (PSL, or Gruber‘s ligament) is located between the petrous apex (PA) and posterior clinoid process (PCP). Details of its anatomy are conflicting in the few studies that exist in the literature. We performed this study to describe in detail the microanatomic...
AIM: Coccydynia is a painful condition affecting quality of life. The majority of patients can be successfully treated by non-surgical means. Chemical neurolysis, cryoablation and radiofrequency thermocoagulation (RFT) of ganglion impar are also used in the treatment of visceral pelvic pain. We a...
AIM: The authors compared the incidence of radiologically documented and/or symptomatic adjacent segment degeneration in and between patients who underwent anterior or posterior single-level, simple discectomy. MATERIAL and METHODS: 79 patients were clinically and radiologically examined for ad...
AIM: Combined analgesic regimens produce sufficient analgesia by additive or synergistic effects, and reduce the total dose of analgesics and minimise adverse effects. We investigated the metamizole, paracetamol and morphine combination with respect to postoperative pain treatment in lumbar disc ...
AIM: More than two thirds of cerebral cavernomas are located supratentorially. The transsulcal approach without excision of the perilesional gliotic parenchyma and simple lesionectomy are keys to surgery on eloquent areas. MATERIAL and METHODS: We present 11 supratentorial cerebral cavernomas o...
AIM: Mini incision techniques for carpal tunnel release have become increasingly popular for the treatment of carpal tunnel syndrome. The main advantages of mini incision techniques are shorter recovery and return-to-work time. However, the risk of neurovascular injury still remains worrisome. We...
AIM: Epilepsy is a temporary electric discharge in the brain cells due to shortterm brain function disorder. Epileptic seizures mostly stem from the temporal lobe. The prevalence is the same for women and men. It is thought that there are both microscopic- and macroscopic-level localized changes ...
AIM: This paper aimed to provide information related to surgical and neurological complications encountered following intracranial electrode placements in patients with medically intractable epilepsy. MATERIAL and METHODS: Retrospective review of 70 patients with either subdural grid/strip or d...
AIM: Minimally invasive surgery is currently a goal for surgical intervention in the spine. The effectiveness of endoscopic thoracic spine surgery and technological improvements are two factors that are always under consideration in the practice of spinal surgery. MATERIAL and METHODS: We prese...
AIM: Debate continues as to whether decompressive craniectomy (DC) is an effective treatment for severe traumatic brain injury (STBI). DC is mostly used as a second tier treatment option. The aim of this study was determined whether early bilateral DC is effective as a first tier treatment option...
Aim: A prospective observational study of the in-hospital outcome of the management of BSF without antibiotic prophylaxis in a Nigerian neurosurgical unit. Material and Methods: All cases of HI with clinical diagnosis of BSF over an 8-month period were reviewed. Their demographic, clinical, and ...
Aim: We examined the clinical progress of low back pain and radicular pain during the premenstrual period in patients with lumbar disc protrusion and discussed the probable effective physiopathological mechanisms and laboratory results reported in the literature. Material and Methods: Fifty fema...
Aim: In this study, we aimed to investigate the effect of repetitious concussions on the spatial learning and memory function in rats. Material and Methods: 46 adult, male Sprague-Dawley rats were assigned to three homogenous groups by stratified random sampling according to their basal performa...
Aim: The microanatomy of the abducens nerve (AN) is important for clinical reasons and surgical approaches as it is located in the petroclival region. The incidence of branching and duplication of the abducens nerve are unknown and mechanisms relating to paralysis of the nerve in indirect conditi...
Aim: Epidural fibrosis is an important factor for postoperative failed back syndrome development and causes clinical complaints in 6-25% of cases. An effective treatment modality has not been found yet. The aim of this study is to investigate the anti-adhesive effects of a novel agent chitin and ...
Aim: Vertebroplasty (VP) and kyphoplasty (KP) are minimally invasive methods for the treatment of vertebral compression fractures (VCF). In this study, we aimed to present our experience with VP and KP performed under local anesthesia and percutaneously. Material and Methods: Between 2002 and 20...
Aim: To explore the effect of nerve regeneration through repairing the defect of sciatic nerve in rats with the combination of optimized acellular allogeneic nerve and autologous neuroma. Material and Methods: 30 SD rats were randomly divided into two groups A and B, with 15 in each, which were ...
Aim: The tethered cord syndrome refers to a variety of lesions that can cause the conus medullaris to be low-lying or incapable of movement within the spinal canal. Permanent or temporary neurological complications were reported following surgical release. In this report, peri- and postoperative ...
Aim: Topical hemostatic agents are widely used in brain surgery but they have some disadvantages such as foreign body reaction, being a focus for infection and causing artifacts in radiological examinations. The purpose of this study is to compare the effectiveness and safety of microporous polys...
Aim: Lumbar degenerative disc disease (DDD) is a common disease of advanced age characterized by progressive changes in the intervertebral disc and associated structures. There have been great efforts for years to explain its pathophysiological mechanism(s). This study aims to provide cytokine pr...
Aim: Pedicle screw instrumentation is widely used in the lumbar spine as a means of stabilization to enhance arthrodesis and has gained acceptance in the thoracic spine in recent years. The purposes of this study were to determine the incidence of screw misplacement, complications, the accuracy a...
AIM: Experimental and clinical studies have revealed that hippocampal DBS can control epileptic activity, but the mechanism of action is obscure and optimal stimulation parameters are not clearly defined. The aim was to evaluate the effects of high frequency hippocampal stimulation on cortical epi...
AIM: The aim of this study is to define the position of surgery preference in the treatment choice for spontaneous intracerebral hematoma (ICH) and to compare the efficacy of surgery with the medical treatment based on data from 18 previously reported randomized prospective studies on this topic. ...
AIM: Cervical disc herniation at C2-C3 level is an uncommon condition. In this paper, the management C2-C3 disc herniation and long-term follow-up data of 5 cases is reported. MATERIAL and METHODS: 1100 patients who have been operated in our department for cervical disc herniation between 2000 and...
AIM: Cerebellar astrocytomas are benign tumors of the central nervous system. They represent 10% of all pediatric intracranial brain tumors and 30% of all pediatric posterior fossa tumors especially in the first two decades of life. MATERIAL and METHODS: We reviewed the medical records of patients...
AIM: Cyclooxygenase-2 (Cox-2) appears to play a role in the regulation of progression, invasiveness and angiogenesis of various neoplasms. Experimental studies have indicated that COX-2 regulate angiogenesis by modulating vascular endothelial growth factor (VEGF) production. The aim of this study ...
AIM: The objectives were to find the incidence and topography of the occipital emissary foramina in skulls of South Indian Region. MATERIAL and METHODS: In the present study, 78 dried adult human skulls were examined. They were analyzed for the gross incidence and position of the occipital emissar...
AIM: To study the clinicopathological aspects of primary CNS lymphoma in immunocompetent patients. MATERIAL and METHODS: Sixteen patients with primary CNS lymphoma were analyzed for their clinico-pathological characteristics and followed-up for the treatment and subsequent management in Neurosurge...
AIM: To assess the long-term outcomes of percutaneous retrogasserian glycerol rhizotomy (PRGR) in patients with medically unresponsive idiopathic trigeminal neuralgia. MATERIAL and METHODS: A total of 3370 patients undergoing PRGR between 1983 and 2003 in our hospital were followed up for 13.1 yea...
AIM: Surgical outcome for giant intracranial aneurysms (GIA) is suboptimal. Reasons for higher complication rates in large and GIA surgery are the occlusion of perforators or parent arteries during aneurysm clipping, or prolonged temporary occlusion of main arteries. In this article, results of cl...
AIM: Spasticity is associated with various neurological conditions. Intrathecal baclofen (ITB) is one of the popular treatments for severe spasticity. In this paper we present our experience in treating 30 patients with both spinal and supraspinal spasticity with chronic infusion of Baclofen to ev...
AIM: CSF shunt failure is still a frequent problem in children. This prospective study was designed for focusing symptoms and reasons of shunt failure. We also especially focused on the mechanical reasons of shunt failure. MATERIAL and METHODS: We focused on the causes of shunt failures, and the s...
AIM: Spontaneous pyogenic spinal epidural abscess (SEA) is a rare condition but might be devastating and fatal. Traditional treatment is surgical decompression and antibiotics. A retrospective study was designed to assess the eff ect of clinical findings and treatment methods on the outcome. MATE...
AIM: The value of neuronavigation in cranioorbital neurosurgery is controversial and relatively unstudied. The aim of this study was to evaluate the application, the usefulness and the reliability of neuronavigation in the neurosurgical treatment of orbital tumours. MATERIAL and METHODS: A framele...
AIM: To investigate the feasibility of noncontrast computed tomography (NcCT) and perfusion CT (PCT) in the assessment of head deceleration injury (HDI). MATERIAL and METHODS: A small animal HDI device was developed. A total of 20 healthy adult rabbits with frontal impacts resulting from a 3.5 m ...
AIM: Low back pain (LBP) is a common symptom that causes enormous social, psychological, and economical problems. We studied LBP occurrence in a group of young adults referred to an army hospital for a planned health check and evaluated possible causative factors by prospective questionnaires. MA...
AIM: To describe effectiveness of deep brain stimulation of subthalamic nucleus (DBS STN) on physical, emotional, cognitive functions and daily activities in Parkinson's patients. MATERIAL and METHODS: Ten patients (51.20 ±10.20 yr.) were assessed three times. The Time Up and Go Test, 12 m Walking...
AIM: Although surgery is the most effective means of eliminating or reducing seizures in cases of medically refractory epilepsy, the expected or unexpected surgical complications must also be kept in mind in order not to decrease patients' quality of life. The aim of this present study was to asse...
AIM: The correlation between hematoma volume and outcome in ruptured arteriovenous malformations (AVM) with accompanying posterior fossa hematoma was retrospectively evaluated. MATERIAL and METHODS: Microsurgery operations were performed on 127 patients with intracranial AVM between January 1998 a...
AIM: Many direct and indirect surgical intervention methods have been defined for the treatment of moyamoya disease. Indirect surgical procedures have been increasingly used. In this study, indirect surgical intervention methods especially used in combination with pial synangiosis were assessed to...
The purpose of the present study was to describe a new minimally invasive surgical technique for decompression of the ulnar nerve at the elbow for treatment of cubital tunnel syndrome. Four patients underwent surgical treatment for cubital tunnel syndrome. Preoperative clinical states were classif...
AIM: To evaluate the efficacy and safety of surgery for lumbar disc herniation in patients aged 80 or older. MATERIAL and METHODS: Operative time (OT), intraoperative estimated blood loss (EBL), length of hospital stay (LOS), and complication rate (CR) were used to assess safety of surgery. The Vi...
AIM: Releasing the carpal tunnel for Carpal Tunnel Syndrome (CTS) is the most common surgical procedure in neurosurgical practice. In this study, we aimed to analyze the outcome of patients operated on for carpal tunnel syndrome using a limited uni skin incision. MATERIAL and METHODS: Between June...
AIM: The foramen magnum (FM) is a unique and complex anatomical region. The occipital condyle (OC) and jugular tubercle (JT) are the main bony structures which obscure the anterolaterally situated lesions of the FM.The aim of this study was to revisit the anatomy of the FM region and assess variat...
AIM: The aim of this study was to investigate the effects of impulse noise on the epithelial cells of the choroid plexus. MATERIAL and METHODS: Forty Sprague Dawley rats were used and divided into the 2 groups as control and study groups. In the control group, the rats did not suffer noise injury....
AIM: Aim of this study is to assess effects of parenteral nutritional support with fish-oil emulsion on spinal cord recovery in rats with traumatic spinal cord injury. MATERIAL and METHODS: For 5 days after SCI rats were received saline in group C and Omegaven in group O. Locomotor strengths (BBB ...
AIM: In this study, we aimed to show the neuroprotective effects of AT III and Enoxaparin after severe traumatic brain injury. MATERIAL and METHODS: The animals were divided into four groups as Group 1; control group, Group 2; trauma group, Group 3; AT III group and Group 4; Enoxaparin group. Seve...
AIM: In traumatic brain injury (TBI) patients, it is desired to monitor the intracranial pressure (ICP) to assess the cerebral haemodynamics and guide the therapy. The study was designed to see if the pulsatility index (PI) measured by transcranial Doppler ultrasonography (TCD) predicts informatio...
AIM: The aim of the present study is to analyze the effects of the MRI features on the recurrence time and prognosis, and to emphasize the analyses of mortality risks in malignant astrocytomas. MATERIAL and METHODS: The effects of preoperative MRI features on prognosis were studied for follow-up p...
AIM: AVM because of outstanding tendency toward bleeding, even though 20 times more rare then aneurysm on the blood vessels of the brain and her own specific anatomical structure even today represents big neurosurgical challenge. MATERIAL and METHODS: Series which is shown here consists of 39 pati...
AIM: Examining lumbar repositioning error (RE) using a tape measure in nonspecific low back pain (NLBP) and control groups and determining whether RE is different in subjects with nonspecific back pain than in controlled subjects. MATERIAL and METHODS: The study was totally applied to 36 subjects ...
AIM: The restoration of disc space height of fused segment is essential in anterior lumbar interbody fusion, while the disc space height in many cases decreased postoperatively, which may adversely aggravate the adjacent segmental degeneration. However, no literature available focused on the issue...
AIM: Anterior plagiocephaly usually occurs with premature synostosis of the ipsilateral half of the coronal suture. The forehead is flattened on the affected side, with a backward and upward displacement of the affected orbit. The bulging of the calvaria may occur in the contralateral parietal are...
AIM: Tuberous sclerosis complex has shown a wide variety of clinical, pathologic and radiologic manifestations. Many tumor types are found in tuberous sclerosis, which includes subependimal giant cell astrositoma. The aim of this study is to focus on surgical timing of the tumor. MATERIAL and METH...
AIM: The purpose of this prospective study was to describe memory problems of adult patients with hydrocephalus. MATERIAL and METHODS: The research group consisted of healthy adults (control group) and hydrocephlic adults (hydrocephalus group). The hydrocephalus group (n: 19) had no clinical signs...
AIM: There are two major problems for the pituitary adenomas invading the Cavernous Sinus (CS); differentiation of extension and invasion and inability to demonstrate the medial wall via preoperative imaging methods. Two important corridors are defined in endoscopic cavernous sinus approaches; the...
AIM: Cerebral digital subtraction angiography (DSA) is an invasive procedure and may cause inflammatory responses in the body. This study aims to provide cytokine and lymphocyte profile in a population of patients underwent cerebral DSA. MATERIAL and METHODS: Forty-one male patients who admitted f...
AIM: To describe imaging findings of cerebral hydatid cysts on computed tomography of brain. MATERIAL and METHODS: We retrospectively reviewed CT scans of brain in 5 patients with pathologically confirmed hydatid cysts in cerebral hemispheres. The patients were scanned either on a spiral (single s...
AIM: The effect of memantine administration on hippocampal neurons of the infantile rats with kaolin induced hydrocephalus was investigated. MATERIAL and METHODS: Hydrocephalus was induced by injecting kaolin into the cisterna magna of 3-weeks old Sprague-Dawley rat pups. One group received a sing...
AIM: Fenestration of Liliequist membrane (LM) during endoscopic third ventriculostomy (ETV) is extremely important for the success of the procedure. It is noteworthy that LM usually shows a tough and dense stucture in long-standing hydrocephalus cases different from its usual arachnoidal membrane-...
AIM: Glutamate is known to be neurotoxic at concentrations of 10-6M and 10-7M. Angiotensin converting enzyme (ACE) inhibitors can be assumed to be neuroprotective as they open the mitochondrial adenosine triphosphate-sensitive potassium channels by inhibiting the degradation of bradykinin. In this...
AIM: We aimed to show the significance of the anterior pontine membrane as a determining structure between the subdural and subarachnoid space in the clival region. MATERIAL and METHODS: Five adult cadaver heads and five cerebral hemispheres were used. The skull vault and hemipheres were removed ...
AIM: To note the morphological variations and morphometric details of foramina ovale in dry adult skulls of Indian origin. MATERIAL and METHODS: 82 dry adult human skulls of unknown sex and of Indian origin were obtained and variations in appearance and number of foramen ovale were noted. The len...
AIM: To study the incidence of accessory foramina transversaria in cervical spine and to analyze them morphologically with emphasize on their embryological and surgical importance. MATERIAL and METHODS: The study included 363 human cervical vertebrae which were procured from the bone collections o...
AIM: Surgical removal of spinal meningiomas is usually not difficult. In neurosurgical practice, their locations and growing patterns may affect surgical results. Ventrally located and en plaque meningiomas may not be removed totally. The aim of this study was to present the results of surgery in ...
AIM: In utero irradiation models induce diffuse neuronal damage. Experimental studies have shown that hyperthermia induced seizures are easily elicited and have high mortality accompanied by neuronal loss. Neuronal damage and loss are the results of cell death coupled with cortical development in ...
AIM: Nitrogen Mustard (NM) is an alkylating agent that damages cellular nuclear DNA after penetrating tissue. This results in cytostatic, mutagenic and cytotoxic effects. We used biochemical analyses to investigate the effect of NM gas administered through the dermal and respiratory routes, on the...
AIM: Zygapophysial joints have been a well-recognized source of low back pain. This paper compares the efficacy of lumbar zygapophysial joints blockage and medical therapy in terms of pain relief, loss of working days and recurrence of pain in a population with mechanical low back pain. MATERIAL ...
AIM: Cerebro-spinal fluid (CSF) leakage caused by defects on the dura mater after trauma or some neurosurgical interventions is an important issue. In this study, we investigated the effects of local and systemic use of phenytoin sodium on dural healing. MATERIAL and METHODS: Thirty-six male Wista...
AIM: We examined whether vasospasm of choroidal arteries (ChAs) may be resulted in ischemic injury in choroid plexus (CP) after subarachnoid hemorrhage (SAH). MATERIAL and METHODS: This study has been conducted on 30 rabbits. Eight, fourteen and eight of them were used as control, SAH and SHAM gr...
AIM: Synovial cysts are relatively common in the lumbar spine and very uncommon in the cervical spine. Several case reports and a few small series have been reported in the literature over the past four decades. There are two distinct cervical spine synovial cyst categories: atlantoaxial and the s...
AIM: To determine the incidence of metopic suture in Indian human adult skulls and to study their morphology. MATERIAL and METHODS: The study included 81 human adult dry skulls which were obtained from the neuroanatomy laboratory of our institution. The skulls were macroscopically inspected at the ...
AIM: To assess the efficacy of the far lateral approach, without drilling of the occipital condyle, in the management of anterior intradural tumors at the craniocervical junction. MATERIAL and METHODS: Ten patients suffering from foramen magnum tumors were operated upon via the far lateral approac...
AIM: Genetic absence epilepsy rats from Strasbourg (GAERS) provide a model of absence epilepsy. Although excessive GABA mediation within the thalamo-cortico-thalamic circuit has been shown to play a role in absence epilepsy, neuronal networks of hippocampus have recently received attention. Glutam...
AIM: The aim was to clarify the anatomical features of the superior and anterior inferior cerebellar arteries in relation to the trigeminal nerve and acoustic-facial complex and to the bony structures of the skull in a sample of male Iranian cadavers. MATERIAL and METHODS: Bilateral dissections, c...
AIM: Surgery is the treatment of choice for children who had tethered cord syndrome (TCS). However, a detailed technique for the release of spinal cord is not described yet. The aims of this study are to present our series of TCS in children and to focus on the details of surgical technique. MATERI...
AIM: Chronic subdural hematoma is a frequently encountered entity in neurosurgery in particular in elderly patients. There in a high variance in the treatment in literature. MATERIAL and METHODS: We report our experience of percutaneous evacuation of chronic subdural hematoma in 28 patients. RESU...
AIM: The aim of this study is to determine the effects of a strong dithiol antioxidant, alpha lipoic acid (ALA) on cerebral vasospasm following subarachnoid hemorrhage in a rabbit model. MATERIAL and METHODS: Twenty-one New Zealand white rabbits were assigned to one of three groups: group 1 (contro...
AIM: Foramina transversaria (FT) are located on the transverse processes of cervical vertebrae. These foramina are known to exhibit variations with regard to size, shape and may even be absent or duplicated. The aims of this study are to investigate the shape, size and variations of FT in an ancient...
AIM: Anterior cervical fusion procedures are among the most commonly performed spinal operations. Investigators have reported pseudoarthrosis rates ranging from 3 to 36% following anterior cervical fusion operations. The diagnosis of pseudoarthrosis has been based on the triad of pain, radiographic ...
AIM: Knowing the distance between the superior and inferior border of Parkinson's triangle and the location of the abducent nerve within the cavernous sinus is important to decrease the complications which may occur during surgery. We aimed to investigate the cavernous sinus to decrease the complica...
AIM: Concordance of EEG findings and MRI is best correlated with favored surgical outcome in patients with unilateral mesial temporal sclerosis (MTS). If there is no evidence for unilateral focus with scalp EEG, invasive recordings are undertaken. In this report we describe the investigation process...
AIM: Stereotactic placement of the permanent deep brain stimulating electrode can be based upon imaging guidance with or without microelectrode recordings (MER). MATERIAL and METHODS: We conducted a retrospective study of 20 PD patients who underwent bilateral pallidal DBS placement with MER. There...
AIM: The aim of this study was to determine the relationship between ischemic neurodegeneration, of the petrosal ganglion of the glossopharyngeal nerve, and BP fluctuations, after subarachnoid hemorrhage (SAH). MATERIAL and METHODS: Twenty-four rabbits had their blood pressure and heart rhythms st...
AIM: Occlusion of the middle ferebral artery in rats may cause secondary injury that is not associated with middle ferebral artery feeding zone. This entity has been investigated very rarely. MATERIAL and METHODS: HE staining method observed the changes of cerebellar cortex after MCAO operation. El...
AIM: To evaluate the long-term outcomes for the surgical treatment of thoracic and thoracolumbar spinal tuberculosis with anterior radical debridement and reconstruction with titanium mesh cages (TMCs). MATERIAL and METHODS: 69 patients with thoracic and thoracolumbar spinal tuberculosis were retro...
AIM: Histopathological diagnosis is always necessary to make an effective treatment plan for intracranial mass lesions. This study aimed to evaluate the diagnostic efficacy, and associated mortality and morbidity of CT-guided stereotactic biopsy procedures in a large number of patients with intrac...
AIM: The aim of this study is to evaluate the changes between the initial and late cranial CT scans in patients with mild-to-moderate head trauma. MATERIAL and METHODS: Of the two thousand six hundred and forty-four patients hospitalized for head trauma within a two-year period, 112 (4.24%) patie...
AIM: Spinal cord injury (SCI) leads to an inflammatory response that generates substantial secondary damage within the tissue besides the primary damage. Ghrelin, 28 amino-acid peptide, has been shown to modulate the release of proinflammatory cytokines and exert antiinflammatory effects. The aim ...
AIM: There is no clear knowlegde in the literature about two-level vertebral corpectomy using the iliac bone crest for fusion and rigid plate fixation. We present our experience with two-vertebral level cervical corpectomy and reconstruction. MATERIAL and METHODS: Each patient was graded according...
AIM: In recent decades, considerable progress has been made in diagnosis and management of cranial trauma patients. Computed Tomography has resulted in a revolution in head injury diagnosis, making it possible to detect cases suitable for surgical treatment in a rapid, non-invasive manner. We pres...
AIM: The aim of our study was to examine the effects of the use of Transcutaneous Electrical Nerve Stimulation (TENS) in patients who had undergone spinal surgery on pain, functionality, depression and consumption of analgesic agents. MATERIAL and METHODS: Fifty-Four patients were randomized and p...
AIM: Aim: To confirm and compare the therapeutic efficacies and adverse effects of Chinese botulinum toxin type A (CBTX-A, Lanzhou Biological Products Institute, China) and current Botox (Allergan Inc., CA, USA) in the treatment of blepharospasm (BS) and hemifacial spasm (HFS). MATERIAL and METHOD...
AIM: Postlaminectomy epidural fibrosis is the formation of scar tissue over the dura mater following posterior spinal surgery. This devastating complication is responsible for the substantial amount of failed back syndromes. MATERIAL and METHODS: Twenty male Wistar-Albino rats each weighing 350-40...
AIM: The sitting position is routinely used in many centers, although its use remains controversial and appears to be diminishing because of the risk of venous air embolism (VAE). MATERIAL and METHODS: This is a retrospective analysis of 601 adult and 91 pediatric cases underwent neurosurgery from...
AIM: NKN reduces brain edema, neuronal death and neurological deficits in rats after cerebral ischemia. In the present study, we investigated whether NKN was effective on brain injury in cerebral ischemia rats. MATERIAL and METHODS: The middle cerebral artery occlusion (MCAO) model was used to pro...
AIM: To describe the effect of high dose progesterone (HDP) alone, or in combination with folic acid (FA), on occurrence of neural tube defects (NTDs) in chick embryo. MATERIAL and METHODS: 60 Fertile, specific eggs of Fyoumi species of chick were selected at zero hr of incubation. They were incub...
AIM: The aim of the retrospective study was to compare the clinical efficacy of the traditional way of aspiration and the modified way of aspiration. MATERIAL and METHODS: Clinical data of total 159 patients with spontaneous intracerebral hemorrhage treated by traditional (group A, n=66) or modif...
AIM: Treatment options for idiopathic intracranial hypertension (IIH) are lumbar peritoneal shunt (LP), optic nerve fenestration, ventriculoperitoneal shunt and venous stenting. We report our experience of 24 cases of LP shunt. MATERIAL and METHODS: All the patients had preoperative fundus examina...
AIM: To explore the causes of scalp wound infection, pathogen distribution, characteristics of antimicrobial susceptibility and therapeutic measures following craniocerebral trauma caused by the 2008 Wenchuan earthquake. MATERIAL and METHODS: We retrospectively analyzed the microbiology records of...
AIM: To evaluate the effectiveness of microvascular-decompression (MVD) or MVD+partial-sensory-rhizotomy (PSR) on the treatment of primary trigeminal neuralgia (TN). MATERIAL and METHODS: 210 TN patients were retrospectively studied, among which there're 142 cases underwent MVD and 68 cases under...
AIM: We present our experiences in the management of extradural haematoma in children which involved an aggressive diagnostic approach, prompt surgical evacuation results in an excellent outcome. MATERIAL and METHODS: 170 EDH patients who underwent surgery in our department from January 2006 to Ju...
AIM: The management of intraoperative bleeding during removal of a large hyper vascular meningioma is crucial for safe and efficient surgery. Preoperative embolization of meningioma is the best way to reduce vascularity of meningiomas but this technique is not readily available, costly and has its...
AIM: The aim of implantation of interspinous device is to unload the facet joints, restore foraminal height and provide stability in order to improve the clinical outcome of surgery. MATERIAL and METHODS: After microsurgical decompression, Coflex™ device was applied. Patients were evaluated ...
AIM: To better understand the characteristics of familial intracranial aneurysms (FIA) and to investigate the yield of screening in asymptomatic, at-risk individuals in intracranial aneurysm (IA) families within the Turkish population. MATERIAL and METHODS: We identified six families in which at l...
AIM: The topography of the superficial peroneal nerve (SPN) and its terminal branches were studied, with the aim of providing further anatomical details for leg and foot in the Turkish newborn fetuses. MATERIAL and METHODS: Limbs from twenty newborn cadavers were dissected. The course of the SPN o...
AIM: Endonasal transsphenoidal approaches are getting rapidly popular in removing many midline skullbase lesions from crista galli to foramen magnum. For safe removal of these lesions, familiarity with endoscopic endonasal anatomy of circle of Willis is very important. Furthermore, for safe develo...
AIM: Particulate matter is an important air-pollutant and its toxicity has been reported. Diesel exhaust particles (DEP) constitute a large portion of particulate matter. Therefore, we established our study to investigate the effects of DEP on neural tissue in early stage chicken embryos. MATERIAL...
AIM: Surgeons make up a unique group that is at risk for developing work-related musculoskeletal symptoms. The purpose of this study was to evaluate the effect of Kinesiotape technique on pain and functional performance in surgeons who have musculoskeletal system pain after performing surgery. MA...
AIM: Glioblastoma multiforme in the motor area is the surgical challenge because of the need for more radical resection in order to extend the life of the patient, and the risk that radicalism could lead to additional neurological deficit. MATERIAL and METHODS: We present series of 26 patients wit...
AIM: The purpose of the current study was to evaluate the methods and results of endovascular treatments for distal posterior cerebral artery (PCA) aneurysms. MATERIAL and METHODS: We studied 10 patients admitted to our hospital, of which 6 had aneurysms at the P2 segment (2 were saccular, 2 were...
AIM: Endoscopic third ventriculostomy (ETV) is currently considered the best alternative to shunt systems in the treatment of triventricular hydrocephalus. However, there has been very few published data about the anaesthetic management and the complications of ETV procedure in infants. In this re...
AIM: Our goal was to investigate the long-term results of anterior lumbar interbody fusion combined with percutaneous pedicle screw fixation for degenerative lumbar instability. MATERIAL and METHODS: Forty-seven patients that had undergone anterior lumbar interbody fusion combined with percutaneou...
AIM: Our aim was to evaluate the safety and efficacy of the novel crescent-shaped PMMA strut for anterior spinal reconstruction and fusion in patients with thoracolumbar bust fractures. The surgical results using this technique are reviewed. MATERIAL and METHODS: Six patients suffering thoracolumb...
AIM: Peripheral nerve regeneration is often blocked by scar formation and misdirection of axon sprouts. The aim of this study is to evaluate electrophysiological and histopathological effects of low-dose radiation therapy on the prevention of intraneural scar formation in peripheral nerve injury. ...
AIM: A unilateral subfrontal interhemispheric transfalcial approach for the removal of olfactory groove meningiomas (OGM) was evaluated in terms of surgical technique, complications, clinical outcomes, and recurrence rate. MATERIAL and METHODS: Twenty-four females and eighteen males with a mean ag...
AIM: To evaluate the effectiveness of transforaminal epidural steroid injection (TFESI) for lumbar radiculopathy with respect to effect of injection levels, gender, and age group. MATERIAL and METHODS: Hundred-fifty-three consecutive patients who underwent to lumbar TFESI were enrolled. The outcom...
AIM: After acute spinal cord injury (SCI), a large number of axons are lost by a cascade of pathophysiological events known as a secondary injury. The main aim of the current study was to investigate the potential neuroprotective effects of curcumin on lipid peroxidation (LPO), neurological functi...
AIM: To investigate the effects of emergency burr hole drainage for acute subdural hematoma (ASDH) with bilateral non-reactive pupils. MATERIAL and METHODS: A retrospective study was conducted by reviewing medical records from 1998 to 2007. Patients meeting the following criteria were included: 1)...
AIM: The study was conducted to compare the clinical effectiveness of FJ injections (FJI) and FJ radiofrequency (FJRF) denervation in patients with chronic low back pain. MATERIAL and METHODS: This study included 100 patients; 50 in FJI 50 in FJRF group. VNS, NASS and EQ-5D were used to evaluate t...
AIM: This study aimed to analyze the effect of rat bone marrow-mesenchymal stem cells (rBM-MSCs) delivery on lesion site after spinal cord injury, and to observe the functional recovery after transplantation. MATERIAL and METHODS: MSCs were isolated from rat femurs and tibias. The experimental rat...
AIM: Use of intraoperative MRI (iMRI) is the highest contemporary supportive means for brain tumor surgery. In this article we describe the issues related to iMRI use in pediatric cranial operations. MATERIAL and METHODS: Pediatric cases operated with the aid of Polestar N20 iMRI system are define...
AIM: To explore the surgical effect of cerebellar tonsillectomy with suboccipital decompression and duraplasty by small surgical incision (3~4cm around the foramina magnum) on treating Chiari I Malformation (CM I) patients. MATERIAL and METHODS: A retrospective study was undertaken on 76 CM I pati...
AIM: The objective of this study was to introduce a surgical navigation method which provides a safe, quick and effective access to cortical and subcortical tumors, along with a review of other methods in use for this purpose. MATERIAL and METHODS: 53 patients have been operated using this techniq...
AIM: In this paper we discuss the Neurosurgical Training Programme (NTP) in some European countries. MATERIAL and METHODS: Although there is no official data on how many neurosurgeons are certified in Europe, our calculation shows that this number is somewhat lower than in the United States of Ame...
AIM: Keyhole endoscopy is a promising therapeutic option for spontaneous intracerebral hemorrhage (ICH). We sought to compare the clinical outcomes between keyhole endoscopy surgery and craniotomy for basal ganglia ICH. MATERIAL and METHODS: The authors performed a retrospective analysis of the cl...
AIM: To investigate the role of erythrocyte free radical scavenging enzyme activities (FRSE), carbonic anhydrase (CA) activity and malondialdehyde (MDA) in infants with myelomeningocele (MM). MATERIAL and METHODS: We compared antioxidant enzyme activities and MDA level in 40 individuals (10 infant...
AIM: This study aimed to investigate the clinicoradiological features in patients with traumatic peritentorial subdural hematomas (SDHs). MATERIAL and METHODS: We retrospectively reviewed the clinical and radiological findings, management criteria, and outcomes in 32 patients with peritentorial SD...
AIM: Most brain tumor patients encounter cognitive impairments. Coping with such challenges is intolerable for them. Objective: This study tries to determine the diagnostic role of cognitive tests, CPT, Stroop and TOL, in assessing neuro-cognitive impairments among patients with brain tumor and he...
AIM: Surgical approaches to Meckel's cave (MC) are often technically difficult and sometimes associated with postoperative morbidity. The relationship of surgical landmarks to relevant anatomy is important. Therefore, we attempted to delineate quantitatively their anatomy and the relationships bet...
AIM: To determine whether transforaminal lumbar interbody fusion aggravate adjacent segmental degeneration more adversely than anterior lumbar interbody fusion. MATERIAL and METHODS: A normal finite element model, an anterior lumbar interbody fusion model and a transforaminal lumbar interbody fus...
AIM: Traditional surgical strategies for severe brain contusion are constantly associated with variable degree of postoperative neurological dysfunction, which is in part attributed to the location and severity of contusion. The purpose of this study was to compare and evaluate these current surgi...
AIM: To deal with postoperative CSF rhinorrhea, we developed a new technique using titanium/aneurysm clips to envelope the diaphragm defect to avoid postoperative CSF rhinorrhea. MATERIAL and METHODS: From January 2007 through December 2010, we used a new technique of clipping diaphragm defects to...
AIM: An image fusion of 3-dimensional (D) digital subtraction angiography (DSA) and magnetic resonance (MR) images, DSA-MR fusion, can simultaneously visualize both information of the vasculature provided by 3D DSA and of the soft tissues provided by MR images. The authors assessed the usefulness ...
AIM: In traumatic brain injury (TBI) patients, to overcome the secondary insults, cerebral perfusion pressure (CPP) oriented therapy is recommended. The study is assigned to estimate CPP values with middle cerebral artery (MCA) flow velocities measured noninvasively using transcranial Doppler ultr...
AIM: The objectives were to study the morphology of the foramen magnum in dry skulls and to evaluate its antero-posterior diameter, transverse diameter and the foramen magnum index. MATERIAL and METHODS: The foramen magna of 53 dry human cadaver skulls that were obtained from the neuroanatomy labo...
AIM: Intracranial aneurysm rupture is followed by high mortality and morbidity. In order to understand the aneurysm's natural course, it is necessary to recognize the predisposing factors for the rupture. MATERIAL and METHODS: Analysis included 142 operated aneurysms (94 hemorrhaging and 48 unrupt...
AIM: To evaluate the clinical effect of micro-surgical decompression of greater occipital nerve for greater occipital neuralgia (GON). MATERIAL and METHODS: 76 patients underwent surgical decompression of the great occipital nerve. A nerve block was tested before operation. The headache rapidly re...
AIM: The best method for surgical intervention in symptomatic lumbar stenosis is not clear. The present study aims to assess first year outcomes and complication rates of patients treated with single posterior decompressive laminectomy. MATRRIAL and METHODS: Patients requiring surgery for severe, ...
AIM: Hypertension, hypervolemia and hemodilution therapy is a common approach to cerebral vasospasm after subarachnoid haemorrhage. This study is designed to see the difference of moderate or aggressive hypervolemia supported with induced hypertension in symptomatic vasospasm detected with transcr...
AIM: The purpose of this study is to detect gene expression patterns following focal cerebral ischemia. MATERIAL and METHODS: 25 male Wistar rats were divided into control (n = 8) and ischemic (n = 17) groups. In the ischemic group, slowly progressing focal ischemia was simulated by two-vein occlu...
AIM: Obstruction of superior sagittal sinus (SSS) and collateral bridging veins is a well-known reason of postoperative brain edema and brain infarct, however, morphometric anatomic studies done in the light of surgical landmarks aren't sufficient in number. Object of this study is to describe venou...
AIM: We present the long-term outcomes as well as their correlation with tumor size in 127 consecutive patients harboring large MSWM after microsurgical treatment. MATERIAL and METHODS: The retrospective analysis of clinical data and follow-up data of 127 microsurgical treated patients with MSWM wa...
AIM: To evaluate the value of magnetic resonance spectroscopy (MRS), blood oxygen level-dependent imaging (BOLD) and diffusion tensor imaging (DTI) for preoperative assessment in patients with brain gliomas. MATERIAL and METHODS: Twenty-three consecutive glioma patients underwent MRS, BOLD and DTI...
AIM: Retrospective investigation of prognostic factors in low-grade astrocytomas. MATERIAL and METHODS: In the study, prognostic factors were prospectively identified and assumed to be effective on prognosis, which were reviewed in 67 cases diagnosed as low-grade astrocytoma with craniotomy betwee...
AIM: Prenatal stress is known to adversely affect the fetal brain development and also neuronal loss. The mechanism(s) associated with prenatal stress induced developmental neurotoxicity remains obscure. Few studies point to the glutathione (GSH) antioxidant system which is an important molecular ...
AIM: This study was conducted to evaluate the therapeutic effectiveness of surgical approaches in type II odontoid fracture. MATERIAL and METHODS: In a retrospective study in Mashhad university, 15 patients with anterior screw fixation technique (ASF) and 31 patients with posterior approaches (PA)...
AIM: Electrical stimulation of the dorsal column of the spinal cord stands out as a major method of neuromodulation. Its popularity stems from the long lasting support to the “gate theory” in which electrical stimulation of the gate prevents passage of nociceptive impulses and reduces ...
AIM: Arachnoid cysts are benign intra-arachnoid cystic lesions filled with cerebrospinal fluid. With advent of modern treatment techniques, debate continues regarding which surgical treatment is most effective. MATERIAL and METHODS: A consecutive series of 75 patients with arachnoid cysts that wer...
AIM: Shunting and endoscopic third ventriculostomy for treatment of hydrocephalus have their own complications which make the management of such patients more difficult. We have examined the subfrontal route to fenestrate lamina terminalis in order to achieve relief of hydrocephalus in eight conse...
AIM: Traumatic brain injury (TBI) may cause neuropsychiatric disorders such as anxiety disorder which has negative effects on cognitive functions and behavior. The aim of this study is to investigate the effects of TBI on anxiety and vascular endothelial growth factor (VEGF) immunoreactivity on th...
AIM: Supplementing anterior cervical diskectomy and fusion (ACDF) with plates enhances stabilization, increases fusion and reduces failure rates. Zero-P implant for stand-alone anterior interbody fusion procedures of the cervical spine was recently developed to avoid complications associated with ...
AIM: The aim of our study is to suggest the sphenoid wing-lesser wing angulation (SWA) importance during surgeries directed to this region. MATERIAL and METHODS: SWA on 40 skulls were measured bilaterally (n=80). The depth of the middle cranial fossa (DMCF) at the level of the SWA was determined. ...
AIM: Iatrogenic vertebral artery (VA) injury during ventral approaches to the subaxial cervical spine ranges from 0.22% to 2.77%. Evaluation of the extent of safe lateral working distance before the V2 segment of the VA is reached can be helpful to avoid this complication. MATERIAL and METHODS: In...
AIM: To determine whether translaminar facet screws can provide stability equivalent to pedicle screws in two-level anterior lumbar interbody fusion. MATERIAL and METHODS: We performed a biomechanical study using 12 fresh human lumbar spines and tested intact spine, stand-alone two-level ALIF and...
AIM: The objective of this study was to investigate the effect of citicoline administration on epidural fibrosis which is a frequent complication of lumbar disc surgery with no effective treatment or preventive surgical technique. MATERIAL and METHODS: Sixty Sprague-Dawley female rats undergoing L...
AIM: In mild and moderate idiopathic scoliosis (IS), posterior only instrumentation and fusion can provide satisfactory reduction. However in severe and rigid curvatures, combined anterior and posterior fusion is generally required. In this study we have aimed to evaluate the efficacy of posterior...
AIM: The aim of the study was to determine the remission rates of the first operation with respect to the number of surgeons and the parameters important for the prediction of the success. MATERIAL and METHODS: The study cohort consisted of 180 acromegalic patients who presented over a 29 year. Al...
AIM: Seizures are a frequent complication in patients who undergo neurosurgery, and can complicate the post-operative course and deteriorate patients' quality of life. Evidence on the prophylactic anticonvulsant therapy after craniotomy is still lacking. MATERIAL and METHODS: We undertook an obser...
BACKGROUND: Cavernomas of the brain are congenital lesions clinically divided into hereditary and a sporadic forms. Multiple lesions are usually observed in the familial form, whereas the sporadic variant generally shows a single cavernoma. In this case we describe the simultaneous bleeding of two...
AIM: To provide a quick evaluation of rebleeding risk based on the on-admission patient information and to guide the management of patients for better outcome. MATERIAL and METHODS: A retrospective review of 630 consecutive cases of subarachnoid hemorrhage (SAH) at a major medical center was cond...
AIM: To study Clinical , microbiological and radiological profile of pyogenic brain abscess patients along with modes of treatment and their outcome. MATERIAL and METHODS: This retrospective as well as prospective study included One hundred and fourteen patients of Brain Abscess who were admitted...
AIM: To observe the outcomes of 1H- MR-spectroscopy (MRS) guided gamma knife surgery for treatment of glioma. MATERIAL and METHODS: Twenty patients with glioma diagnosed pathologically were randomly divided into MRI group and MRI plus MRS group. The target volume was defined as the tumor enhanced ...
AIM: The aim of this study was to determine the serum heart-type fatty acid binding protein (H-FABP) levels and cardiac effects in patients presenting with subarachnoid hemorrhage (SAH) and to investigate whether any correlation exists between the cardiac effects and H-FABP. MATERIAL and METHODS: ...
AIM: Laboratory training models are essential for developing and refining treatment skills before the clinical application of surgical and invasive procedures. A simple simulation model is needed for young trainees to learn how to handle instruments, and to perform safe lumbar transforaminal epidu...
AIM: Failed back surgery syndrome is observed in 15% of patients who have undergone surgery for lumbar disk hernia.Excess epidural fibrosis is the etiology in 24% of FBSS cases. This study was conducted with the belief that the antiproliferative effect of temozolomide can prevent epidural fibrosis...
AIM: Large defects of the scalp, head and neck region are often encountered by plastic surgeons. The repair of such defects is dependent upon their location, size and depth. This study describes the use of large scalp flaps as a salvage procedure in the reconstruction of large scalp, head and neck...
AIM: Minimally invasive surgical techniques for spine surgery have gained popularity over the last decade. In this study, the authors describe a unilateral dynamic stabilization for unilateral spinal pathologies. MATERIAL and METHODS: A total of 7 patients with an average age of 46.1 years (range ...
AIM: The aim of this study is to investigate the relationship between fear and avoidance beliefs with the disability of patients with chronic low back pain and the prediction of quality of life. MATERIAL and METHODS: 105 outpatients with chronic low back pain were included in the study. Patients w...
AIM: Based on the neuroprotective effect of either G-CSF or statins in various neurological disease models, the purpose of this study was to evaluate the superiority of combined therapy G-CSF with simvastatin in experimental intracerebral hemorrhage (ICH). MATERIAL and METHODS: Primary ICH was ind...
AIM: Secondary brain injury starts after the initial traumatic impact and marked by an increase in the intracellular calcium concentrations.This cascadeeventually results in membrane lipid peroxidation and neuronal cell death. MATERIAL and METHODS: We investigated the neuro-protective effects of n...
AIM: Cushing's disease (CD) is caused by ACTH-secreting pituitary adenoma. Transsphenoidal surgery (TSS) is the treatment of choice. CD diagnosis must be based on biochemical confirmation of hypercortisolemia and visualization of pituitary tumor on magnetic resonance imaging (MRI). Diagnostic prob...
AIM: Spinal epidural fibrosis is an inherent result of surgical trauma after laminectomy. The conditions in which epidural fibrosis is excessive are in the etiology of failed back syndrome. There have been many attempts to prevent formation of epidural fibrosis. Bevacizumab which is an anti-angiog...
AIM: Neurolysis with transposition of the nerve and nerve resection are commonly performed surgical procedures for appropriate managing Meralgia Paresthetica (MP). But long-term outcome of these two procedures are uncertain. This case-series study came to address follow-up results of these two sur...
AIM: The aim of this study was to try to find parametric ratios for the diagnosis and pathophysiology of carpal tunnel syndrome using MR. MATERIAL and METHODS: Dominant side wrist MRI examinations of 27 female carpal tunnel patients and 21 normal females were compared. The carpal tunnel contents a...
AIM: Treatment options for traumatic brachial plexus injuries include nerve grafting, or neurotization. The type of lesion and the reconstructive procedures affect functional results and postoperative pain relief. MATERIAL and METHODS: A total number of twenty five patients suffering from post-tra...
AIM: We hypothesized that the loss of structural integrity in vessels of brain arteriovenous malformations (bAVM) is associated with abnormal expression of collagen subtypes. MATERIAL and METHODS: We retrospectively obtained the nidus tissue specimens from 24 bAVM patients and structurally normal ...
AIM: Although polyethylene glycol (PEG) is a neutral, biocompatible hydrophilic polymer recognized for its lack of interaction with biological barrier, its neurotoxicity has not been clearly identified in neurosurgery. This study is constructed to evaluate the possible neurotoxicity of a PEG hydro...
AIM: Complete aneurysm obliteration reduces the risk of rebleeding and is an important goal of the aneurysm treatment. MATERIAL and METHODS: A retrospective analysis of 63 patients undergoing endovascular treatment of posterior circulation aneurysms. The occlusion rate was stratified to three grou...
AIM: The intraneural fibro-lipoma is a benign, uncommon tumor which is characterised with infiltration of the epineurium and perineurium by fibrofatty tissue. The preoperative diagnosis is difficult. However, the Pressure-Specified Sensory Device (PSSD) may support identifying the earliest stages ...
AIM: The aim was to investigate whether dexmedetomidine had a toxic effect on cerebral neurons when it was administered centrally into the cerebrospinal fluid by the intracisternal route. MATERIAL and METHODS: Eighteen rats were anesthetized and the right femoral artery was cannulated. Mean arteri...
AIM: The purpose of this trial was to investigate the effect of a well known immunomodulator -interferon beta- on traumatized spinal cord in terms of biochemical and histopathological features. MATERIAL and METHODS: Twenty-four rats were used in this trial. The rats were divided into 3 groups. In ...
AIM: Burr-hole craniostomy is the most efficient and safe choice for surgical drainage of chronic subdural hematoma (CSDH). Although the twist-drill drainage is also relatively safe and time-saving, it carries the risk of inadequate drainage, brain penetration and hematoma formation. Our modified ...
AIM: To determine the immunohistochemical expression of ErbB2 in adamantinomatous craniopharyngiomas (ACP) and to assess its relationship with nuclear expression of β-catenin in surgically resected human ACP tissue sections and to estimate whether these tumors could be candidates for anti-Erb...
AIM: Evaluation of the laparoscopic assisted revision of the ventriculoperitoneal shunt as an alternative technique to the traditional laparotomy. MATERIAL and METHODS: Out of 1181 elective neurosurgical procedures have been done from January 2009 to December 2010. There are 98 (8.2%) ventriculope...
AIM: The aim of this study is to investigate the effects of prior splenectomy on oxidative stress and neuronal loss following spinal cord ischemia and reperfusion injury. MATERIAL and METHODS: Twenty-one Sprague Dawley rats were randomly divided into three groups as sham laparatomy (n=7), spinal ...
AIM: To investigate physical activity level in patients with chronic low back and neck pain. MATERIAL and METHODS: 32 preoperative patients, 32 outpatients with low back or neck pain and 32 healthy controls were included in study. The physical activity level of the participants was evaluated with ...
AIM: Lung cancer is the leading cause of cancer-related mortality worldwide. Pain is a common problem in these patients, yet inadequate or dissatisfactory management is prevalent. MATERIAL and METHODS: Between 1987 and 2012, 224 patients with intractable pain were treated with computerized tomogra...
AIM: It is well known that head trauma results in damage in hippocampal and cortical areas of the brain and impairs cognitive functions. The aim of this study is to explore the neuroprotective effect of combination therapy with magnesium sulphate (MgSO4) and progesterone in the 7-days-old rat pups...
AIM: Intracranial arachnoid cysts account for 1% of all intracranial mass lesions and may require drainage if symptomatic. MATERIAL and METHODS: We retrospectively reviewed the medical records of 45 consecutive patients who underwent surgical drainage for symptomatic intracranial cysts at our inst...
AIM: Intracerebroventricular (icv) administration of beta amyloid peptide (Aβ) in rats can be used to model certain aspects of Alzheimer disease (AD).The purpose of this study was to examine the effects of intracerebroventricular Aβ (1-42) peptide injection on caspase-3 activity and expr...
AIM: The aim was to evaluate the level of interleukin 8 (IL-8), transforming growth factor β1 (TGF β1) and Nitric oxide (NO) in diffuse axonal injury (DAI) and its association to the outcome and clinical status. MATERIAL and METHODS: This cross-sectional study was conducted on 20 patient...
AIM: The dose dependent effects of alpha lipoic acid (α-LA) were investigated morphologically on rat vasospasm model. MATERIAL and METHODS: 32 rats were divided into four groups: group I=control; group II=vasospasm; group III=vasospasm +low dose (20 mg/kg) intraperitoneal α-LA administer...
AIM: To evaluate long-term postoperative facial nerve function in patients undergoing large cystic vestibular schwannomas (VSs) surgery. MATERIAL and METHODS: Surgical outcome of 36 patients with large cystic VS was retrospectively assessed, and compared with a group of 67 patients with large soli...
AIM: This study reports a technique for treating severe thoracolumbar fractures with single-stage decompression, reduction, reconstruction, and stabilization via an entirely posterior approach. MATERIAL and METHODS: The cases of 11 patients with severe traumatic thoracolumbar fractures/dislocation...
AIM: To describe a reconstructive technique using single stent for wide-necked aneurysms. MATERIAL and METHODS: This technique was described as stent-jail technique consisting of the aneurismal catheterization before the deployment of a self-expandable stent across the aneurysm neck. Following the...
AIM: We aimed to investigate the contribution of the touch imprint cytology (TIC) of core needle biopsies (CNBs) to the diagnosis in spinal lesions. MATERIAL and METHODS: Sixty cases with spinal CNB and TIC were included in the study. Hematoxylin and Eosin (H&E) and May-Grunwald- Giemsa (MGG) sta...
AIM: Comparison of long-term preoperative and postoperative clinical and radiological results for patients diagnosed with degenerative disc disease that underwent posterior dynamic stabilization. Lumbar disc degeneration is caused by a variety of factors. Disruptions in the vertebral endplate resu...
AIM: The aim of this study was to investigate retrospectively the multiple injuries prone to be missed in 432 cases. MATERIAL and METHODS: The cases were divided into two groups, i.e., whether the missed injury was found during admission or follow up. The mean ISS value, ratio of patients of cases...
AIM: To clarify the usefulness of supracondylar transjugular tubercle approach for treatment intradural lesions anterior and anterolateral to foramen magnum, in which the posterior portion of the jugular tubercle is removed extradurally through the condylar fossa with the atlantooccipital joint in...
AIM: To compare the effect of dexmedetomidine administered by intracisternal route with by intravenous route on brain tissue of rat after incomplete cerebral ischemia. MATERIAL and METHODS: Cerebral ischemia was produced by the combination of right common carotid artery occlusion and hemorrhagic ...
AIM: To evaluate the utility of 3D-magnetic resonance cisternography(MRC) of posterior cranial fossa in visualizing trigeminal neurovascular compression in patients with trigeminal neuralgia. MATERIAL and METHODS: 146 consecutive patients in the period from June 2010 to July 2011 in our institute ...
AIM: To assess the incidence, hormonal activity and postoperative follow up of the cases that are histopathologically diagnosed as atypical pituitary adenoma (APA) in our series. MATERIAL and METHODS: In this study, 13 atypical pituitary adenoma cases, by the WHO 2004 criteria, among the 146 pitui...
AIM: Stent placements for the treatment of complex internal carotid bifurcation aneurysms are not well documented yet. In this article, we reported a series of 16 such cases to evaluate the feasibility, safety and effectiveness of stent placement for these particular lesions. MATERIAL and METHODS:...
This study aims to determine the dysfunction caused by existing pathological condition in structures involved in the transfer of sensory functions of the neural system in cervical disc herniation, and to establish whether or not the level and degree of this anatomical damage can be anticipated by ...
AIM: To investigate whether carboxymethylcellulose/polyethylene oxide (CMC/PEO) gel has a protective effect against epidural scar formation anterior to the dura following discectomy. MATERIAL and METHODS: A barrier gel comprised of CMC and PEO (MediShield) was studied as a material to reduce anter...
AIM: The prognosis of VBA aneurysms seems poor and surgical management of VBA dissecting aneurysms is challenging. We evaluated our endovascular experience in management of ruptured and unruptured VBA dissecting aneurysms. MATERIAL and METHODS: Eleven consecutive patients with eleven VBA aneurysms...
AIM: The study aimed to examine the position of three-dimensional (3D) neurosonography and the advantages and disadvantages of ultrasound-based neuronavigation in spinal cord tumour surgery. MATERIAL and METHODS: During the period July, 2007- February 2011, 28 patients with spinal cord tumours wer...
AIM: To evaluate the correlation between the dimensions of ischemic and hemorrhagic lesions detected by diffusion MRI and the changes in lesion dimensions with serum NT-proBNP levels in mild and moderate head trauma. MATERIAL and METHODS: 30 patients were assessed in our study. A control group of ...
AIM: In spinal surgery, high doses of radiation are delivered during surgical procedures that require fluoroscopic control. The aim of this study was to determine the amount of radiation delivered from the fluoroscopic unit and also the factors to reduce the amount of radiation during the surgery ...
AIM: Adiponectin plays an important role in the regulation of tissue inflammation. Recently, it has been reported that the plasma adiponectin levels in several acute illnesses decrease periodically, thus indicating that adiponectin may play a role in the inflammatory response in patients with acut...
AIM: To evaluate use of a titanium mesh to fill cranial defects in growing animals, as a model for juvenile humans. MATERIAL and METHODS: Thirty two-month-old Seghers pigs were evenly assigned to one of three groups: controls, a defect group (unrepaired 5 × 5 cm lesion), and a repair group (repair...
AIM: To assess the effectiveness and safety of pre-resection endoscopic third ventriculostomy (ETV) in permanently relieving hydrocephalus in children with posterior fossa tumors. MATERIAL and METHODS: 17 pediatric patients with posterior fossa tumors and associated triventricular obstructive hydr...
AIM: The purpose of this study was to determine the possible protective effects of captopril treatment against apoptosis in the brain induced by burn injury. MATERIAL and METHODS: Under ether anaesthesia, Wistar albino rats (200-250 g) were exposed to a 900C (burn) or 250C (sham) water bath for 1...
AIM: To compare the clinical and radiological outcomes of recurrent disk disease in patients who underwent unilateral and bilateral percutaneous pedicle screw instrumentation with Mis-TLIF. MATERIAL and METHODS: 10 patients treated with unilateral percutaneous instrumentation plus Mis-TLIF formed ...
AIM: To assess the correlation between quality of life (QoL), depressive symptoms and motor signs in patients with Parkinson disease after subthalamic deep brain stimulation (DBS STN). MATERIAL and METHODS: 74 patients, average age 55.6 ± 7 and duration of disease 12.3 years± 3.8, treated with l S...
Aim: The purpose of the present study is to analyze the expression of matrix metalloproteinase-3 (MMP-3), magnetic resonance imaging (MRI) grading and histopathological alterations of the intervertebral disc (IVD) for correlations with each other and with the age, gender and low back pain duration...
Aim: Supraorbital keyhole approach provides access to the major part of the anterior circulation aneurysms. Herein, our surgical experience of supraorbital keyhole approach and its some modification have been proposed. Material and Methods: Out of a series of 76 patients harboring 80 aneurysms op...
Aim: Multilayer reconstruction of skull base using nasal pedicled mucosal flap has been widely accepted as a standard method for repairing high flow cerebrospinal fluid [CSF] leakage. In this study, we analyzed our outcome and summarized several valuable operation experiences from this technique. ...
Aim: The aim of this study was to retrospectively analyse the clinical, radiological features and surgical outcome of pineal epidermoid tumors treated at a single neurosurgical department. Material and Methods: We performed surgery on five patients with pineal region epidermoid tumors at a single...
Aim: This study aimed to investigate the effects of VNS in transient middle cerebral artery occlusion and reperfusion (MCAO/R) rat model of ischemia based on behavioral, morphological, and molecular approaches. Material and Methods: Wistar albino rats were divided into 3 groups: ischemia-reperfus...
Aim: To evaluate timing of scheduled CT-scans after burr hole trepanation for chronic subdural hematoma (cSDH). Material and Methods: 131 patients with primary cSDH were included. Scheduled CT-scans were performed after burr hole trepanation and placement of a subdural drain. The influence of CT-...
Aim: The deletion polymorphism of the angiotensin-converting enzyme (ACE) genome causes neoplastic development in several organs by increasing the angiotensin 2 (A2) formation. In this study, we aimed to identify the ACE genome insertion/deletion polymorphism in pituitary adenomas and to compare i...
Aim: To raise the awareness of the appropriate management of unusual clinical presentation of cervical disc herniation. Material and Methods: Seven patients with Brown-Sequard syndrome due to cervical disc herniation presented with Brown-Sequard syndrome had been treated surgically as one of them...
Aim: Assessment of previous vertebral fractures provides useful information to predict future fracture risk. This study aimed to determine the frequency, distribution and severity of prevalent osteoporotic vertebral fractures in postmenopausal women. Material and Methods: Data on patient characte...
Aim: Many guidelines recommend carotid endarterectomy (CEA) in symptomatic patients with carotid stenosis of greater than 70%, and carotid artery stenting (CAS) as an alternative to CEA. In our study, we evaluated the clinical characteristics of patients who underwent revascularizaton therapy. M...
Aim: The current study aims to explore the clinical characteristics of craniocerebral firearm injury and to improve the diagnosis and treatment of this condition. Material and Methods: Data from 56 patients with craniocerebral firearm injury were analyzed retrospectively for projectile types, tr...
Aim: This study was conducted with aim of determining prevalence of headache and evaluating its effects on health-related quality of life (HRQoL) in Beylikova town of Eskisehir city in the west of Turkey. Material and Methods: This study was conducted on adults aged 20 years and over aged between...
New techniques have minimized the incision length and thus required modifications of surgical instruments. The Taylor retractor is one of these instruments. We therefore designed several modifications of the classical Taylor retractor. The following structural modifications were made on the classi...
AIM: The aim of this study was to identify the most appropriate method of surgical treatment of hydrocephalus in preterm infants that is caused by spontaneous intraventricular hemorrhage (IVH) and to identify predictive factors of poor perioperative outcomes. MATERIAL and METHODS: We present a ser...
AIM: To determine the role of intraoperative ultrasonography (IOUSG) in the surgical management of patients with intradural spinal tumors. MATERIAL and METHODS: Twenty-six patients with intradural spinal cord tumors were surgically treated under intraoperative ultrasonographic guidance between Jan...
AIM: To investigate the effects of hyperbaric oxygen treatment on epidural fibrosis formation in an experimental laminectomy model. MATERIAL and METHODS: Twenty-four Wistar rats underwent L5-L6 total laminectomy and divided into three groups. Animals in the control group received no further treatm...
AIM: Pituitary abscess is a disorder characterized with central nervous system (CNS) infection, mass effect, and endocrine dysfunction. These abscesses generally occur due to hematogenous spread in conditions such as paranasal sinusitis, sepsis, and where the blood brain barrier breaks down. This ...
AIM: This study aimed to investigate the effects of a new generation antiepileptic agent, levetiracetam, on the neural tube development in a chick embryo model that corresponds to the first month of vertebral development in mammals. MATERIAL and METHODS: Forty-five Atabey® breed fertilized chicken...
AIM: The aim of the study was to evaluate the effect of peroperatively locally administered dexamethasone on nerve recovery after induced nerve crush injury. MATERIAL and METHODS: 4 groups of 8 animals were formed. The sciatic nerves of 32 rats were exposed at midthigh level and those of 24 rats ...
AIM: This study aims to evaluate the hemilaminectomy approach and in situ restoration of vertebral laminae in microsurgery for thoracic intraspinal tumors. MATERIAL and METHODS: Sixteen patients with thoracic intraspinal tumors, consisting of 6 males and 10 females with a mean age of 47.5±16.4 ye...
AIM: We describe a modified form of traditional open surgery with a new guide tube. This guide tube permits anterior screwing of odontoid in a shorter time with a more simple technique as compared to traditional open surgery, endoscopic and percutaneous surgeries. MATERIAL and METHODS: Our series ...
AIM: To investigate the factors related to the local recurrence-free survival time (LRFS) after surgical treatment of GCT of the sacrum and mobile spine combined with preoperative embolization. MATERIAL and METHODS: We retrospectively reviewed 28 consecutive patients with GCT of the sacrum and mob...
AIM: The aim of this study was to investigate the clinical characteristics and outcomes of patients who developed cerebral herniation after continuous lumbar cerebrospinal fluid (CSF) drainage. MATERIAL and METHODS: We retrospectively reviewed eight patients who developed cerebral herniation after...
AIM: Subthalamic nucleus (STN) deep brain stimulation (DBS) has become a well-accepted treatment for patients with advanced Parkinson’s disease (PD). During surgical planning for DBS, the length of the STN is taken into account and verified during microelectrode recording (MER) intraoperativ...
AIM: The aim of this study was to investigate the neuroprotective effect of magnesium sulfate and dexamethasone on oxidative damage in intrauterine ischemia. MATERIAL and METHODS: In this study, 19-day pregnant rats were divided into five groups. Fetal brain ischemia was achieved in the ischemia/ ...
AIM: Transforming growth factor β (TGF-β) and Smads control intracellular signaling pathways in neurulation. Although previously reported similar experimental animal studies, the aim of this human study is to investigate the expression of TGF-β (1,2,3) and Smads (1,2,3,6,7) in abort...
AIM: To study the clinicopathologic characteristics of chordomas from a single institution. MATERIAL and METHODS: This study is a retrospective analysis of 18 cases of chordomas diagnosed over a period of 5-years at Sher-i-Kashmir Institute of Medical Sciences, Srinagar, from 2006 to 2010. RESULT...
AIM: The aim of this study is to determine the structural changes of electromagnetic waves in the frontal cortex, brain stem and cerebellum. MATERIAL and METHODS: 24 Wistar Albino adult male rats were randomly divided into four groups: group I consisted of control rats, and groups II-IV comprised ...
AIM: The current study aims to explore the diagnosis and treatment of traumatic internal carotid artery pseudoaneurysm (TICAP) primarily manifested by repeated epistaxis. MATERIAL and METHODS: Clinical data from 31 patients suffering from repeated epistaxis after trauma were retrospectively analyz...
AIM: We investigated the differential miRNA expression in pituitary adenomas (both non-functioning and gonadotropin-secreting) and normal pituitaries. MATERIAL and METHODS: RNA was extracted and purified from pituitary adenomas (10 non-functioning and 10 gonadotropin-secreting) and from two norm...
AIM: In demyelinating disease spectrum, tumor-like (tumefactive) demyelinating lesions (TDL) are rarely seen. Atypical imaging and clinical features of these lesions may cause misdiagnosis of tumor or abscess. MATERIAL and METHODS: 25 patients with TDL in our center were followed and clinical, mag...
AIM: Postoperative cerebrospinal fluid (CSF) leak following endoscopic endonasal transsphenoidal surgery (EETS) is associated with increased morbidity and mortality. This prospective study is the first evaluation of using autologous fibrin sealant for preventing postoperative CSF leak and related ...
AIM: The objective of this study is to examine the effects of radiation of mobile phones on developing neural tissue of chick embryos. MATERIAL and METHODS: There were 4 study groups. All Groups were placed in equal distance, from the mobile phones. Serial sections were taken from each Group to st...
AIM: To evaluate the effectiveness of invasive procedures in medically intractable genitofemoral and ilioingunal neuralgia. MATERIAL and METHODS: This is a prospective study of 20 patients with genitofemoral and ilioinguinal neuralgias who were treated at our medical center between 2007 and 2011. ...
AIM: We encountered no study conducted on the evaluation of prevertebral soft tissue (PVST) thickness by magnetic resonance imaging (MRI) during our literature search. Measuring PVST thickness by MRI in the cervical region of adult cases was aimed in the present retrospective study. MATERIAL and ...
AIM: In this study, the effects of lornoxicam on the prevention of secondary brain injury via the apoptotic pathway were studied in a rat model of head injury. MATERIAL and METHODS: Thirty adult male Wistar albino rats were anesthetized, and experimental closed head trauma was induced by allowing...
AIM: Replacement of aneurysm clips or temporary parent artery occlusion during aneurysm clipping (AC) carries the risk of inducing postoperative neurologic deficits. When studying the risk of surgical complications associated with cerebral aneurysms, patients with similar conditions should be comp...
AIM: To confirm whether implanting pedicle-screw at the level of fractured vertebra increases adverse effects on fracture healing. MATERIAL and METHODS: CT follow-up was conducted for 28 patients who sustained thoracic or lumbar burst fracture and underwent posterior pedicle-screw instrumentation ...
AIM: In the present study, we investigate the neuroprotective effects of rituximab, a monoclonal antibody directed towards B cell mediated humoral immunity, on a rat spinal cord injury (SCI) model with immunohistochemical methods. MATERIAL and METHODS: Twenty-four rats were used for the study. Rat...
AIM: This study aims to evaluate how analgesia-sedation causes alterations of HLA-DR and cytokines (IL-10 and IL-6) in patients undergoing cerebral angiography for several cerebral vascular diseases. MATERIAL and METHODS: This study includes 41 males who underwent cerebral angiography. The study s...
AIM: Colloid cysts are uncommon lesions, which most commonly occur in the fourth through seventh decade. The authors hereby report a series of colloid cysts in the pediatric age group. MATERIAL and METHODS: A retrospective study was conducted on all patients of colloid cyst that underwent surgery ...
AIM: The aim of this study is to report the incidence rate of neurosurgical wound infection at our university as well as the predisposing risk factors. MATERIAL and METHODS: A 2-year hospital prospective study was conducted and included 1110 patients underwent 1181 elective neurosurgical procedur...
AIM: Carcinomatous meningitis (CM) is a rare neurological disorder. We aim to promote the diagnostic efficiency of CM. MATERIAL and METHODS: Four patients (1 male and 3 females) who had been diagnosed with CM from June 2007 to June 2009 in our department were included in this study. The mean age o...
AIM: Traumatic Brain Injury (TBI) is one of the leading causes for morbidity, mortality and economic loss. The impact is much worse in developing countries like Pakistan. The objective of our study was to highlight the etiological pattern and distribution of TBI in Pakistan. MATERIAL and METHODS: ...
AIM: The aim of this study was to investigate the effect of copper, which is the cofactor and regulator of the superoxide dysmutase enzyme, on preventing experimental peripheral vasospasm in rats through antioxidative mechanisms. MATERIAL and METHODS: Twenty-four female Wistar-Albino rats were div...
AIM: Posterior inferior cerebellar artery (PICA) aneurysms are uncommon. The natural history and management of these aneurysms remains poorly understood. Surgical treatment of PICA aneurysms is challenging in view of their close neurovascular relationship. MATERIAL and METHODS: Data relating to cl...
AIM: Dendroaspis natriuretic peptide (DNP) is the most recently identified member of the natriuretic peptide family. Although DNP has similar structure and function to other members, it is genetically different. The other members are known to cause vasorelaxation but the effects of DNP on vascular...
AIM: The present stent-assisted coil technique has many limitations especially in treating fusiform aneurysms. We aimed to introduce stenting following coiling technique to treat fusiform aneurysms. MATERIAL and METHODS: From January 2009 to December 2010, we treated 6 patients with fusiform aneur...
AIM: Patients usually suffer significant pain after lumbar laminectomy. Wound infiltration with local anesthetics is a useful method for postoperative pain control. Our aim was to compare the efficacies of preemptive wound infiltration with bupivacaine and levobupivacaine. MATERIAL and METHODS: 60...
AIM: The aim of this study was to investigate the dose dependence of citicoline’s previously-reported effects on recovery of peripheral nerve injury. MATERIAL and METHODS: Right sciatic nerves of sixty adult female Wistar Albino rats were incised and primary anastomosis was performed. Rats ...
AIM: To understand the mechanism of the gamma knife treating the trigeminal neuralgia. MATERIAL and METHODS: Using the MASEP-SRRS type gamma knife treatment system, 140 Chinese patients with trigeminal neuralgia (NT) were treated in our hospital from 2002 to 2010, in which the pain relief rate rea...
AIM: One of the clinical presentations of intracranial aneurysm is unilateral oculomotor nerve palsy (ONP). The most common location is the posterior communicating artery. Surgical clipping and/or endovascular coiling of the aneurysm are the treatments. The aim of this study was to identify the fa...
AIM: Treatment of craniopharyngiomas remains challenging. The aim of this study was to evaluate results of initial surgical management of craniopharyngiomas via the extended pterional approach. MATERIAL and METHODS: Nineteen patients (10 female; median age of 23 years; ranging from 10 months to 67...
AIM: To determine whether nucleotomy may aggravate lumbar degeneration at the operated level. MATERIAL and METHODS: A normal healthy finite element model, two degeneration models and corresponding nucleotomy models of the L4-5 segment were created. Combined with 800 N preloading, 10 Nm moment was ...
AIM: This study reports our preliminary experiences in performing detachable micro-coils embolization for refractory traumatic carotid cavernous fistulas (TCCFs) and evaluates its efficacy and safety. MATERIAL and METHODS: Fifteen consecutive patients with TCCFs treated with detachable micro-coils...
AIM: The purpose of this study was to demonstrate the activity of agmatine, an inducible nitric oxide synthase (iNOS) inhibitor and selective N-methyl-D-aspartate receptor (NMDAR) antagonist, on reducing tissue damage in distal part of traumatic nerve in an experimental rat peripheral nerve injury...
AIM: This study aims to investigate the influence of different surgical timing on outcome of patients with aneurysmal subarachnoid hemorrhage and to explore the surgical techniques for ruptured intracranial aneurysms. MATERIAL and METHODS: The clinical data were from 327 cases. 304 cases of the su...
AIM: To discuss the surgical methods for multiple intracranial aneurysms. MATERIAL and METHODS: 23 patients were divided into three groups according to the location of the aneurysms: aneurysms located in one side or in the midline of the Willis ring; aneurysms located on both sides of the Willis r...
AIM: Fast direct decompression surgery for treatment of severe head injury often results in intraoperative and postoperative complications. Controlled decompression may help prevent these complications. This preliminary study aims to compare the effects of controlled and conventional decompression...
AIM: The aim of this study was to evaluate the role of intravascular virtual MR endoscopy in the planning of correct surgical clipping of the aneurysm neck. MATERIAL and METHODS: A total of 36 aneurysms were detected by using magnetic resonance angiography (MRA) in thirty patients. Intravascular ...
AIM: To review our experience in the surgical treatment of TISH, and to analyze prognostic factors. MATERIAL and METHODS: Clinical and imaging data, surgical modalities, and outcomes of 21 patients with TISH who were treated with microsurgery were analyzed retrospectively. Prognostic factors for o...
AIM: Epileptic seizures lead to neuronal loss in the hippocampus. Experimental epilepsy can be induced by direct application of various chemicals to cerebral cortex. Nifedipine is an L-type voltage-dependent calcium channel blocker. In spite of several studies that show the seizure-suppressing eff...
AIM: To investigate the effect of gradient decompression on the occurrence of intraoperative hypotension and prognosis in traumatic brain injury. MATERIAL and METHODS: A retrospective analysis was performed in 186 hospitalized patients from January, 2008 to January, 2012 in the Affiliated Hospita...
AIM: To analyze the analysis of recurrence rates of single versus double burr holes in patients with subacute and chronic subdural hematomas. MATERIAL and METHODS: The study was a prospective randomized controlled trial on patients with subacute and chronic subdural hematomas. Collections with mem...
AIM: Implant-related infections are still a significant problem in spinal surgical procedures. Many drugs and methods have been tried to prevent implant-related infections. Our objective in this study was to evaluate whether royal jelly, which was found to hinder the growth of MRSA, has any preven...
AIM: To evaluate the use of indocyanine green (ICG) videoangiography in surgical clipping of paraclinoid aneurysms. MATERIAL and METHODS: Intraoperative ICG videoangiography was used as a surgical adjunct in 60 patients with 65 paraclinoid aneurysms. The findings on ICG videoangiography were compa...
AIM: To study the clinical value and efficacy of computerized tomography (CT)-monitored microinvasive craniopuncture for traumatic epidural hematoma. MATERIAL and METHODS: Thirty-three cases of traumatic epidural hematoma patients were selected at our hospital. YL-1-type disposable intracranial h...
AIM: The purpose of this study was to compare the different clinical features, outcome and treatment strategies in patients with perimesencephalic SAH (p-SAH) and diffuse SAH (d-SAH). MATERIAL and METHODS: 83 patients with spontaneous SAH and negative initial cerebral angiography were retrospectiv...
AIM: To evaluate the effect of mannitol at different doses (125 ml and 250 ml) by transcranial Doppler (TCD) sonography in patients with acute large hemispheric infarction. MATERIAL and METHODS: 33 patients with acute large hemispheric infarction were enrolled, and the systolic peak velocity (Vs),...
AIM: Spinal cord injury (SCI) is characterized by posttraumatic inflammatory cascades including excitotoxicity, oxidative stress, and apoptosis. Agents against neuroinflammation are the current scope of studies on experimental SCI with promising results. MATERIAL and METHODS: Thirty-two male Sprag...
AIM: The aim of this study was to evaluate the use of Resovist in perfusion-weighted imaging (PWI) of rat hyperacute cerebral infarction. MATERIAL and METHODS: 30 Wistar rats were randomly divided into 2 groups. Group A was intravenously injected with 8 μmol Fe/kg body weight of Resovist, whi...
AIM: To investigate clinical factors that may influence the decision to preserve or remove the bone flap during the craniectomy surgery for patients of traumatic brain injury. MATERIAL and METHODS: Clinical data from 2256 TBI patients were quantitatively analyzed and scored based on multiple clini...
AIM: Intrasutural bones are often found within sutures and fontanelles of the skull. It is important that the anatomy of these bones in the field of non-accidental injury with respect to medicolegal complications. Skull fracture lines are critical in their differential diagnosis, and the features ...
AIM: Matrix metalloproteinase 9 (MMP-9) has been shown to be a potential biomarker for outcome prediction after neuron damage. This study investigated whether MMP-9 could be used for outcome prediction after traumatic brain injury (TBI). MATERIAL and METHODS: For the TBI group, cerebrospinal fluid...
AIM: Autophagy is an important process that balances cellular protein synthesis and degradation and is involved in many physiological and pathological conditions. However, the precise role of autophagy has not yet been defined in the model of spinal cord injury (SCI). MATERIAL and METHODS: Here, w...
AIM: To compare anterior pituitary functions between subjects with total and partial primary empty sella (PES) and to assess whether all cases with PES need endocrinological evaluation. MATERIAL and METHODS: Eighty-one subjects with PES (34 total and 47 partial) were included in the study. Basal a...
AIM: The aim of this study was to evaluate patient satisfaction and cost in spinal and general anesthesia for lumbar disc surgery. MATERIAL and METHODS: The study was performed on 66 ASA class I-II patients with one level lumbar disc herniation (LDH). In this prospective study, patients were assig...
AIM: To explore the feasibility and effectiveness of early microsurgical therapy for acute hydrocephalus resulting from a ruptured intracranial aneurysm. MATERIAL and METHODS: Forty patients with Hunt-Hess grades II-III were assigned to group A; 27 patients with grades IV-V formed group B. The pa...
AIM: To investigate the changes of cerebrospinal fluid (CSF) cystatin C (CC) levels associated with the postoperative ischemic conditions and prognostic outcome in patients with aneurysmal subarachnoid hemorrhage (SAH). MATERIAL and METHODS: The study group consisted of 40 patients with microsurgi...
AIM: To demonstrate the incidence of screw misplacement and revision rates in a group of 72 patients that underwent pedicle screw fixation for spinal pathologies using the conventional, fluoroscopy-guided open technique. MATERIAL and METHODS: Data from 72 consecutive patients with spinal instabili...
AIM: Piriformis syndrome is a rare neuromuscular disorder that occurs when the piriformis muscle compresses or irritates the sciatic nerve. The treatment of piriformis syndrome includes injections into the piriformis muscle around the sciatic nerve. These invasive approaches have been used with va...
AIM: High cervical spinal cord injury is associated with high morbidity and mortality. Traditional treatments carry various complications such as infection, pacemaker failure and undesirable movement. Thus, a secure surgical strategy with fewer complications analogous to physiological ventilation ...
AIM: The aim of this study was to better define the microsurgical anatomy of the supra/parasellar region and describe variations of the anterior clinoid process (ACP). MATERIAL and METHODS: Fifteen formalin-fixed cadaver heads and 25 dry skulls were used to define the microsurgical anatomy of the ...
AIM: To compare the rates of recurrence of chronic subdural hematoma following surgical evacuation by one of two methods, namely, using frontal and parietal burr holes without a drain or a single parietal burr hole with the addition of a subdural drain. MATERIAL and METHODS: This was a randomized ...
AIM: Sacral fractures are generally seen together with pelvic ring fractures. They can also develop in isolated form rarely. Instability is observed in these fractures in rates reaching 30%. MATERIAL and METHODS: Spinopelvic stabilization was applied to 10 cases with pelvic fractures together with...
AIM: The formation of epidural fibrosis adjacent to the dura mater after posterior spinal surgery is a normal reaction of the body to surgery. Extensive epidural fibrosis is one of the important causes of postlaminectomy syndrome. Etanercept inhibits tumor necrosis factor-alpha and decreases fibro...
AIM: Robotic spine surgery techniques provide reduced pedicle screw malposition and radiation exposure during surgery. The aim of this study is to review clinical and radiological results of robotic spine surgery. MATERIAL and METHODS: The preoperative, intraoperative and postoperative data for 27...
AIM: Astrocytes and extracellular matrix molecules have important roles in regulating synaptic functions between neurons in the central nervous system. However, under pathological conditions, these constituents are activated to form glial scar that is thought to be harmful for neuronal regeneratio...
AIM: To compare mean cerebrospinal fluid (CSF) volume in the aqueduct by using phase-contrast magnetic resonance imaging for the patients with idiopathic normal pressure hydrocephalus (INPH) and atrophic dilation (AD) to investigate the efficacy of this technique in predicting surgery. MATERIAL a...
AIM: An evaluation of treatment methods and outcomes for coccygodynia cases that do not respond to conservative treatment. MATERIAL and METHODS: Local anesthetic and steroid injections were applied in 32 coccygodynia cases that did not respond to conservative treatment (average of 15 months). Cocc...
AIM: To explore the clinical value of combining pyramidal tract mapping, microscopic-based neuronavigation, and intraoperative magnetic resonance imaging (iMRI) in the surgical treatment of epileptic foci involving sensorimotor cortex. MATERIAL and METHODS: We retrospectively analyzed 69 patients ...
AIM: In surgeries involving clamping, opening and repairing the carotid artery such as carotid endarterectomy (CEA) and proximal anastomosis at radial artery (RA) grafting, back-bleeding, often due to insufficient occlusion of the ascending pharyngeal artery (APA), must be avoided. In 96% of cases...
AIM: We aimed to show the effects of neuronavigation and intraoperative imaging systems on the surgical outcomes of orbital tumors. MATERIAL and METHODS: Seventeen patients who underwent surgical treatment for orbital tumors by transcranial and transnasal approaches between 2008 and 2013 were anal...
AIM: We present a series of 16 patients who underwent occipitocervical fixation with occipital bone hooks used as a substitute for occipital screws for the treatment of occipitocervical instability. MATERIAL and METHODS: In this technique; instrumentation was started following the decompression wi...
AIM: The aim of the present study was to analyze our experience with a new liquid embolic agent, Squid, for the treatment of cerebral vascular lesions. MATERIAL and METHODS: We present 28 patients who were treated with two formulations of Squid (Squid 18 and Squid 12). The lesions included 16 art...
AIM: Most dural arteriovenous fistulas (DAVFs) can be treated safely and effectively with endovascular Onyx embolization. Balloon-assisted endovascular Onyx embolization of intracranial DAVFs is especially suitable for arterial protection and arterial flow reduction in complicated DAVFs. We system...
AIM: The aim of this study was to evaluate our treatment and outcome in patients with large medial sphenoid wing meningiomas (SWMs). MATERIAL and METHODS: Data from 178 patients with large medial SWMs treated was collected and analyzed retrospectively. Most of patients underwent microsurgical rese...
AIM: Multi-profile monitoring of various blood serum factors during acute subarachnoid haemorrhage (SAH) is crucial for successful treatment. The aim of the study is to evaluate the serum concentration of different blood factors in the acute period of SAH. MATERIAL and METHODS: 31 patients with co...
AIM: Pituitary adenomas do not have a single factor of aggressive behavior or recurrence. The objective of this study was to determine factors influencing the prognosis in pituitary adenomas. MATERIAL and METHODS: 243 patients who were operated between January 2000 and June 2012 were included in t...
AIM: The authors review their experience in the endoscopic endonasal transsphenoidal treatment of 5 patients, finally diagnosed as primary hypophysitis but initially assumed to be pituitary adenomas. MATERIAL and METHODS: A retrospective study was undertaken to review 5 cases of primary non-necrot...
AIM: This work aims to summarize the experience in emergency microsurgery for patients with aneurysmal subarachnoid hemorrhage (SAH) that coexisted with brain hernia. MATERIAL and METHODS: A total of 26 patients with aneurysmal SAH complicated by brain hernia were subjected to emergency aneurysm ...
AIM: To compare the effects of post neurosurgical antimicrobial prophylaxis before and after the adoption of a new protocol in our department, which changed from prolonged prophylaxis to limited usage. MATERIAL and METHODS: Two cross-sectional studies were performed to compare the 24-hour antimicr...
AIM: Topiramate is an antiepileptic drug with multiple mechanisms of action that is also used for migraine prophylaxis. This study aimed to investigate the efficacy of topiramate therapy for migraine prophylaxis, based on vasomotor reactivity ([VMR] an indicator of cerebral autoregulation), and to...
AIM: To investigate the effect of locally administered intracisternal papaverine on the pupils during cerebral aneurysm clipping. MATERIAL and METHODS: Four patients that received cerebral aneurysm clipping were included in the study. Papaverine (3%, 60 mg) was dropped into the internal carotid ar...
AIM: This study aimed to evaluate the short- to medium-term outcomes of the second-generation Wallis interspinous dynamic stabilization device for treatment of lumbar degenerative disease. MATERIAL and METHODS: Fifty patients with lumbar degenerative disease treated from August 2007 to September 2...
AIM: Surgery for lesions involving the anterior column of the cervicothoracic junction is still challenging. The median transsternal approach provides a direct approach to this junction. The aim of this study was to present the results of cases operated using the median transsternal approach. MAT...
AIM: To improve the strength of stabilization systems currently used in osteoporotic spinal fractures, essentially by increasing the fixation force of pedicle screws. MATERIAL and METHODS: Six human cadaveric vertebrae were used. Bone mineral densities of the specimens were measured with Dual Ene...
AIM: The matrix metalloproteinase (MMP) enzyme family has been shown to be active in tumorigenesis and tumor progression. In this study, we analyzed the prevalence of a guanine insertion in the MMP-1 gene promoter region in meningiomas and its effect on invasion and prognosis. MATERIAL and METHODS...
AIM: External ventricular drainage (EVD) and lumbar drainage (LD) are the most widely used procedures for continued bloody cerebrospinal fluid drainage. Each has his own advantages and disadvantages. Here, we compared complications and clinical outcomes in patients with World Federation of Neurosu...
AIM: Heat shock proteins (HSP) are an evolutionary conserved family of proteins that serve as molecular chaperones, preventing the formation of nonspecific protein aggregates and assisting proteins in the acquisition of their native structures. Furthermore, HSPs have anti-apoptotic properties and ...
AIM: In this study, 31 patients with a diagnosis of Type II odontoid fractures were reported. All patients were treated with anterior transodontoid screw fixation and clinical outcomes were reported. MATERIAL and METHODS: In this study, the retrospective clinical analysis of 31 patients with traum...
AIM: Computed tomography perfusion (CTP) has recently been used to identify regions of potential ischemia due to cerebral vasospasm, and CTP parameters are able to quantitatively evaluate brain parenchymal perfusion. We performed a meta-analysis as an update of a previous paper published in 2010 a...
AIM: Subarachnoid hemorrhage (SAH) is a devastating neurological injury associated with significant morbidity and mortality. We postulated that lipopolysaccharide (LPS) preconditioning induces neuroprotection against early brain injury (EBI) after experimental SAH. MATERIAL and METHODS: 72 male Sp...
AIM: The aim of this study was to observe the changes in the monoamine neurotransmitter levels of patients with post-traumatic stress disorder (PTSD) and explore whether the neurotransmitter level is correlated with the severity of PTSD. MATERIAL and METHODS: A total of 15 PTSD patients without an...
AIM: One of the most important causes of failed back surgery is the development of epidural fibrosis. Many methods and substances have been used to prevent the development of epidural fibrosis after laminectomy. In this study, effects of “manuka honey” on epidural fibrosis development ...
AIM: We set out to investigate the optimal timing for shunt placement in patients with hydrocephalus after decompressive craniectomy (DC). MATERIAL and METHODS: We studied 63 consecutive patients that underwent DC because of traumatic brain injury, middle cerebral artery infarct or intracerebral h...
AIM: Surgical removal of sphenoorbital meningiomas is challenging for neurosurgeons. The aim of study is to share our experience on sphenoorbital meningiomas and to provide a picture of the current state of the art in surgical treatment of these tumors. MATERIAL and METHODS: The data of 13 cases o...
AIM: Symptoms of thoracic outlet syndrome (TOS) may be vascular, neurological or combined symptoms involving both. Treatment of TOS is generally conservative. Surgical treatment is required when radiological results indicate anatomical abnormality. This study aims to present the surgical outcomes ...
AIM: This study was designed to examine the efficacy of moxonidine, a centrally acting antihypertensive agent that is a selective ligand for I1-imidazoline sites, in a rabbit cerebral vasospasm model. MATERIAL and METHODS: Twenty-four white, male New-Zealand rabbits weighing 2500-3200 gr. were ran...
AIM: This study was aimed to investigate the variations in the spinal nerve root compositions of musculocutaneous nerve and to confirm which spinal nerve root is the main ingredient in participating amount. MATERIAL and METHODS: A total of 20 fresh cadavers were dissected. Brachial plexus and its ...
AIM: We aimed to examine the basilar artery in an experimental subarachnoid hemorrhage (SAH) model both from the ultrastructural and radiological aspects and tried to evaluate the benefit of proanthocyanidin (PC), an antioxidant matter, in reducing vasospasm. MATERIAL and METHODS: A total of 21 mal...
AIM: The incidence of cervical fractures in industrialized countries is about 11.000 cases per year. The objective of our study was to determine which of two treatments was more effective for the management of Type II odontoid fractures. MATERIAL and METHODS: This study involved 108 cervical fract...
AIM: Intracerebral haematoma and brain ischaemia are rare life-threatening complications of cardiovascular surgery. The aim of this study is to present the experience with the neurosurgical treatment of patients with cerebrovascular complications of heart surgery. MATERIAL and METHODS: Patients wi...
AIM: Acromegaly is a chronic disorder characterized by enhanced growth hormone (GH) secretion and elevated insulin-like growth factor–I (IGF-I) levels, usually caused by pituitary adenomas. In this retrospective study, we reviewed our experience with endoscopic endonasal transsphenoidal surg...
AIM: Monitoring of intracranial pressure (ICP), local cerebral blood flow (CBF) and oxygen is part of modern intensive critical care medicine. Preclinical evaluation of newly developed catheters that should monitor several parameters simultaneously is reported poorly in the literature. The goal of...
AIM: Facetectomy is a leading surgical method for stenosis treatment. The objective of this study was to investigate biomechanical effect of graded facetectomy on the lumbar spine using an asymmetrical finite element model. MATERIAL and METHODS: A validated 3-dimensional asymmetrical finite elemen...
AIM: To investigate the effectiveness and safety of intra-arterial tirofiban and urokinase for thromboembolic complications during detachable coil treatment of ruptured intracranial aneurysms. MATERIAL and METHODS: Fourteen patients who had a thromboembolic complication during detachable coil trea...
AIM: Surgical indications for ophthalmic segment aneurysms are getting narrower due in part to success of endovascular techniques like flow diverters. Wide necks, large size, intraluminal thrombus, optic nerve compression or recurrence after endovascular therapy make the case for surgical treatmen...
AIM: The anatomic characters and applicability of the extended pterional transtemporal transtentorial (EPTT) approach versus the subtemporal transtentorial (ST) approach for surgical treatment of petroclival tumors were evaluated. MATERIAL and METHODS: Ten sides from five adult Chinese injected ca...
AIM: To present the magnetic resonance imaging (MRI) characteristics and clinical features of 12 patients with quadrigeminal cistern lipoma. MATERIAL and METHODS: A series of 12 patients with quadrigeminal cistern lipoma were followed up between 2010 and 2013 at the Kayseri Training and Research H...
AIM: We aimed to evaluate cerebral hemodynamic status of preoperative and postoperative revascularization treatment by oxygen extraction fraction (OEF)-magnetic resonance imaging (MRI) in patients with severe cerebrovascular stenosis or occlusive disease. MATERIAL and METHODS: This study enrolled ...
AIM: The endoscopic foraminal approach in foraminal, lateral and far-lateral disc hernias, is a contemporary minimal invasive approach. This study was performed to show that the approach is possible with using the microscope without an endoscope, and even intervention on the discs within the spina...
AIM: Cervical spine is the most kinetic segment of the whole vertebrae. The radiologic imaging methods concern with the morphologic changes but give no functional data. At flexion, spinal cord strains, anterior osteophytic compression increases. At extension, spinal canal gets narrower, cord short...
AIM: To investigate the effects of amifostine, a cytoprotective agent, on pathophysiological changes in vasogenic brain edema induced by an experimental cold injury model and to compare these changes with dexamethasone. MATERIAL and METHODS: A total of 138 rats divided into 6 groups. Brain water c...
AIM: Surgery is a treatment option for medically intractable epilepsy patients. Abnormalities in regional cerebral glucose metabolism, as identified by 18-fluorodeoxyglucose positron emission tomography (FDG-PET) have predictive prognostic value in evaluating the outcome of epilepsy surgery. This ...
AIM: This study evaluated the clinical and economic outcomes of ventriculoperitoneal shunt infections. MATERIAL and METHODS: Patients diagnosed with ventriculoperitoneal shunt infections for the first time between 1 January 2007 and 31 December 2011 were included in this study. Demographic, clinic...
AIM: This study aimed to investigate the microsurgical anatomy of perforating arteries in the hypothalamic area, which are associated with diabetes insipidus. MATERIAL and METHODS: A total of 20 adult cadaver heads soaked in formalin were infused with red latex through the carotid artery and vert...
AIM: Coagulation Factor XIII plays an important role in wound healing by stabilizing the fibrin clot. We hypothesized that Factor XIII administration might promote the repair of cerebrospinal fluid leak sites and lead to resolution of the orthostatic headache in patients with spontaneous intracran...
AIM: Although true posterior communicating artery (PCoA) aneurysms are rare, they are of vital importance. We reviewed 9 patients with this fatal disease, who were treated with endovascular embolization, and discussed the meaning of endovascular embolization for the treatment of true PCoA aneurysm...
AIM: Bacitracin is one of the most frequently used agents for the topical irrigation of the cerebral cortex. The aim of this study is to investigate whether bacitracin has histopathological and ultrastructural effects when applied topically to the cerebral cortex. MATERIAL and METHODS: Twenty-eigh...
AIM: Brain edema developing due to central nervous system trauma is still a significant reason of mortality and morbidity. There is still no definite approach for the medical treatment of brain edema despite many clinical and laboratory studies in recent years. We therefore investigated the effect...
AIM: The objective of this study was to investigate the antifibrotic effect of parenteral administration of alpha-lipoic acid (ALA), which has been reported to reduce fibrosis in the liver, oral mucosa, and peritoneum, in laminectomized rabbits as a potential candidate for the prevention of peridu...
AIM: The effectiveness and risk of cerebral arteriovenous malformations (AVMs) treatment with Onyx embolization combined with Gamma Knife surgery (GKS) were rarely reported. In the present study, we analyzed the radiographic and clinical outcomes of combined Onyx embolization and GKS for cerebral ...
AIM: In this study, our aim was to examine if matrix metalloproteinase expressions (MMP-1, MMP-2, MMP-3) in patients operated with a lumbar disc hernia diagnosis are different in terms of clinical and neuroradiological findings. MATERIAL and METHODS: The study included 80 patients treated with mic...
AIM: The aim of this study was to evaluate effectiveness and safety of epidural anesthesia in elective lumbar microdiscectomy surgery. MATERIAL and METHODS: Twenty-seven patients (78%, female), who were admitted for single level simple microdiscectomy surgery between May 2012 and December 2013 in ...
AIM: To explore clinical features and surgical treatment of asymptomatic meningiomas (AMs). MATERIAL and METHODS: Clinical materials of 122 patients with AMs treated surgically were analyzed retrospectively and the associated literatures were reviewed. RESULTS: There were 39 males and 83 females ...
AIM: Awake craniotomy (AC) with electrical cortical stimulation has become popular during the last ten years although the basic principles were introduced almost 50 years ago. The aim of this paper is to share with the readers our experience in 25 patients who underwent AC with electrical stimulat...
AIM: The sphenoid ostium (SO) is an anatomical reference in transsphenoidal approach surgery. MATERIAL and METHODS: The morphological features of the SO were studied in 352 skull base by 3D-Doctor Demo version. RESULTS: The mean diameters of the SO were measured as 5.8 ± 1.3 mm (right) and 5.9 ± 1...
AIM: Increased thickening of the internal surface of the frontal bone (ISFB) was investigated, regarding possible pressure application to the brain tissue and the changes in bone marrow structure. MATERIAL and METHODS: Morphological analysis of the ISFB was carried out in a total of 300 adult skul...
AIM: This study aimed to investigate the operative procedure for neuroendoscope-assisted microscopic resection of petroclival meningioma to improve prognosis. MATERIAL and METHODS: Twelve patients with petroclival meningioma who had undergone neuroendoscope-assisted microscopic resection at the D...
AIM: Bilateral decompression via unilateral approach is one of the minimally invasive methods used for degenerative spinal stenosis. The aim of this retrospective study was to observe the clinical and radiological results of classic laminectomy and bilateral decompression via unilateral approach a...
AIM: To study the anatomy, histology and fiber relations of the superior medullary velum. MATERIAL and METHODS: Ten previously frozen and formalin-fixed sheep brains were used. The fiber dissection was done using the operating microscope at the Rhoton Anatomy Laboratory of Marmara Faculty of Medic...
AIM: Combination treatment consisting of surgery and pre-or post-operative corticosteroids for chronic subdural hematoma (CSH) tend to have better outcomes than surgery only. However, there are many complications after long-term use of corticosteroids. In this study, we evaluated the clinical outc...
AIM: It remains unknown whether orbital Doppler-ultrasound (ODUS) could be an alternative to other established ancillary tests for the diagnosis of brain death. We investigated the effectiveness of ODUS in the diagnosis of brain death and compared data obtained from ODUS with transcranial Doppler-...
AIM: To discuss the features, feasibility, and safety of a combined bilateral approach in the endovascular treatment of intracranial anterior communicating artery (ACoA) aneurysm. MATERIAL and METHODS: We performed a retrospective analysis of the clinical data of patients with ACoA aneurysm treate...
AIM: Anterior transodontoid screw fixation technique is generally chosen for the management of type II odontoid fractures. The nonunion of type II odontoid fractures is still a major problem especially in elderly and osteoporotic patients. Eleven osteoporotic type II odontoid fracured patients wer...
AIM: We examined whether there is a relationship between vagal nerve root injury and the severity of respiration disorders associated with subarachnoid hemorrhage (SAH). MATERIAL and METHODS: This study was conducted on 20 rabbits. Experimental SAH was induced by injecting homologous blood into th...
AIM: To evaluate the in-vivo three-dimensional (3D) vertebral kinematics of the implanted and adjacent segments after implantation of the interspinous process distracting (ISP) device during various functional activities. MATERIAL and METHODS: Eight patients with lumbar spinal stenosis (LSS) sched...
AIM: The superficial temporal artery (STA) is the one of the terminal branches of the external carotid artery. Three-dimensional anatomical structure of the STA can be evaluated by using three dimensional volume rendering technique (3D-VRT) from acquired two-dimensional contrast-enhanced computeri...
AIM: The sphenoid sinus is deeply situated in the skull and is the least accessible paranasal sinus. The sphenoid sinus is surrounded by vital structures such as the optic nerve and internal carotid artery, and therefore additional radiological assessment of the sphenoid sinus and the related neur...
AIM: Many more additives have been introduced with the development of processed foods. Neural tube defects are congenital malformations of the central nervous system. More than 300 000 children are born with neural tube defects every year and surviving children remain disabled for life. Sodium ben...
AIM: Human pituitary adenomas account for 10% of intracranial tumours and occur in about 20% of the population. They cause hypopituitarism or the compression of adjacent regional structures. However, little is known about the molecular pathogenesis that contributes to the development of these tumo...
AIM: The aim of this randomized study was to compare exercise program to control group regarding pain, back disability, behavioural outcomes, global health measures and back mobility who underwent microdiscectomy operation. MATERIAL and METHODS: Thirty patients who underwent lumbar microdiscectomy...
AIM: We examined the cavernous sinus invasion and tumor biological markers that influence the remission rate. Cavernous sinus (CS) invasion was evaluated radiologically. Tumor biological markers consisting of the tumor cell growth parameter Ki-67 and the cancer cell vasculature marker of vascular ...
AIM: Cases of failed back and spine surgery have increased significantly recently, which leads to patient hesitation in deciding about whether to be operated on. In this article, we present a survey investigating refusal reasons for spinal surgery, and we emphasize the effect of failed back surger...
AIM: To describe a modified technique for the treatment of single level, isthmic spondylolisthesis (IS) MATERIAL and METHODS: Forty-two patients who underwent posterior lumbar interbody fusion (PLIF) with spinolaminar autologous bone graft for the treatment of isthmic spondylolisthesis between May...
AIM: To understand the late anatomical results of surgically treated intracranial aneurysms (IA’s) and to investigate the incidence of recurrent, de novo aneurysms, the natural history of residual aneurysms, and the morphological changes in temporarily clipped vascular segments. MATERIAL and...
AIM: The aim of this study was to report our experience with a 64-channel computerized tomography (CT) scanner as the primary choice on the detection of intracranial aneurysms. Comparison of intracranial aneurysms with the simulated images obtained via three-dimensional computed tomography angiogr...
AIM: The surgical results for foramen magnum decompression (FMD) with and without duraplasty in Chiari Malformation type 1 (CM-1) were compared retrospectively. MATERIAL and METHODS: Thirty-nine cases of CM-1 with and without syringomyelia (SM) were included. There were 18 patients in the nondurap...
AIM: Prolonged exposure to stress mainly affects the cognitive functions of the brain by inducing neuronal damage mediated through oxidative stress. Acorus calamus (AC) has long been used in Indian folk medicine for various central nervous system (CNS) abnormalities. Hence the present study invest...
AIM: Midline anterior skull base meningiomas include olfactory groove meningiomas (OGMs), Tuberculum Sellae meningiomas (TSMs), and planum sphenoidale meningiomas (PSMs). The main surgical challenge in treating these lesions is to excise the tumor totally without causing mortality or morbidity. St...
AIM: To investigate the outcome of glioma resection surgery and changes of pyramidal tract (PT) for patients where PT is immediately adjacent to the tumors, which were revealed by diffusion tensor imaging (DTI) based fiber tracking (FT) technique. MATERIAL and METHODS: 40 patients enrolled. Preope...
AIM: Ethylene vinyl alcohol copolymer (EVOH), its organic solvent dimethyl sulfoxide (DMSO), and N-Butyl 2-Cyanoacrylate (NBCA) are widely used in neurovascular embolization procedures and yet with potential risk of cytotoxicity. The aim of this study was to evaluate the toxic effect of EVOH-DMSO,...
AIM: Catechin is a type of polyphenol, along with epicatechin, epigallocatechin, and epigallocatechin-gallate (EGCG). This study aims to investigate the effect of EGCG, a major metabolite of catechin, which is the principle bioactive compound in green tea, on rats with peripheral nerve injury. MA...
AIM: Perception, definition and tolerance of pain vary individually because of its subjective character. This study aimed to determine the perception differences between patients with mechanical low back pain (MLBP) and their physicians regarding the assessments of the patients’ pain severit...
Aim: Pulmonary arteries are mainly innervated by sympathetic vasoconstrictor and parasympathetic vasodilatory fibers. We examined whether there is a relationship between the neuron densities of hilar parasympathetic ganglia and pulmonary vasospasm in subarachnoid hemorrhage (SAH). Material and M...
Aim: Superior cerebellar artery (SCA) aneurysms are uncommon vascular lesions, thus data about their presentation and clinical management are limited. Our aim was to determine clinical presentation, angiographic findings and mid and long-term clinical and imaging results of endovascular treatment ...
Aim: One of the most common problems with transpedicular screws is screw pullout. This study was conducted to measure the pullout strengths of newly designed transpedicular screws. Material and Methods: The design of the three group screws were conical cored standard pedicle screw (Type A), dual ...
Aim: To describe the origin, the course, and relationships of the labyrinthine artery (LA). Material and Methods: Thanks to a colored silicone mix preparation, ten cranial bases were examined using x3 to x40 magnification under surgical microscope. Results: The LA often arose from the meatal lo...
Aim: Elevation of blood pressure (BP) is common after intracerebral hemorrhage (ICH). Early BP treatment may be beneficial after ICH, but the effect of intensive BP lowering on ICH outcomes is not known and no systematic review or meta-analysis was published regarding this issue. Material and Met...
Aim: Our research was focused on the neuroprotective function of erythropoietin (Epo) in patients with severe closed traumatic brain injury (TBI). Material and Methods: Our model examined the influence of the outcome and neurological recovery in 42 adults with TBI who were admitted to ICU within...
Aim: The feasibility of computed tomography (CT) and two-dimensional (2D) reconstruction-guided screw placement in the occipital condyle (OC) of Chinese patients was investigated. Material and Methods: Twenty (40 OCs) fresh cadaveric specimens with intact superior cervical spine and occipital bon...
Aim: The sacral canal has been frequently used as a passage for minimally invasive diagnostic and therapeutic procedures for spinal diseases. The aim of the present study was to investigate morphometric analyses of the sacral canal, hiatus, and surrounding structures according to different age g...
Aim: Meningiomas are one of the most common benign intracranial tumors, making up nearly one third of all primary intracranial tumors. The majority of meningiomas have benign histological features and total resection is associated with favourable prognosis. Atypical and malignant meningiomas are a...
Aim: To investigate high-intensity zone (HIZ) changes after lumbar posterior dynamic instrumentation. Material and Methods: Our study included 53 patients: 27 patients in group 1, 26 patients in group 2. All patients had one or two levels of degenerative disc disease with an HIZ confirmed by magn...
Aim: The basilar artery (BA) is the prominent median vessel of the vertebrobasilar circulation and usually terminates into two posterior cerebral arteries forming the posterior angle of the Circle of Willis (CW). To tackle different variations of CW, basilar artery acts as a guideline for neurorad...
Aim: This study aimed to investigate the method and efficacy of vertebral reconstruction using the posterior midline approach (PMA) in the treatment of C1-2 spinal tumors. Material and Methods: Twenty-seven patients with C1-2 spinal tumors from the Affiliated Hospital of Luzhou Medical College, wh...
Aim: To determine the feasibility, advantages, and disadvantages of using a robot for holding and maneuvering the endoscope in transnasal transsphenoidal surgery. Material and Methods: The system used in this study was a Stewart Platform based robotic system that was developed by Kocaeli Universi...
Aim: Knowledge of cerebrovascular morphology is integral in planning neuroendovascular interventions, especially for procedures involving placement of stents, flow diverters or stentrievers. There is insufficient data on angiographic normative values of cerebral circulation in the pediatric age gr...
Aim: This study evaluated the neuroprotective effect of intrathecally infused paclitaxel in the prevention of motoneuron death and mitochondrial dysfunction following brachial plexus avulsion injury. Material and Methods: Brachial root avulsion injury was induced in Sprague-Dawley rats. The Paclit...
Aim: To investigate the effects of neurogenically-induced autologous bone marrow-derived mesenchymal stem cells (NIBM-MSCs) in paraplegic dogs without deep pain perception (DPP) secondary to intervertebral disk disease (IVDD). Material and Methods: Seven dogs which could not be improved neurologic...
AIM: Genetic predisposition and some environmental factors play an important role in the development of neural tube defects. Levetiracetam is a new drug that has been approved in the treatment of partial seizures. We aimed in this study to determine the effect of levetiracetam on chick embryos. M...
AIM: To compare the safety and efficacy of spinal anesthesia (SA) in patients undergoing lumbar microdiscectomy (LM). MATERIAL and METHODS: We evaluated 180 patients who underwent LM between 1 January 2012 and 5 July 2013. Demographic, clinical, laboratory, and pre-, intra-, and postoperative info...
AIM: To explore the clinical features and surgical treatment of aggressive meningiomas (AMs). MATERIAL and METHODS: Samples from 55 patients with AMs were analyzed, and their clinical characteristics, molecular biological mechanism, and surgical treatment were studied in combination with the litera...
AIM: Deep venous thrombosis (DVT) and pulmonary embolism (PE) are the most frequent surgical problems and associated with high morbidity and mortality. Neurosurgical patients constitute a unique group where prophylaxis with anticoagulant and antiaggregant agents are relatively contraindicated due ...
AIM: The carpal tunnel syndrome (CTS) is the commonest compressive neuropathy. Electromyography (EMG) is accepted as gold standard in diagnosis of CTS. However, pathologies and variations that are associated with a various findings may lead to failure. MATERIAL and METHODS: Magnetic resonance Imag...
AIM: Spongostan™ is a sterile, water-insoluble, porcine gelatin absorbable sponge, which is widely used as a hemostatic material. The aim of this study is to test the anti-fibrotic capacity of Spongostan™, using a craniotomy model in an experimental rabbit model. MATERIAL and METHODS: ...
AIM: Acute onset spontaneous cerebellar hematoma (SCH) is a neurosurgical emergency with unpredictable natural history and outcome. Specific guidelines are available for management of small (40 mmHg experienced good outcome (p
AIM: Deep brain stimulation (DBS) of the subthalamic nucleus (STN) relieves motor dysfunction in advanced Parkinson’s disease (PD). However, STN DBS treated patients can experience unpleasant and debilitating psychiatric side effects such as depression and impulsivity. The neural basis of th...
AIM: Retrosigmoid approach to the posterior fossa has been a popular and dependable approach for accessing the cerebellopontine angle (CPA) and petroclival region. Although this approach is commonly used, it requires cerebellar retraction and has limitations when the lesion is located ventral to t...
AIM: The superficial temporal artery is one of the main terminal branches of the external carotid artery. This artery ascends through the lateralposterior margin of the zygomatic arch to reach the temporal region of the scalp. The superficial temporal artery divides its frontal and parietal branch...
AIM: The association between post-decompressive hydrocephalus and clinical neurological expression is still unclear. In order to investigate this relationship, the authors analyze series of ventricular morphology and level of consciousness at different clinical stages for patients accepting decomp...
AIM: The molecular mechanism of epileptogenesis in temporal lobe epilepsy is still unclear. Experimental studies have suggested that matrix metalloproteinases have important roles in this process, but human studies are limited. The aim of this study was to assess the expression of MMP-9, MMP-2 and...
AIM: Paraplegia due to ischemia-reperfusion (I/R) injury of the spinal cord is a devastating complication of thoracoabdominal aortic surgery. Cysteinyl leukotrienes are potent mediators of inflammation that are associated with I/R injury. The present study was designed to investigate the role of m...
AIM: Percutaneous laser disc decompression (PLDD) is a one of the well-known minimal invasive treatment methods of disc herniations. The aim of this study is to present our clinical experience and to show the benefits of this technique. MATERIAL and METHODS: A total of 197 patients, who met the cr...
AIM: Spinal anesthesia is an appropriate technique for lumbar spine surgeries of two to three hours duration. The aim of this study is to document our experience on spinal anesthesia administered to the patients with degenerative lumbar spine. MATERIAL and METHODS: A total of 497 patients underwen...
AIM: The connections of posterior commissure are defined. Its fibers mediate the consensual light reflex by interconnecting the pretectal nuclei. The fiber connections from the thalamic, pretectal, superior colliculus and the habenular nuclei are known, but they have not been shown anatomically. T...
AIM: The knowledge of the vasculature around the paracondylar region is important in neurosurgical procedures such as the paracondylar and lateral supracondylar approaches. The objectives of the present study were to determine the prevalence of paracondylar emissary foramina in the adult skull bas...
AIM: The role of statins for treating aneurysmal subarachnoid hemorrhage (aSAH) remains uncertain. In this study, the relevance of different end points was evaluated in order to clarify the action and efficacy of statins. MATERIAL and METHODS: A systematic literature retrieval was carried out to o...
AIM: The study deals with intraoperative rupture of intracranial aneurysms (IOR) during microsurgery, analyzing factors that may be connected with IOR. MATERIAL and METHODS: During the three-year period (2006-2008), 934 patients were operated for aneurysms at the Institute of Neurosurgery, CCS, B...
AIM: To analyse the relationship between the Volume Embolization Ratio (VER), aneurysmal morphological characteristics, and intracranial aneurysm embolization results. MATERIAL and METHODS: Using the clinical and radiological data of 57 cerebral aneurysms treated with detachable coils, VERs were ...
AIM: To explore the effect of early enteral (EN) and parenteral nutritional (PN) support on head-injured patients after craniocerebral surgery. MATERIAL and METHODS: We randomly divided 120 head trauma patients into two groups: those receiving EN and those receiving PN support (60 patients each). ...
AIM: To examine the use of prognostic factors such as age, Glasgow Coma Scale (GCS) score, pupil reactivity and computerized tomography (CT) findings for predicting the prognosis of severe traumatic brain injury (TBI) patients in Turkey. MATERIAL and METHODS: We retrospectively evaluated TBI patie...
AIM: Surgical approaches to the pituitary have undergone numerous refinements over the last 100 years. The fully endoscopic transsphenoidal approach has gained widespread use all around the world. We report the results of a consecutive series of patients who underwent pituitary surgery using a pur...
AIM: The scalp and forehead are the anatomical regions where non-melanoma malignant skin tumors are commonly seen due to direct sun exposure. After surgery for non-melanoma malignant skin tumors located in the scalp and forehead, many complex defects can develop, ranging from sole skin defects to ...
AIM: Sulfadiazine (SD) is a classic antibiotic for intracranial infection. Due to the medical market policy, SD has not been chosen as an essential drug in all the hospitals in China. However, its therapeutic effect is definite and cannot be substituted. The aim of this study was to evaluate the t...
AIM: Surgery for epilepsy is a significant treatment alternative with favorable outcomes in the pediatric age group. In this study we present the surgical outcomes of pediatric population referred to our center. MATERIAL and METHODS: The clinical data of 126 patients (≤18 years) with lesiona...
Magnetic resonance imaging (MRI)-negative epilepsy may be successfully solved with a multidisciplinary approach using invasive recordings, image and signal analysis. The whole methodology used by the epilepsy surgery team is systematically described based on an resistant epilepsy case with all ste...
AIM: The choroid plexus (CP) is a specific anatomical structure producing cerebrospinal fluid into the ventricular space. The three-dimensional anatomical structure of the choroid plexus located within the lateral ventricle may be evaluated by using the three dimensional volume rendering technique...
AIM: The aim of this study was to describe the results of surgery performed in a group of adult patients with tethered cord syndrome with their outcomes. MATERIAL and METHODS: This retrospective study included 56 patients. There were 38 females and 18 males. All patients were older than 18 years....
AIM: Previous studies have shown that carvedilol has a neuroprotective effect in animal models of brain ischemia and brain oxidative damage in vitro. This study was perfomed to investigate the effect of carvedilol on the secondary damage in experimental spinal cord injury (SCI). MATERIAL and METHO...
AIM: To understand the mechanism of intracerebroventricular transplantation of vascular endothelial growth factor (VEGF) genemodified bone mesenchymal stem cells (BMSCs) in rats after cerebral infarction. MATERIAL and METHODS: The middle cerebral artery occlusion ischemia/reperfusion (MCAO I/R) mo...
AIM: The aim was to evaluate three-dimensional structure of the ophthalmic artery (OphA). MATERIAL and METHODS: The raw data of the Three-dimensional Computerized Tomography Angiography (3D-CTA) were transferred to computer and recorded in a software program. RESULTS: The study group consisted of...
AIM: To better understand the clinical characteristics of central neurocytoma (CN), as well as to assess the optimum therapeutic schedule. MATERIAL and METHODS: This was a retrospective study of 32 patients with CN who visited our department between January 2008 and January 2013. We analyzed the ...
AIM: To explore the treatment efficacy of microsurgery for secondary epilepsy from hippocampal lesions. MATERIAL and METHODS: The clinical data, pathological findings, surgical methods and surgical outcomes of 56 patients with secondary epilepsy from hippocampal lesions were retrospectively analyz...
AIM: To evaluate the roles of craniotomy and aspiration in the treatment of pyogenic brain abscess throughout 30 years of computerized tomography. MATERIAL and METHODS: A retrospective study of 224 patients who were surgically treated at Istanbul Medical Faculty, Department of Neurosurgery betwee...
AIM: Tuberculum sellae meningiomas (TSMs) are suprasellar lesions that commonly extend to the medial side of the optic nerve, resulting in visual impairments in the affected eye as the initial and most common symptoms. The primary goal of surgical treatment for TSM is the preservation or improveme...
AIM: The function of the circle of Willis, an arterial polygon, is to protect the brain from ischemia. The aim of this study is to define the structural characteristics of the circle of Willis within the Turkish adult population, along with variations and arteries involved in the measurement of di...
AIM: To implement a surgical technique consisting of simplified incisions that allows all required procedures to be performed in one single operation for the purpose of reducing surgical stress in experimental animals. MATERIAL and METHODS: Experimental animals (rats) were assigned to one of four ...
AIM: We assessed the safety and effectiveness of the Enterprise stent in treating atherosclerotic intracranial arterial stenosis (AIAS). MATERIAL and METHODS: This was a retrospective study conducted with 60 consecutive patients with 62 AIAS lesions who received the Enterprise stent at the Departm...
AIM: Prediction of outcome for surgical patients with primary pontine hemorrhage (PPH) is seldom reported although many predictors from clinical and radiological features have been identified in conservative patients. The purpose of this study was to assess the prognostic factors affecting the 30-...
AIM: Hypertensive cerebral hemorrhage (HCH) is a potentially life-threatening cerebrovascular disease with high mortality. In case of a massive hematoma, surgical drainage is a crucial treatment. The aim of the present study was to assess the efficacy of the endoscope-assisted keyhole technique in...
AIM: To determine the factors in choosing the right surgical technique for patients with cervical spondylotic myelopathy. MATERIAL and METHODS: 60 patients were operated with anterior median corpectomy and anterior fusion for cervical myelopathy in Ankara Atatürk Education and Research Hospital be...
AIM: The objective of this study was to investigate the effect of using 2 different surgical techniques (curette or high-speed drill) in anterior cervical discectomy surgery on the healing of cases. MATERIAL and METHODS: Fifty-four operated cervical disc hernia cases were retrospectively examined ...
AIM: Cervical disc herniation (CDH) can be treated using different anterior and posterior methods. Anterior cervical discectomy and fusion (ACDF) is currently gold standard and provides bony fusion and good clinical outcome. Recently many studies reported good clinical and radiological outcomes in...
AIM: The purpose of this study was to investigate the risk factors for the development of the central large disc herniations and to compare the demographic data between central mass prolapse and broad-based central disc herniation. MATERIAL and METHODS: Between 2002 and 2007, 1630 patients underwe...
AIM: Spinal Cord Injury (SCI) is a devastating health problem both for the patient and the clinician. Numerous treatment modalities have been studied to reverse the effects of spinal cord injury. Herein is reported the effects and the comparison of Alpha Lipoic Acid and N-Acetyl Cysteine on rats w...
AIM: To investigate the effectiveness of rat adipose tissue-derived (rAT) mesenchymal stem cell (MSC) transplantation on the functional restoration and regeneration of spinal cord injury (SCI). MATERIAL and METHODS: Six of 48 Wistar albino rats were sacrificed to obtain MSCs, and the remaining rat...
AIM: The human tail is a term to describe skin-covered protrusions in the lumbosacral and coccygeal region, ascribing to the resemblance to the tails in the animals. The first reports dates back to second half of the 19th century, the etiological bases could not been ascertained yet. They are main...
AIM: The aim of this retrospective study was to evaluate the follow-up results of patients who received late-term surgical treatment for peripheral nerve lesions caused by penetrating injuries. MATERIAL and METHODS: The study included 25 patients who underwent surgery for peripheral nerve injuries...
AIM: Pituitary tumors are generally benign, but may be associated with some morbidities. The aim of this study was to identify the risk factors for pituitary tumors. MATERIAL and METHODS: A population-based case-control study on the potential risk factors of pituitary tumors was conducted in Chin...
AIM: To explore the indications, operation techniques and benefits of pedicled middle turbinate mucosal flap in endoscopic skull base reconstruction. MATERIAL and METHODS: The patients, who underwent endonasal endoscopic surgery from October 2009 to June 2010 in our department, were involved in t...
AIM: To observe the outcome of burr hole evacuation of extradural hematoma (EDH) in mass head injury. MATERIAL and METHODS: This study included patients of any age who sustained head injury in the earthquake of October 8, 2005, were diagnosed as EDH on computed tomography (CT) scan and were admitt...
AIM: Transferrin receptor (TfR) has been used as a target for the molecular cancer therapy due to its higher expression in a variety of tumors. Anti-TfR antibodies combined with chemotherapeutic drugs has showed great potential as a possible cancer therapeutic strategy. In our study, we investigat...
AIM: To present the clinical features and outcomes of rare vascular complications of percutaneous balloon compression (PBC) for trigeminal neuralgia. These complications were treated by the endovascular technique. MATERIAL and METHODS: In this retrospective study, 5 patients with trigeminal neural...
AIM: To report angiographic and clinical results obtained in patients with supraclinoid segment blood blister-like aneurysms (BBLAs) of the internal carotid artery treated with stent-assisted coil embolization. MATERIAL and METHODS: A retrospective review of patients, who were treated for a ruptur...
AIM: To present the outcomes and follow-up results of endovascular coil embolization in patients with ophthalmic segment aneurysms (OSAs). MATERIAL and METHODS: The data of 42 patients with 44 OSAs (7 ruptured and 37 unruptured), who underwent treatment using endovascular techniques between Janua...
AIM: To describe the classification of aneurysms coexisting with arteriovenous malformations (AVMs) and their endovascular treatment. MATERIAL and METHODS: Based on the basis of radiological findings and clinical features, 59 aneurysms coexisting with AVMs were classified into four different type...
AIM: To estimate the effect of a multimodal prevention program on controlling surgical site infection (SSI) risk among neurosurgical patients. MATERIAL and METHODS: This prospective study was conducted among adult patients who have undergone neurosurgical procedures in a tertiary-care university-...
AIM: To explore the feasibility and reliability of CO2 laser soldering on the reconstruction of dura mater in the minipig model. MATERIAL and METHODS: Ten minipigs were divided into 2 groups as Group A (n=5) and Group B (n=5). Bilateral fronto-parietal craniotomy was performed and 2cm×1cm dural de...
AIM: This study aims to apply computed tomography perfusion imaging (CTPI) technology under in vivo conditions in order to explore its reliability and accuracy in evaluating the rat acute cerebral ischemia-reperfusion model (RACIRM). MATERIAL and METHODS: The thread embolism method was used in 48 ...
AIM: To identify key determinants of lumbar disc herniation (LDH) patients’ satisfaction and to evaluate the efficiency of an artificial neural network (ANN) model to prognosticate satisfaction derived from the hospital stay in this specific patient group. MATERIAL and METHODS: A single item...
AIM: We conducted a novel classification system of degenerative lumbar spinal stenosis (DLSS) based on clinical manifestations and imaging (computed tomography and magnetic resonance imaging) features. We chose different minimally invasive surgical procedures according to our system. Clinical para...
AIM: To assess the clinical outcomes and compare the segmental range of motion (ROM) at the implanted L4-L5 level, the cranial and caudal adjacent levels, and the ROM of the whole lumbar spine after semi-rigid lumbar fusion with 2 different devices. MATERIAL and METHODS: Patients with neurogenic c...
AIM: The intervertebral disc starts to degenerate when a human being begins to stand and learn to walk. It is known that many extrinsic, intrinsic and genetic factors play a role in disc degeneration. In this study, we examined whether the matrix metalloproteinase 11 might be associated with inter...
AIM: To compare both the clinical characteristics and incidence of postoperative cervical nerve root palsy in cervical spondylosis patients treated by posterior total laminectomy, decompression and instrumentation with two different common body positions, traction bed and plaster bed. MATERIAL an...
AIM: Interventional pain therapies are usually based on destruction of the related pain-conducting pathways. Current procedures targeting pain have replaced conventional pain treatment modalities while being less invasive. In this study, we investigated the feasibility of the endoscopic percutaneo...
AIM: Epineural adhesion after peripheral nerve surgery is common. The purpose of this study was to evaluate the macroscopic and histopathologic effects of topical mitomycin C and daunorubicin on epineural scar formation. MATERIAL and METHODS: In this study, we used 15 rats (30 nerves). Two test gr...
AIM: The present study aimed to evaluate the microsurgical outcome in post-traumatic peripheral nerve injuries and its correlation with time since injury and the type of the operative procedure performed. MATERIAL and METHODS: All the patients admitted to our center with the diagnosis of post-trau...
AIM: To study and summarize our experience with the subtemporal transtentorial approach for resection of petroclival tumors. MATERIAL and METHODS: Twenty-eight patients who suffered from petroclival tumors and underwent tumor resection via a subtemporal transtentorial approach between October 2010...
AIM: Pineal tumors represent uncommon intracranial tumors with highly diverse histologic subtypes. There still exists a controversy in literature about what influences overall survival and outcome. MATERIAL and METHODS: We present the results of 48 patients with pineal tumor treated either by ster...
AIM: To determine whether specific clinical and radiographic factors predispose arteriovenous malformations (AVMs) presenting with seizure and to predict the seizure risk for individual AVM patients. MATERIAL and METHODS: Clinical features and cerebral angiograms of consecutive 45 unruptured AVM p...
AIM: The aim of this study was to find out if vagal nerve stimulation (VNS) affect the generalized-partial seizure count and medical treatment in adult drug resistant epilepsy patients. MATERIAL and METHODS: Twenty adult patients who were diagnosed with drug-resistant epilepsy were investigated re...
AIM: Vagal nerve stimulation (VNS) is an effective method of treatment for epilepsy patients either unresponsive to medical therapy or not suitable for resective surgeries. We designed an experimental study on Wistar Albino Glaxo rats from Rijswijk (WAGRij) to investigate the effects of VNS on a n...
AIM: Intracranial internal carotid artery aneurysms are an extremely rare cause of spontaneous epistaxis, with a few documented cases. The management of such cases is challenging due to the relative anatomical inaccessibility of the bleeding point. The aim of the present study was to acquaint the ...
AIM: A pericallosal lipoma is a fat-containing lesion occurring in the interhemispheric fissure closely related to the corpus callosum, which is often abnormal. This is the most common location for an intracranial lipoma. In this study, we aim to report on the clinical and radiographic aspects of ...
AIM: Ventriculoperitoneal (VP) shunt insertion remains the most popular method for the treatment of hydrocephalus despite its associated complications. We assessed VP shunt survival in a group of patients who had developed hydrocephalus following cranial surgery. MATERIAL and METHODS: A retrospec...
AIM: The aim of this study was to evaluate the clinical safety, feasibility and efficacy of transplantation of neural precursor cells (NPCs) in the treatment for Parkinson’s disease (PD). MATERIAL and METHODS: Twenty-one patients, aged 42-79 years (median age 57.33 years), participated in th...
AIM: To investigate the variation and significance of malondialdehyde (MDA) and superoxide dismutase (SOD) in brain tissue after secondary brain injury (SBI) with seawater immersion in rats. MATERIAL and METHODS: We randomly divided 163 male Sprague Dawley rats into 4 groups, as normal (Group A), ...
AIM: Surgical anatomy concerning the posterior craniovertebral region in fresh human cadavers was studied to provide most accurate information for the surgical approach. MATERIAL and METHODS: In thirty-two fresh human cadavers, the distance from the posterior tubercle to the sulcus of vertebral a...
AIM: Lumbar disc surgery can be performed under general anesthesia or regional anesthesia methods. There are long-standing discussions between neurosurgeons, orthopedic surgeons and anesthesiologists concerning the use of epidural anesthesia in lumbar surgery. The results of this study’s 700...
AIM: The aim of this study is to compare the different types of fusion materials known as PEEK cages used during anterior cervical discectomy (ACD) surgery. MATERIAL and METHODS: A total of 67 patients were operated and evaluated retrospectively under two groups (group A: 35 PEEK cage patients, g...
AIM: An underestimated evaluation of systemic organs in cases with spinal fractures might jeopardize the intervention for treatment and future complications with an increased morbidity and mortality are almost warranted. In the present study, a retrospective analysis of spinal fracture cases assoc...
AIM: To compare the clinical outcome and complications between Zero-P implant and cage with anterior plate in patients undergoing anterior cervical discectomy and fusion (ACDF). MATERIAL and METHODS: 50 patients underwent ACDF operation of which 23 patients had Zero-P implanted and 27 had cage an...
AIM: The efficacy of vertebroplasty on acute vertebral compression fractures (VCFs) has not yet been established. This study, focusing on patients with acute VCFs, aims to compare therapeutic effects between vertebroplasty and vertebral perforation without cement injection. MATERIAL and METHODS: ...
AIM: To investigate the stress distribution on artificial atlantoaxial-odontoid joint (AAOJ) components during flexion, extension, lateral bending and rotation of AAOJ model constructed with the finite element (FE) method. MATERIAL and METHODS: Human cadaver specimens of normal AAOJ were CT scanne...
AIM: Spinal cord injuries negatively affect the individuals and the life quality of their families due to neurological deficits caused by trauma. The prevalence of spinal cord injury is 15-45/1 million in the world. Caffeic acid phenethyl ester (CAPE) is the most active component of propolis and h...
AIM: The aim of this study was to investigate the effects of metamizole sodium on neural tube development in the early stage chick embryo model that complies with the first month of embryonic development in mammals. MATERIAL and METHODS: A total of 40 fertilized chicken eggs were divided into 4 eq...
AIM: Insular gliomas have traditionally been approached through variations of large frontotemporal craniotomies exposing much of the Sylvian fissure. Due to the importance of many structures exposed by such an approach, a less-invasive approach to these lesions is a viable alternative for resectio...
AIM: Glioblastoma (GBM) is the most common and the most aggressive primary brain tumor with poor prognosis. We aimed to evaluate the association between immunohistochemical expression of survivin and angiogenic parameters (microvessel density and vascular pattern) in patients who underwent surgery...
AIM: To present a new simple disposable tubular retractor which provides fully endoscopic resections of the intraaxial brain lesions. MATERIAL and METHODS: A total of 13 patients underwent surgical resection of an intraaxial brain lesion larger than 3 cm with a fully endoscopic approach using the ...
AIM: We have applied diffusion tensor imaging (DTI) to interrogate microstructural changes in white matter integrity in a widely used middle cerebral artery occlusion (MCAO) model of cerebral ischemia. MATERIAL and METHODS: We performed ex vivo DTI 35 days after 60 minutes transient focal ischemia...
AIM: To report the angiographic and clinical results achieved in endovascular treatment of ruptured posterior circulation cerebral aneurysms over a 3-year period. MATERIAL and METHODS: A retrospective analysis of 45 patients was performed between June 2008 and June 2011. Clinical follow-up was ac...
AIM: To present our experience on transarterial treatment of dural arteriovenous fistulas (DAVFs) with ONYX in adult patients. MATERIAL and METHODS: Between March 2008 and November 2012, 27 adult patients with DAVFs treated by transarterial ONYX embolization were included. Clinical data, including...
AIM: We evaluated the procedural outcomes of intracranial aneurysm treatment with the Silk device and its relation with operator experience. We also detailed some technical points we learned throughout our experience. MATERIAL and METHODS: One hundred and six consecutive patients with intracranial...
AIM: To report patient and procedure-related factors affecting the angiographic and clinical outcome in patients treated with the Silk device. MATERIAL and METHODS: All patients with intracranial aneurysms in whom treatment was attempted with the Silk flow diverter by our neurovascular team betwe...
AIM: To explore the effect of simvastatin on proliferation of vascular smooth muscle cells (VSMCs) during delayed cerebral vasospasm (dCVS) after subarachnoid hemorrhage (SAH). MATERIAL and METHODS: Thirty-six male New Zealand White rabbits were randomly divided into three groups: 1) Control group...
AIM: We set forth to identify predictors of symptomatic vasospasm in patients with subarachnoid hemorrhage (SAH). MATERIAL and METHODS: We used multivariate logistic regression analysis of the prospective, hospital based, single center register of the Department of Neurosurgery, University of Debr...
AIM: This study was designed to elucidate the neuroprotective effect of resveratrol in a mouse model of bilateral common carotid artery occlusion (BCCAO). MATERIAL and METHODS: Sixty male C57BL/6 mice, weighing 20–24 g, were used in our experiments. The mice were randomly assigned into thre...
AIM: Because of the need for effective method to determine the severity of head trauma, the importance of biomarkers is recognized recently. This study aims to analyze the values of sera levels of some biomarkers and the relation with their tissue levels in acute head injury. MATERIAL and METHODS...
AIM: This study was designed to determine the anatomic position of the asterion and the relationship between the asterion and the transverse sigmoid sinus junction (TSSJ) in a Chinese cohort. MATERIAL and METHODS: Venous computed tomography (CT) angiography was performed in 32 patients to simultan...
AIM: Cadaveric studies have a great impact on neuroanatomy learning. Cadaver preparation may take a lot of effort, especially at the phase of intravascular color filling. The authors describe their silicone dye technique and a novel mixture which is self-curing, quick to prepare and easy to inject...
AIM: To investigate the application of neuronavigation in the implantation of depth electrodes in patients with epilepsy. MATERIAL and METHODS: Thirty-six patients with epilepsy who were implanted with depth electrodes using neuronavigation were assessed for accuracy of implantation and associated...
AIM: To investigate the effect of intrathecal anti-fibroblast growth factor-2 (FGF-2) antibodies on the mechanical allodynia and activation of spinal cord astrocytes in a rat model of neuropathic pain. MATERIAL and METHODS: Forty male Sprague-Dawley rats were randomly divided into 4 groups (Each g...
AIM: To demonstrate the effect of glatiramer acetate (GA) in chick embryos on neural tube (NT) development, and to explore its effects of Foxp1, apoptosis, and N-cadherin. MATERIAL and METHODS: One hundred fertile, specific pathogen free eggs were divided into 5 groups for this study. The eggshell...
AIM: Failure of surgery for lumbar disc herniation (LDH) can be commonly caused by recurrence. There are many debates regarding the risk factors of recurrent LDH (rLDH) and it is very difficult to define them because many clinical and complicated biomechanical parameters are involved. The purpose ...
AIM: To describe the demographics, clinical and radiologic presentation, surgical considerations, and clinical outcomes associated with spinal osteoblastoma. MATERIAL and METHODS: A spinal tumor database of 522 patients treated surgically at a single institution between January 2002 and June 2012...
AIM: To evaluate the efficacy, feasibility and safety of a percutaneous anatomical vertebral body reduction for the treatment of VCF (vertebral compression fracture) linked to malignancy. Vertebroplasty and percutaneous kyphoplasty have played essential roles in the treatment of painful vertebral ...
AIM: To analyze retrospectively the surgical management of reducible atlantoaxial dislocation (AAD), basilar invagination (BI) and Chiari malformation (CHM) with syringomyelia through a single-stage posterior approach. MATERIAL and METHODS: Forty-three patients with reducible AAD, BI and CHM with ...
AIM: To evaluate the neuroprotective effects of adalimumab in an experimental spinal cord injury model and compare them with those of the widely-used methylprednisolone. MATERIAL and METHODS: Forty male Wistar rats were divided into 5 as the sham, trauma, adalimumab, methylprednisolone, and adali...
AIM: To assess the feasibility and efficacy of TLIF with unilateral pedicle screw and contralateral percutaneous lumbar transfacet screw fixation for the treatment of lumbar degenerative disorders. MATERIAL and METHODS: A series of computed tomography (CT) digital images from 60 patients (30 males...
AIM: Misplacement of pedicle screw is the serious complication of spinal surgeries. Intraoperative imaging techniques and navigation systems are currently in use for the prevention of this complication. The aim of this study was to document the results of our experience with the navigation and int...
AIM: To evaluate the effects of NMDA receptor antagonist memantine and pancaspase inhibitor Q-VD-Oph in combination or alone in experimental spinal cord injury. MATERIAL and METHODS: 45 male Sprague-Dawley rats were divided into five groups. Spinal cord injury was created with the clip compressio...
Review
(77)Back pain is a widespread and debilitating condition that significantly impairs quality of life, often eroding patients’ sense of autonomy and independence, and contributes to global disability rates. The initial management of back pain generally follows a conservative approach, encompassing physica...
Definitive diagnoses in neuro-oncology often require invasive procedures, such as surgical biopsies to obtain tissue for histopathologic and molecular interrogation. Patients with small lesions that may respond to nonsurgical treatments, such as chemoradiation, may nevertheless undergo surgery wit...
AIM: To systematically evaluate the existing literature regarding adjuvant or primary treatment of chronic subdural hematoma (cSDH) with tranexamic acid (TXA). MATERIAL and METHODS: This systematic review followed the parameters set by the Preferred Reporting Items for Systematic Reviews and Meta...
AIM: To systematically review the existing literature on the neurotoxic effects of microplastics (MPs) on the brain. MATERIAL and METHODS: This review was conducted following the Preferred Reporting Items for Systematic Reviews and Meta- Analyses guidelines. The following keywords were used for th...
AIM: To conduct an updated systematic review and meta-analysis to compare the efficacy and safety between total disc replacement (TDR) and fusion surgery for lumbar degenerative disc disease (LDDD). MATERIAL and METHODS: We comprehensively searched meta-analyses comparing TDR with fusion through t...
The process of head transplantation is reviewed according to Cartesian philosophy. Recent developments in head transplantation were followed with great interest in the media and society. The surgeon Sergio Canavero stated that he could perform head transplantation. His ethical approaches to the pr...
AIM: To analyze the current literature on neurocutaneous melanosis (NCM), as well as, our cases, in order to better define the prognosis and the presence of risk factors affecting it, thus, offering better information to the parents. MATERIAL and METHODS: Two cases observed at the Pediatric Neuros...
AIM: To evaluate the clinical outcomes of incidental meningiomas (IM) treated with stereotactic radiosurgery (SRS) or observation. MATERIAL and METHODS: The PubMed, Cochrane Library and MEDLINE (Ovid) databases were comprehensively searched for eligible studies about IM that were managed with seri...
AIM: To assess the results, effectiveness, safety, and potentials of coiling and clipping of ruptured basilar apex aneurysms. MATERIAL and METHODS: Included in this study were articles comparisons of outcomes of endovascular coiling and clipping of ruptured basilar apex aneurysms, published in the...
AIM: To describe the history of the anterior approach to the lumbar spine from the beginning to the minimal invasive techniques that the authors have developed, and to discuss its advantages and drawbacks. MATERIAL and METHODS: The authors collected published data on the evolution of the anterior ...
The general aim of the neurosurgical practice is to both anatomically and physiologically preserve functional neurological structures to ensure a higher quality of life. Intraoperative neuromonitorization (IONM) helps the neurosurgeon physiologically identify and assess the functional integrity of...
AIM: To review the correlation between vitamin D (VD) and several common neurological disorders with the aim of providing directions and ideas for using VD to treat neurological disorders. MATERIAL and METHODS: VD, 1,25-dihydroxyvitamin D3, stroke, epilepsy, and cognitive dysfunction were used as ...
Alzheimer's disease (AD) is the most common type of dementia that causes disabilities in memory formation and activities of daily living. Unfortunately, pharmacologic treatments have minimal and short-lasting effects on AD. With the increasing aging population, investigations into therapeutic stra...
AIM: To evaluate all serum biomarkers in sports-related concussion injury (SRC) to determine diagnostic validity, changes with symptom severity, and return to play, as well as detect early changes in serum concentration. MATERIAL and METHODS: Studies were searched in various electronic databases (...
AIM: To define a new approach for primary vertebral tumors by discussing them in the light of 2020 World Health Organization (WHO) classification of bone tumors. MATERIAL and METHODS: In this study, we have discussed primary vertebral tumors in light of the 2020 Updated WHO Classification of Soft...
Intracranial dural arteriovenous malformations are unique and rare pathological entities. They may present with a wide spectrum of clinical pictures and the natural disease course is also variable. The main determinant in prognosis and indication for and response to treatment is the venous archi...
The anterior cerebral artery (ACA) varies considerably and this complicates the description of the normal anatomy. The segmentation of the ACA is mostly agreed on by different authors, although the relationship of the pericallosal and callosomarginal arteries (CmA) is not agreed upon. The two basi...
So far, animal models have helped us better understand the pathophysiology of the ischemic brain damage but they could not contribute so much to clinical practice. The discrepancies in results regarding neuroprotective agents in animal experiments compared to clinical trials have not been solved. ...
The middle cerebral artery (MCA) covers a large part of the cerebral hemispheres and is therefore exposed during surgical intervention in this area. Aspects of cerebral branches tend to vary, different branching patterns can be described, and several anomalies can be observed. Knowledge of these v...
Current practice of neurosurgery depends on clinical practice guidelines and evidence-based research publications that derive results using statistical methods. However, statistical analysis methods have some limitations such as the inability to analyze nonlinear variables, requiring setting a lev...
Although endoscopic techniques have many advantages including improved visualization and magnification, they are also associated with limitations. The objective of this review is to discuss the practical aspects that can reduce complications after endoscopic procedures, and their management. The r...
Although several studies have suggested perihematomal edema (PHE) is associated with prognosis in intracerebral hemorrhage (ICH), the results are different in other studies. The purpose of this study was to evaluate the prognostic role of PHE in ICH. According to PRISMA guidelines, a systematic li...
Traumatic brain injury (TBI) is the leading cause of mortality and morbidity in children and adults throughout the world. It is urgent to ameliorate TBI damage and reduce the disability and case-fatality rate. Stem cell therapy is another medical revolution after drug and surgical medication. Mese...
The purpose of this article was mainly to focus on whether hypothermia improves mortality and/or the chance of a good neurological outcome compared with the standard of care alone in patients with traumatic brain injury (TBI). We used a comprehensive search strategy. Articles were eliminated in a ...
Variations and anomalies of the posterior cerebral artery (PCA) have several clinical implications, including assisting in understanding the clinical signs of a stroke. Anomalies have been described previously; however, few reports mention the origins, absence, duplication and triplication of the ...
Every year, natural or people-generated disasters disrupt the functioning of society, causing human, and material loses, which lead to an increase in the demand for medical attention. In the morning of September 19, 2017, a 7.1-magnitude earthquake struck Mexico City and four other cities, leaving...
AIM: To compare 1 and 2 level posterior lumbar interbody fusion (PLIF) to transforaminal lumbar interbody fusion (TLIF) techniques in an effort to elucidate trends in overall radiological and clinical outcome, rate of complications, operation time, length of hospital stay, reoperation rate, pseudo...
Adult craniopagus twins aged 29 years who succumbed to the surgical separation are being presented posthumously. Neuroimaging studies had revealed a total type 3 craniopagus with a common superior sagittal sinus beginning at its distal half and draining into a common Torcular Herophili. In July 2003...
Different portions of the SMA appear to be engaged by different types of neurological functions. It is important to identify the functional activation of SMA in terms of planning the surgical strategy. Our unpublished data from M.D. Anderson suggest that resection of the site of SMA activation ba...
The modern age of psychosurgery can be said to have started with Moniz and Lima. Freeman and Watts subsequently revised and popularised the lobotomy procedure. Moniz shared the 1949 Nobel Prize for medicine or physiology for his discovery of the therapeutic value of leucotomy in certain psychoses...
The Executive Committee of the Neurosurgical Society that functioned during 1988-1990 period under the leadership of Dr's Tunçalp Özgen and Yücel Kanpolat realized many major accomplishments. Each of these senior neurosurgeons served as presidents of the Society for one year. Dr. Nur Altınörs wa...
Elucidation of the endogenous cell survival pathways involved in ischemic tolerance (preconditioning) and postconditioning has significant clinical implications for preventing neuronal damage in susceptible patients. Ischemic tolerance is a phenomenon in which the brain protects itself against fu...
The use of stem cells in the treatment of traumatic spinal cord injury (SCI) in recent years has provided promising results. Different sources of cells for transplantation have been used, including neural progenitor cells (NPCs), neural stem cells (NSCs) or embryonic stem cells (ESCs). Experiment...
AIM: Sacroiliac joint dysfunction is a disorder presenting with low back and groin pain. It should be taken into consideration during the preoperative differential diagnosis of lumbar disc herniation, lumbar spinal stenosis and facet syndrome. MATERIAL and METHODS: Four cases with sacroiliac dy...
Vestibular schwannomas, meningiomas and epidermoids account for a vast majority of the lesions occurring in the cerebellopontine angle (CPA). Neoplastic and non-neoplastic pathologies other than these tumors constitute 1% of all lesions located in the CPA. The aim of this study was to reveal our ...
CXCL12 signaling at CXCR4 is important in glioblastoma growth promotion as a migration-directing chemokine and as a mitosis-stimulating cytokine system. Recent developments in other areas of medicine may have made it now possible to comprehensively block glioblastoma's use of CXCL12 signaling. CX...
Carpal tunnel syndrome (CTS) is a common focal peripheral neuropathy. Increased pressure in the carpal tunnel results in median nerve compression and impaired nerve perfusion, leading to discomfort and paresthesia in the affected hand. Surgical division of the transverse carpal ligament is preferr...
AIM: Timing of shunt insertion in infants with myelomeningocele (MM) and hydrocephalus (HCP) has been debated. Many authors have suggested to perform the repair of MM and shunt insertion during same operation. However, there is also an opposite view. MATERIAL and METHODS: We analyzed retrospective...
AIM: The patients who undergo neurosurgical procedures are at high risk for perioperative deep vein thrombosis and pulmonary embolism. Pharmacological prophylaxis with mechanic prophylaxis is a safe and effective way of preventing deep vein thrombosis and pulmonary thromboembolism in neurosurgery....
The trigeminal artery is the largest of the fetal carotid-basilar anastomotic arteries, and it persists for the longest embryonic period. The artery usually involutes after the development of the posterior communicating artery. The exact causes of persistence of this primitive vessel into adulthoo...
Armored brain or chronic calcified subdural hematoma is a rare complication of cerebrospinal fluid diversion with few cases reported in the literature. Seventeen patients with this pathology have been published. A complete review of the literatures regarding this topic has been collected and discu...
Subarachnoid hemorrhage (SAH) due to intracranial aneurysm rupture is a complex clinical disease with high mortality and morbidity. Recent studies suggest that early brain injury (EBI) rather than vasospasm might be responsible for morbidity and mortality within 24-72 hours after SAH. The rise in ...
AIM: The aim of this study is to evaluate results of surgery in Degenerative Spondylolisthesis (DS) patients over 70 years old. MATERIAL and METHODS: This is a non-randomized retrospective analysis of the clinical outcome of 34 patients older than 70 years who underwent surgery. At the end of two-...
Supra- and infratentorial acute epidural hematoma (SIEDH) is a common type of posterior fossa epidural hematoma (PFEDH), representing 11– 64% of all PFEDHs. Although SIEDH is associated with typical characteristics, it might be difficult to diagnose when presenting as infratentorial acute ep...
The role of three-dimensional computed tomography angiography (3D-CTA) in management of aneurysms has been fairly acknowledged in the past. There have been numerous articles in the literature regarding its potential threat to the conventional “gold standard”, i.e. digital subtraction a...
AIM: The aim of this study was to systematically review the relevant literature to develop a benchmark for the incidence of adjacent segment degeneration (ASDeg) and adjacent segment disease (ASDis) following the posterior dynamic stabilization (PDS) procedure and to investigate whether conclusion...
Malalignment of the spine can be defined as a spinal deformity. Spinal deformities may be secondary to a variety of causes including congenital anomalies, neuromuscular disorders, skeletal dysplasies, and some other developmental disorders. Pediatric spine deformities may be accompanied by neural ...
This chapter explains the significance of the sagittal balance of the spine and spinal and pelvic parameters associated with sagittal balance of the spine. Herein the parameters related to spinal sagittal balance are C7 plumb line, gravity line, pelvic incidence, sacral slope, pelvic tilt and spin...
Lumbar spine instability develops as a result of a gradual degenerative process. Segmental instability causes chronic low back pain and decreases the quality of life of the patient. The deformity that develops secondary to lumbar instability is seen as coronal and sagittal imbalance. The diagnosis...
Congenital scoliosis is the deformity of the spine that is caused due to intrauterine development anomaly of spine. The defects developing during formation and segmentation periods of the spine may cause a vertebra anomaly. These defects of the vertebra may cause a serious deformity and pulmonary ...
Measurement of a curvature angle higher than 10 degrees on anterior-posterior X-rays is known as scoliosis. Idiopathic scoliosis forms 80% of coronal structural deformities. Deformity causes coronal, sagittal and axial plane imbalance. Idiopathic scoliosis is divided into three sub-groups by age; ...
Adult deformity, which occurs with degeneration of the spine, is a pathology that has been seen usually in the older population. The patients with adult deformity have a pain and disability that develops within time. Adult deformity is different from adolescence idiopathic scoliosis because of its...
A Cobb angle measurement, the angle between upper end plate of T5 and lower end plate of T12, higher than 40 degrees known as kyphosis. Although various etiologies cause kyphosis, the best-known form, Scheuermann’s kyphosis causes disorder in sagittal balance. Surgery should be considered fo...
Iatrogenic spinal deformities can cause either sagittal or coronal imbalance. They consist of flat back syndrome, post-laminectomy kyphosis, proximal junctional kyphosis, failing of a spinal instrument, pseudoarthrosis, infection and using of instruments that cause anterior compression. We discuss...
Spinal deformity is one of the problematic issues of spine surgery. The variety of spinal deformities and the differences in pathomechanism require different treatment methods. Another important factor is that some deformities exist with spinal instability. The aim of surgical treatment in spinal ...
Minimally invasive surgery is currently a goal for surgical intervention in the spine. The effectiveness of endoscopic thoracic spine surgery and technological improvements are considered to be two factors that are routinely applied to spine surgery, particularly in spine deformity surgery practic...
The main aim of the rehabilitation programs following surgical correction of spinal deformities is to restore the patient to full function as early as possible without compromising the integrity of the surgical intervention. The most important issue that need to be considered includes avoiding str...
Deformity of spine is the structural deformity in sagittal, coronal or both planes due to many causes. Due to the complex structure of deformity, complications of deformity surgery are different from other surgeries performed for the spine. Being aware of the complications that can cause balance p...
Tumor-to-tumor metastasis is a well recognized phenomenon. Although any tumor may be potential recipient of metastasis, renal cell carcinoma and meningioma are the most common malignant and benign recipients, respectively, whereas the lung and breast are the most common metastatic donors respectiv...
Surgical robotic systems have been available for almost twenty years. The first surgical robotic systems were designed as supportive systems for laparoscopic approaches in general surgery (the first procedure was a cholecystectomy in 1987). The da Vinci Robotic System is the most common system use...
The finite element model has been used as an effective tool in human spine biomechanics. Biomechanical finite element models have provided basic insights into the workings of the cervical spine system. Advancements in numerical methods during the last decade have enabled researchers to propose mor...
AIM: The term kyphosis is used to describe the spinal curve that results in an abnormally rounded back. Kyphosis may develop due to trauma, developmental anomalies, degenerative disc disease, inflammatory diseases, and infectious diseases and also iatrogenic. The aim of this paper is to review the...
It has been claimed that 85% of the neck injuries caused by car accidents are the result of rear-end collisions. This type of injury is called a whiplash injury, and its mechanisms are not completely understood due to the limited ability to diagnose them using X-ray or MRI. Biomechanical studies i...
The aim of this study was to a conduct a systematic review of carmustine wafers (Gliadel wafers) for the treatment of glioblastoma multiforme (GBM) to assess the survival benefit and safety of this therapy. The inclusion criteria were 1) prospective or retrospective clinical trial; 2) patients who...
Scoliosis refers to curves exceeding 10 degrees observed through posterioanterior direct radiography. In fact, the diagnosis for idiopathic scoliosis is accepted to exclude already available causes. The aim of this paper was to review the etiopathogenesis, classification systems and the treatment ...
AIM: The utilization of technology for purpose of imparting knowledge, especially in high-end branches like neurosurgery, has gained prominence in the contemporary academic scenario. The technological advancements have brought about outstanding transformation to education and patient care. The con...
AIM: Primary pineal melanoma is a rare tumor. We herein review the histogenesis, pathology, radiology and therapeutic options of this rare tumor. MATERIAL and METHODS: We conducted a PUBMED search using a combination of keywords such as “primary pineal melanoma”, “CNS melanoma...
The surgical treatment of spinal metastases is still controversial. Due to developments in diagnostic imaging there has been a great evolution in minimally invasive surgical techniques for the spinal surgery. Most of the patients with spinal metastases are debilitated and under high risk of major ...
Colloid cysts are usually located in third ventricle and are believed to be derived from either primitive neuroepithelium or endoderm. Patients may remain asymptomatic for long time while some can present with paroxysmal headache, gait disturbance, nausea, vomiting, behavioral changes, weaknesses ...
Postoperative spondylodiscitis is relatively uncommon. This complication is associated with increased cost, and long-term of inability to work, and even morbidity. Although the majority of postoperative spondylodiscitis cases can be well managed by conservative treatment, postoperative spondylodis...
Intracranial aneurysms and their treatment is one of the leading problems of neurosurgery that create high mortality and morbidity. The technique of safe clipping is as generally used depends on the temporary occlusion of the cerebral vasculature during surgery. However, there is no exact data abo...
Fluorescein sodium (FL)–guided resection has become an important and beneficial treatment method for malignant brain tumors. FL-guided resection improves the rate of gross total resection in high-grade gliomas (HGG) and cerebral metastases (CM). FL sensitively visualizes the disruption of th...
Trigeminocardiac reflex (TCR) is a reflexive response of bradycardia, hypotension and gastric hypermotility which is observed upon mechanical stimulation in the distribution of the trigeminal nerve. Previous articles have described TCR during intracranial operations, ophthalmic surgery, microcompr...
Hemodynamic changes during pregnancy may favor the formation and rupture of intracranial aneurysms. Despite this risk, guidelines for managing intracranial aneurysms during pregnancy have not been clearly defined. The objective of this review is to describe the treatment options for pregnant women...
Case Report
(898)Bi-thalamic stroke is rarely reported in the literature as a complication of an endonasal endoscopic procedure. It has been associated with presence of a Percheron artery variant, as well as with top of the basilar syndrome, both of which significantly increase patient surgical morbidity. Infundib...
Amyloidosis is a progressive disorder marked by the aggregation of insoluble fibrillar proteins in various tissues, leading to tissue damage. Localised amyloidosis, known as amyloidoma, is particularly rare in the central nervous system and may be mistaken for a neoplastic lesion due to similar ra...
Turcot syndrome (TS) is an extremely rare genetic disorder characterized by the concurrent occurrence of primary brain tumors and colorectal cancer. The prognosis for patients with TS is typically poor. A 57-year-old man with TS who developed recurrent glioblastoma and had a family history of colo...
Spinal meningiomas are common intradural spinal tumors. Recurrent multilevel ventral intradural extramedullary spinal meningiomas, especially those presenting several years post-initial surgery is rare and can be particularly challenging to treat. We report two cases of such recurrent multilevel v...
The formation of histologically mature bone within the intracranial compartment is an exceptionally rare phenomenon. Although intracranial calcifications are frequently encountered in clinical practice, true ossification culminating in the development of mature bone tissue remains poorly character...
Carotid blowout syndrome (CBS) refers to involvement of the carotid artery by malignant processes of the head and neck with compromise of vessel integrity and rupture. Carotid hemorrhage (CBS type III) is fatal, particularly when it occurs outside hospital settings. Bleeding can occur through the ...
Vagus nerve schwannoma is an infrequently occurring schwannoma, in which a distinct subtype exists wherein the tumor is confined to the cerebellomedullary cistern without invading the jugular foramen. This unique tumor is called purely intracranial vagal schwannoma. In this case report, we presen...
Neural tube defects (NTD), caused by a disturbance in the neurulation process, are easily diagnosed and treated in the early years of life. Although early repair of NTD is advocated, there is lacking information on its natural course. There are only 11 cases, including this one, reported in litera...
Erdheim-Chester Disease is a rare systemic xanthogranulomatous infiltrating disease, characterized by lipid-laden histiocytes accumulating in various organs and almost always in bones. Etiology of the disease is still unknown. It may involve various organs and systems, such as musculoskeletal, car...
Intraventricular hydatid cysts are extremely rare. Till date, these cysts have been believed to originate from the ventricle itself. Of the various intraventricular cysts, primary solitary cysts are the most common ones. These cysts are purely intraventricular or partly parenchymal with an intrave...
Trigeminal schwannomas are rare lesions centered on the trigeminal ganglion at Meckel?s cave. The complexity and morbidity of surgery for these lesions have allowed stereotactic radiosurgery (SRS) to emerge as a safe and viable option for treatment. Various other lesions at this location must aler...
Silent corticotroph pituitary neuroendocrine tumours (PitNETs) are rare, aggressive tumours that exhibit clinical and biochemical silence, despite their expression of adrenocorticotrophic hormone (ACTH) and the transcription factor Tpit. They exist on a spectrum of functionality between true silen...
In recent years, there have been multiple reports of delayed leukoencephalopathy (DL) occurring after endovascular treatment for cerebral vascular lesions, with polyvinylpyrrolidone (PVP) identified as a contributing factor. Herein, we present a case of DL developing after coil embolization for an...
We report the case of a 24-year-old woman who received immunosuppressive treatment for systemic lupus erythematosus. In her past medical history, she had been treated for disseminated toxoplasmosis (ocular and cardiac). Four months later, she was hospitalized and treated for a presentation suggest...
Non-neoplastic intracranial cysts (NICCs) are usually stable and typically do not cause symptoms throughout life. Among the various NICCs, rare spontaneous disappearances of arachnoid cysts, colloid cysts, and Rathke?s cleft cysts in various locations have been reported. To our knowledge, no repor...
Bilateral thalamic edema is commonly caused by vascular, toxic/metabolic, neoplastic, and infectious factors. However, dural arteriovenous fistulas (DAVFs) are a relatively rare and often overlooked cause, with an incidence rate of about 8%. Tentorial dural arteriovenous fistulas (TDAVFs) represen...
Traumatic spinal epidural hematoma (TSEH) is a rare condition that may cause acute spinal cord compression and lead to irreversible neurological impairment. TSEH not only compresses the cord, but it can also worsen cervical nerve root avulsion. To our knowledge, only five cases of combined TSEH an...
Intracranial aneurysms are rare in the pediatric population, while fusiform middle cerebral artery (MCA) aneurysms are more common. Although surgical clipping is the generally preferred treatment strategy for aneurysms, occasional recurrence may still occur after successful clipping. As expertise ...
Bone mass is maintained by a balance between bone formation by osteoblasts and resorption by osteoclasts. Calvarial thinning can occur because of various factors. However, no previous studies have described bilateral temporal thinning (BTT) of the skull. This report presents a case of a squamous p...
Penetrating brain injuries are usually the result of high-velocity accidents. However, intracranial foreign bodies can also rarely occur as a result of child abuse. Inserting a sewing needle into the brain through the sutures before the closure of fontanelles represents a particularly intriguing a...
Subthalamic nucleus deep brain stimulation (STN-DBS) is a safe and effective therapy for Parkinson´s disease (PD) in selected patients. However, various side effects such as paraesthesia, diplopia, ataxia, worsened akinesia, emotional changes, dysarthria, and muscle contractions can occur due to t...
Arteriovenous malformations (AVM) are abnormal arteriovenous shunt lesions that predominantly occur in the brain or spinal cord. However, obstructive hydrocephalus resulting from an unruptured AVM occurs rarely. Herein, we report the case of a patient with obstructive hydrocephalus caused by an un...
Blindness due to blood vessels being compressed by tumors around optical chiasma has rarely been reported in the literature. We hereby report a rare circumstance where visual impairment occurred in a patient diagnosed with tuberculum sellae meningioma caused by optic nerve compression from the ant...
Concomitant occurrence of severe extracranial large vessel stenosis and an ipsilateral intracranial aneurysm is often detected incidentally, but the optimal therapeutic strategy is not clear. Several reports have investigated whether simultaneous carotid artery stenting (CAS) and coil embolization...
Intradural spinal cord abscesses are rare infections in early childhood and usually result from pre-existing congenital anomalies of the spinal column. The formation of abscess may be the result of hematogenous spread. It is treated by surgical and parenteral antibiotic treatment, but some special...
Arachnoid cysts (ACs) are congenital malformations that may develop anywhere in the subarachnoid space along the cerebrospinal axis, but are mostly observed in the temporal fossa and Sylvian fissure, predominantly on the left side. ACs account for 1% of all intracranial space-occupying lesions. AC...
Rasmussen encephalitis (RE) is a rare and severe brain disorder that is associated with unilateral hemispheric atrophy and manifests as severe refractory epilepsy, hemiplegia, defects of motor and speech functions, and cognitive impairment. Treatment of RE, especially in adult patients, is extreme...
Endovascular treatment of bifurcation aneurysms is difficult and complicated because arterial branches may arise from the aneurysmal neck. We treat these cases with complex techniques such as Y or T stenting. In this report, we deployed one Neuroform EZ stent using the intentional herniation techn...
AIM: To present a case (3rd report in the literature, 1st case with sequestrated-extruded disc herniation) of thoracic disc herniation that was sequestrated only by ligamentous injury without thoracic osseous pathology. MATERIAL and METHODS: We reviewed the diagnosis and treatment of a 25-year-old...
Intracranial medulloepithelioma is an extremely rare and highly malignant fast-growing tumor that shows a propensity to spread widely throughout the central nervous system. It most commonly occurs in infants and young children. We report a rare case of 2-year-old female patient with a large mass l...
Simultaneous presence of the persistent primitive trigeminal artery and so-called intermediate communicating artery was discovered in a 77-year-old cadaver autopsied due to the myocardial infarction. Many vascular variants and abnormalities such as aplasia of the right vertebral artery (VA), prese...
Ventriculo-gallblader shunt is very rarely used in the treatment of hydrocephalus. A 44-year-old male with ventriculoatrial shunt dysfunction was evaluated. His ventriculoatrial shunt was not working. His medical history revealed that his hydrocephalus was treated five times by venrtriculoperitone...
The diagnostic spectrum for scalp lesions is extensive and comprises either benign or malignant features. Cornu cutaneum (CC) is a well-recognized condition; however, its origin and natural course are not always obvious. We present the case of a 78-year-old male patient who was diagnosed with intr...
Cavernous angiomas (cavernomas) are vascular malformations of the brain characterized by abnormal capillaries. Ventricular cavernomas are considered rare; however, an extremely unusual topography is the septum pellucidum, with only five reported cases in the English literature. These malformations...
Composite hemangioendothelioma (CHE) is a very rare, low-grade malignant vascular tumor. It is most commonly seen as one or more nodules on both sides of the fingers and toes. This tumor rarely settles in the paraspinal muscles. The age of onset is usually between 21 and 72 years, with an average ...
Intracranial chondromas are unusual benign tumors. They commonly occur at the base of the skull, whereas an intraventricular type is very rare. We present the case of a 19-year-old female patient with a giant intraventricular chondroma detected incidentally by imaging after a car accident. The sp...
Spinal intradural arachnoid cysts (SIACs) are cerebrospinal fluid (CSF) sacs formed by arachnoid membranes. They may be idiopathic or acquired. Treatment is resection, fenestration, or cyst drainage. A 41-year-old female patient presented with myelopathy symptoms and complaints. Magnetic resonance...
In this report, we present two cases of patients with cerebrospinal fluid (CSF) otorrhea who underwent surgical repair through either a transmastoid or middle cranial fossa approach. In our first case, a 34-year-old male after head trauma with conductive hearing loss and a House-Brackmann grade 2 ...
We present a case of invasive monitoring of a patient while he was being surgically treated in the status state. Our patient was a 27-year-old male who was hospitalized for frequent seizures, which began after a head trauma at the age of 3 years. Video electroencephalography was performed, and 25 ...
An aneurysmal bone cyst (ABC) is a vascular locally proliferative, non-neoplastic, benign lesion observed in children and young adults. 75% of ABCs occur before the age of twenty. The cyst frequently develops in the long bones and comprises 1.4% of primary bone tumors. Spinal ABC is rare and is ty...
An 82-year-old woman underwent a ventriculoperitoneal (VP) shunt placement to treat hydrocephalus secondary to a right thalamic intracerebral hemorrhage. Pneumothorax and subcutaneous emphysema was noted 2 hours later. No respiratory distress was noted. A chest computed tomography scan revealed th...
AIM: To investigate the clinical manifestations and radiologic characteristics in diagnosing and treating hemorrhagic cerebral paragonimiasis. MATERIAL and METHODS: The study retrospectively analyzed the data of three cases of hemorrhagic paragonimiasis who received treatment in the hospital from...
Cerebral amyloid angiopathy (CAA) is a common but often asymptomatic disease, characterized by the deposition of amyloid proteins within brain parenchyma and leptomeningeal-cortical vessels. It can occur as a sporadic disorder or accompany Alzheimer disease (AD). The usual presentation of CAA is s...
Spinal meningiomas are rare in the lumbosacral region. The best solution is complete tumor resection. However, how to preserve the patient?s rectum/bladder function after en bloc resection is still a considerable challenge, even without spinopelvic reconstruction. The use of the three-dimensional ...
Strongyloidiasis is an infestation caused by the intestinal nematode Strongyloides stercoralis. It is potentially fatal in immunocompromised hosts due to its capacity to cause an overwhelming hyperinfestation however infested healthy individuals are usually asymptomatic. Hyperinfestation is extrem...
In this report, we present a case of peripheral facial nerve palsy (FNP) due to injury of the facial nerve trunk that occurred during tunneling of a VP shunt catheter. We aimed to present the preventive measures by taking the anatomical causes of this complication. A 75-year old was stated a VP sh...
Extracranial carotid artery aneurysms are less commonly observed. Hence, determining the optimal treatment strategy is difficult because of limitations in the reporting of results and confounding by indications based on the available literature. Here, we present a hybrid operation combining surger...
AIM: To discuss the rare association of atlantoaxial instability in patients with the Dyggve-Melchior-Clausen syndrome, a rare autosomal recessive disease characterized by progressive spondyloepimetaphyseal dysplasia and mild to severe mental retardation. MATERIAL and METHODS: We report an uncommo...
AIM: To present one-step customized cranioplasty for intraosseous meningiomas. CASE DESCRIPTION: The authors report the case of a 54-year-old woman with a consequent frontal intraosseous meningioma invading the superior sagittal sinus. The patient only suffered from local pain and cosmetic damage....
An 11-year-old girl presented with bilateral traumatic caroticocavernous fistula associated with corkscrew eyelid vessels, which were considered indicators of severe congestive disease in this case. Coil embolization was performed; similar to other congestive findings such as proptosis, orbital br...
To present a young immunocompetent patient with a fourth ventricle tuberculoma without pulmonary tuberculosis. A previously healthy young male patient presented with a history of headache, nausea, and blurred vision. Neuroimaging revealed a mass present in the fourth ventricle. The lesion was succ...
The aim of this study is present a case of isolated injury to the branch of posterior interosseous nerve. A 27-year-old gentleman was presented with an inability to extend the ulnar three fingers of his left hand after sustaining closed fractures of the left ulna and radius after a motorbicycle ac...
Microvascular decompression (MVD) is a common surgical technique used for treatment of trigeminal neuralgia (TN) caused by direct vascular compression of the nerve at the brainstem entry zone (BEZ). Here we report a case of a patient (status postcraniotomy for microsurgical clip obliteration of a ...
In this report, we present the case of a 21-year-old female with midbrain tremor involving atypical features, treated using a pedinculopontine nucleus lesion. Different targets for the treatment of midbrain tremor using radiofrequency lesion have been reported. In this case, stimulation of the tha...
This article presents the case of a 32-year-old female patient with schwannoma. The patient had swelling on the anterior aspect of her right foot for 1 year with increasing pain over the past 2 months. Moreover, a positive Tinel sign was present over the swelling. Magnetic resonance imaging reveal...
Mitochondrial encephalomyopathy, lactic acidosis, and recurrent stroke-like episodes (MELAS) syndrome is a rare but one of the most common maternally inherited multisystem disorder. Although patients with MELAS present a variable clinical profile, strokelike lesions have been detected in 90% of ca...
AIM: To discuss the use of flow modulation in treating ruptured aneurysms of the proximal segment of the anterior cerebral artery (A1 aneurysms). A1 aneurysms are rare, constituting approximately 1% of all intracranial aneurysms. CASE REPORT: We report a left A1 aneurysm with a wide neck and small...
Intermediate-grade meningeal melanocytoma (IGM) is a rare tumor that has not been reported in children so far. It is speculated to have more aggressive clinical behavior with undefined best management options. In this study, we present a 19-month-old girl as the first case with IGM in English lite...
Painful atlantoaxial (C1-2) osteoarthritis (AAOA) has been described over 40 years ago. The condition may cause severe pain symptoms and disability related to the unilateral suboccipital pain and, in some cases, occipital neuralgia. One of the greatest challenges with AAOA is making the diagnosis....
Subdural hematomas constitute rare causes of secondary Parkinsonism in elderly. Subacute or chronic subdural hematomas occur in the elderly following minor head trauma or even without a remarkable history of trauma. A 69-year-old woman admitted with a rapidly progressive acute-onset hemiparkinsoni...
To date, there has been no effective treatment to prevent brain damage in premature infants or to prevent the development of post-hemorrhagic hydrocephalus (PHH) after severe intraventricular hemorrhage (IVH). Therefore, new, safe and effective treatment methods need to be developed to improve the...
AIM: To report the first case of an isolated lumbar grade II atypical choroid plexus papilloma (CPP). CASE REPORT: A 42-year-old man was admitted to the hospital because of back and leg pain. No urinary or rectal dysfunction was detected. Lumbar magnetic resonance imaging (MRI) showed a well-circu...
AIM: Deep brain stimulation (DBS) is a well-established treatment option for improving function and quality of life (QoL) in carefully selected patients with Parkinson?s disease (PD). Patient selection is a crucial step that should be performed by an experienced multidisciplinary team according to...
Posterior communicating artery (PComA) aneurysms are common cerebral aneurysms. In cases of PComA aneurysms accompanied by anatomical variations of PComA, such as hypoplasia, hyperplasia, or infundibular dilatation, it is challenging to completely determine the relationship between the parent arte...
Central and peripheral nervous system involvement of COVID-19 has been reported in 25% of cases. COVID-19 is associated with encephalitis and most often presenting with confusion and disorientation, and mortality decreases with early diagnosis and treatment.The patient who was admitted with confus...
Patients with aneurysmal subarachnoid hemorrhage (SAH) continue to have poor functional outcome due to the occurrence of delayed cerebral ischemia (DCI). Although vasospasm represents the primary therapeutic target for mitigating DCI, DCI occurs through multifocal etiologies that involve impaired ...
Although arteriovenous fistulas (AVFs) at the craniocervical junction (CCJAVFs) are rare, they often develop into a subarachnoid haemorrhage when they have an ascending venous drainage, or cause venous congestion of the spinal cord with descending venous drainage. Isolated brainstem lesions due to...
AIM: To describe a rare case of spondyloptosis caused by spinal tuberculosis in the upper thoracic region. CASE PRESENTATION: A 22-year-old female patient suddenly fell down because of lower extremity weakness. Spondyloptosis was observed, which developed following melting of the spine caused by t...
Spinal epidural hematoma (SEH) is exceedingly rare, especially in children. Acute cervical epidural hematoma presents suddenly, with progressive neurologic deficits. However, it is difficult to diagnose in infants, which results in delayed diagnosis. We report a case of rapid diagnosis of traumati...
Spinal intramedullary capillary hemangioma is a rare condition. Although most spinal/spinal cord hemangiomas are inborn in origin, perinatal presentation is uncommon. We present a neonate with an intramedullary hemangioma, born with communicating hydrocephalus and complete paraplegia. Spinal imag...
AIM: To present the clipping of a ruptured aneurysm in the M1 segment of the right middle cerebral artery after rebleeding, which was treated with Woven EndoBridge (WEB). CASE REPORT: A 68-year-old male patient with known hypertension, coronary artery disease and benign prostatic hypertrophy was ...
Oblique lateral interbody fusion (OLIF) has recently gained widespread use as a minimally invasive surgical procedure for degenerative lumbar disease. OLIF has several advantages but can also lead to several possible complications. For example, although less common, access through the retroperiton...
Vagal paragangliomas (VPs) are rare tumors arising from paraganglionic tissue within the vagal nerve?s perineurium. Usually, benign vascular tumors, VPs tend to invade the surrounding structures. Herein, we report the case of a VP presenting as a neck mass, which was evaluated as a glomus caroticu...
The paramedian forehead flap (PMFF) has been well described for nasal reconstruction. However, it has never been reported for use in the repair of high flow anterior skull base cerebrospinal fluid (CSF) leaks. The patient was a 55 year-old African American male cocaine abuser who initially presente...
The coexistence of intracranial aneurysms and a meningioma is not a clinically common phenomenon. Here we present the case of a meningioma of the left anterior clinoid process concurrent with a right clinoid aneurysm and a ruptured aneurysm of the left posterior communicating artery (PcomA). Immed...
This study aimed to describe a novel endovascular strategy to help control blood flow used successfully to treat an infant with highflow pial arteriovenous fistula (AVF). Here, a single-hole high-flow nongalenic pial AVF was diagnosed in a 2.5 year-old infant is presented. After coil packing failu...
Parsonage-Turner Syndrome, or neuralgic amyotrophy, is an acute-onset upper limb and shoulder girdle palsy that can occur in a post-viral, post-surgical or idiopathic setting. There have also been some reported cases of the syndrome occurring following vaccinations. The pathophysiology of neuralgic ...
Autonomic symptoms have been long noticed coming along with pain in the head, e.g. Trigeminal Neuralgia, trigeminal autonomic cephalalgias. The symptoms show up during pain attacks, so they are assumed to be activated by the nociceptive afferents of the trigeminal nerve. Here, we present a case wi...
The azygos anterior cerebral artery (ACA) is a rare anatomical anomaly. Clipping surgery has been conducted in approximately 30 reported cases because it is frequently associated with aneurysms. However, few cases in which coil embolization was performed have been reported. We report three cases o...
Subarachnoid hemorrhage due to the A1 segment of an anterior cerebral artery dissecting aneurysm is rare. Therefore, a standard treatment has not been established. Though several case reports of direct surgery exist, there are few reports on endovascular treatment. This is the first study to descr...
Taste consists of sensation and perception. Specific neural structures transmit a stimulus from the taste buds to the gustatory cortex to generate taste sensation. Any disruption of this pathway, whether it affects sensation or perception, can result in taste disorders. Stereotactic procedures inv...
We present a 61-year-old man with a 3-month history of headache, hemiparesia and speech disturbance. Computerized tomography (CT) of the brain showed well defined, diffusely contrast enhanced and frontoparietally located solid mass. Histopatologic diagnosis of the tumour was hemangioblastoma. In ...
While primary cholesteatoma is rare, its presentation with only double vision merits extra attention. Apatient with primary cholesteatoma of the petrous apex where the only symptom was double vision is presented. Due to extreme medial localization there was absence of the common symptoms of heari...
Metastatic tumours in the choroid plexus are generally considered to be very rare. We report a case of bladder carcinoma metastasizing to the choroid plexus of the trigone of the lateral ventricle. This tumour was shown by computed tomography and magnetic resonance imaging of the brain, followed ...
An extremely rare case of a calcified cerebral hydatid cyst is presented. The cyst was treated surgically at our department. The only symptom was generalized seizure. The calcified, non-enhancing and well-circumscribed characteristics of the lesion were detected on computed tomography (CT). The p...
It is important to distinguish tumor recurrence from radionecrosis because subsequent therapy and prognosis are guided by the cause of progression. Necrosis is an important histological feature of glial tumors. Tumor necrosis is due to an insufficient blood supply and is ischemic in nature. Diffe...
Spontaneous spinal epidural hematoma is a rare emergency. The exact etiology is unknown. A 60-year-old woman arrived at the emergency department with back pain, followed 20 minutes later by acute paralysis of both legs. The initial magnetic resonance image (MRI) showed a spinal epidural hematoma ...
Ossification of the thoracic ligamentum flavum is a rare condition and reports of this pathology have been limited mostly to oriental patients. Uppermost lesions are rare. A 39-year-old Turkish male presented with spastic paraparesis. He was a piano carrier. Radiological examinations revealed ex...
The indications for surgery and the optimal surgical strategy for intradural spinal lipomas are still being debated. The article presents two cases of intradural spinal lipoma that were treated with subtotal resection and decompression. The patients were two adults, one with a thoracic intradural...
To report of a case of lumbar spondylodiscitis caused by Morganella morganii and to discuss surgical treatment of spondylodiscitis by an extended posterior paramedian approach and posterior instrumentation. Instrumentation was performed by an extended posterior paramedian approach for our patient...
Temporal lobe meningoencephalocele in the lateral sphenoid sinus is an uncommon, and potentially dangerous, pathological condition. Adult patients with meningoencephalocele in the sphenoid sinus often present with spontaneous cerebrospinal fluid rhinorrhea and should be considered for transsphen...
Intracranial schwannomas most frequently arise from the vestibular portion of the VIIIth cranial nerve. Schwannomas arising from other cranial nerves are rare. Subfrontal schwannoma is extremely rare. We report a case of a subfrontal schwannoma and review the related literature.
Sacral chordomas are known as slow-growing, locally aggressive tumors. The management strategy and surgical treatment options are well discussed in literature. However, few reports mention the complications of sacral chordoma. We present a case with an unexpected large sacral chordoma developing ...
Chryseobacterium meningosepticum is a gram-negative bacillus that is known to cause meningitis in premature neonates, and a variety of infections in immunocompromised adults. Reports have also identified this agent as a cause of postoperative meningitis in immunocompetent adults. We present the c...
Extratemporal epilepsies are difficult to detect and to localize electrographically. The surgical success rate in extratemporal lobe epilepsy (ExTLE) has been low but might be increased by using invasive electrodes and functional mapping. We describe the preoperative evaluation and surgical appro...
Meningiomas rarely occur in the pineal region. Total removal should be performed because of their benign characteristics. Meningiomas can reach huge diameters in the pineal region. Classical pineal approaches may be insufficient during the total removal of giant or large pineal meningiomas. In t...
A patient with ependymoma of filum terminale which was initially diagnosed as a lumbar disc herniation is presented. Compression of spinal nerve roots by an intradural mass due to ependymoma of filum terminale is a rare condition and should be kept in mind in the differential diagnosis of lumbar ...
The Guillain-Barre Syndrome (GBS) is an acute demyelinating polyneuropathy characterized by progressive muscle weakness and areflexia. Although its pathogenesis remains unknown, it is thought to be an autoimmune disease. Guillain-Barre syndrome following anesthesia or surgery is rare. In this cas...
We present a 29-year-old woman with a giant cell tumor of the temporal bone. The differential diagnosis is discussed with reference to the literature regarding giant cell lesions, especially of the cranium.
Spinal cord compression due to follicular thyroid carcinoma is rare. We report an unusual case of isolated vertebrae metastasis of follicular thyroid carcinoma presenting with spinal cord compression. It is unusual for this neoplasm to initially present as a single metastasis to the spine. Compre...
Glioblastome multiforme (GBM) is a malignant tumor of the brain which may develop primarily or secondary to radiotherapy. The occurence of GBM following radiotherapy for medulloblastoma is a very rare condition and few cases have been reported. A 10-year-old girl who had been treated by surgery ...
Patients with Klippel-Feil syndrome (KFS) and associated craniocervical junction abnormalities are at high risk for the development of progressive neurologic deficits. A 60-year-old male patient with Klippel-Feil syndrome was admitted to the emergency room with an 8-year history of a progressive ...
A 40-year-old male had been operated five years ago due to a right frontal diffuse infiltrative astrocytoma grade II and the tumor had been removed grossly. There was no other lesion in the posterior fossa at that time and the patient received radiotherapy and chemotherapy. Five years later, the ...
Scaphocephaly is the most common type of craniosynostosis. Simple sagittal suturectomy is still the operation of choice for infants under the age of 6 months. We describe a 4-month-old boy who underwent calvarial remodeling for the treatment of scaphocephaly. The patient was operated on in the pr...
Lumbar intervertebral disc herniations can regress spontaneously at different levels and times in a patient even in the presence of a neurological deficit. A patient with spontaneous regressions of two herniated lumbar discs at different levels and time periods, which regressed after conservative...
OBJECTIVE: The presence of cartilage and bone in a glial tumor is most unusual. Several mechanisms have been proposed to explain this condition. In some cases, there is a fibrous capsule between tumor tissue and the cartilaginous area together with glial fibrillary acidic protein negativity in c...
Lumbar disc disease may be confused with the other pathologies that generate sciatic pain. One of these pathologies is an abnormal dilated epidural venous plexus that mimics herniated lumbar disc disease. The purpose of this report is to describe this situation. Between 2002 and 2004, three of ou...
OBJECTIVE: Perseveration is a rarely observed symptom during the course of neurosurgical diseases. As all perseverations are not uniform, determination of the corresponding brain regions is of great importance prior to deciding whether it represents a destructive or an irritative process. CLINIC...
Although choroid plexus carcinoma is a rare and malignant intraventricular neoplasm that is usually seen in the pediatric age group, it may also present in older individuals. Radiotherapy following radical surgery is the main treatment strategy. A 54-year-old male patient with choroid plexus car...
Extra-axial cavernous sinus hemangiomas are rare and represent 3% of all benign cavernous sinus tumors. Total removal of cavernous sinus hemangiomas is difficult due to the risk of severe intraoperative bleeding and the complicated neurovascular structures of the cavernous sinus. These lesions ha...
Lumbar spinal extradural arachnoid cysts are rare, expanding lesions and they commonly occur in the thoracic spine and lie posterolaterally. Their pathogenesis is still unclear and it is claimed that arachnoid cysts are the result of a widening of the septum posticum. The mechanism of cyst enlarg...
Brain metastasis is an uncommon and morbid complication of thyroid carcinoma, especially follicular carcinoma. Because of its rarity, management is still debated. A 64-year-old woman presented with signs of blindness. After ophthalmological and radiological evaluations, A frontobasal mass lesion...
INTRODUCTION: Meningiomas originate from meningothelial cells. Meningioma is a common neoplasm in the CNS, representing about 15-20 percent of all primary intracranial tumors. Although malignant forms may spread via blood, lymphatic drainage and cerebrospinal fluid to distant sites, metastasis f...
Pleomorphic adenoma is the most common epithelial tumors of the human lacrimal gland, comprising about 50% of all the tumors. Although malignant transformation is not frequent, intraoperative tumor spill or inadequate resection may be associated with an increase in the recurrence rate of pleomor...
Primary central nervous system lymphomas are rare tumors that account for less than 2% of primary intracerebral neoplasms. A 70-year-old male who had been operated for prostatic adenocarcinoma ten months ago was admitted with the complaint of amnesia, confusion, stupor and difficulty in walking. ...
Acute subdural hematoma (ASDH) is a neurosurgical emergency. Spontaneous resolution of acute subdural hematoma is extremely rare and the mechanisms are still unclear. However, several mechanisms of spontaneous resolution of acute subdural hematoma have been reported. We have witnessed a patient ...
Several congenital anomalies of the odontoid process have been described in the literature. Malformations of the dens include aplasia, hypoplasia, duplication, condylicus tertius, os terminale (os avis) and os odontoideum. Os odontoideum is the most common anomaly of the odontoid. However, there ...
The presentation, diagnosis, and treatment are described for a patient with an ependymoma involving the left cerebellopontine angle (PCA). A 34-year-old woman had left facial paralysis, hearing loss and headache in 8 months. Computerized tomography (CT) revealed a mass lesion of the left PCA whic...
A 70-year-old male was operated for bilateral parasagittal meningioma. He suffered bilateral venous infarcts postoperatively. The craniotomy flap was removed and a duraplasty procedure was performed. One month later, the patient deteriorated with sinking of his skin flap. Holding the patient int...
The spinal accessory nerve (SAN) is responsible for the main motor innervation to the trapezius muscle. It is susceptible to iatrogenic injury as its course is superficial and close to the posterior lymph node chain and the posterior cervical triangle is covered only by skin and the investing fas...
Although primary intradural-extramedullary ependymomas arising from the cauda equina or filum terminale are not rare, spinal ependymoma as a possible cause of chronic spinal subdural hematoma (CSSDH) following lumbar puncture has not been reported in the literature previously. A patient with pro...
INTRODUCTION: Brachial plexus root avulsion injuries cannot be repaired by neurorrhaphy or nerve grafting. There is no possibility of spontaneous recovery and these injuries occur most often in individuals who are in their productive period. At present, the best surgical treatment option for brac...
Lhermitte-Duclos disease is a rare hamartomatous lesion of the cerebellar cortex that may occur in the setting of Cowden's syndrome, an autosomal dominant condition characterised by multiple hamartomas and neoplastic lesions in skin and internal organs. We add a further case to this rare entity. ...
A case with giant cavernous hemangioma in the cavernous sinus is reported. The patient had a 5-month history of headache and visual symptoms. Computerized tomography (CT) and magnetic resonance imaging (MRI) studies demonstrated a lesion of the cavernous sinus in the left middle fossa. Only a bi...
Lumbosacral plexus lesions are rare as it is protected by the deep muscle layers in the retroperitoneal area and the wall of the pelvis. The lesions appear due to iatrogenic reasons after operations on the neighboring kidneys and internal genital organs. The lower extremities of cases that have u...
Fat storage in a meningioma occurs via two distinct processes: metaplastic change of meningotheliomatous cells into mature adipocytes, or microcystic change and lipidisation of meningioma cells. We report a case of a true metaplastic “lipomatous” meningioma. Differentiation of two dis...
Bilateral facet dislocations at subaxial levels in a flexion-distraction type trauma are three-column injuries. Early reduction of the locked facets and decompression is critical in preventing progressive secondary spinal cord injury. We present a case of traumatic bilateral facet dislocations tr...
Larsen syndrome is characterized by flat face with hypertelorism, multiple and bilateral congenital dislocations and juxta-calcaneal accessory bone or bifid calcaneus due to a generalized mesenchymal defect involving connective tissue. This rare syndrome sometimes causes severe cervical spinal ky...
We report a case of multilevel thoracic spinal epidural abscess without any evidence of predisposing factors. Methicillin-susceptible Staphylococcus aureus was identified as the causal pathogen. Infection was managed with surgical debridement and a prolonged course of antibiotic therapy.
Paranasal sinus osteomas, especially those located in the sphenoid sinus, are rare lesions. They are usually solitary, benign and asymptomatic lesions and detected incidentally. We report a case of sphenoid sinus osteoma that was detected during investigations for otitis media. The patient was op...
Arachnoid cysts are constitutional anomalies with an asymptomatic course. There is no consensus on their etiology. They may lead to increased intracranial pressure accompanied by acute or subacute hemorrhage fenestrating into subdural space in young adults. A case of arachnoid cyst that experienc...
Foot drop has been known to occur in peripheral and spinal lesions and in muscular dystrophy as well as with central lesions. Insufficient neurological examination may result in an unnecessary investigation and delayed diagnosis. In this case report, the foot drop due to parasagittal meningioma w...
Development of an arachnoid cyst after ventriculo-peritoneal shunting is extremely rare. The authors present an unusual cause of arachnoid cyst formation following surgery performed for cystic dilatation of the 4th ventricle. Cyst to peritoneal shunting was performed and the patient developed a ...
Aneurysmal subarachnoid haemorrhage (SAH) during pregnancy is rare but serious obstetric complication and may be confused with eclampsia. SAH occurs more often in primiparae and in the third trimester of pregnancy. The hemodynamic and endocrine changes play an important role in the growth and ru...
OBJECTIVE: Giant spinal schwannomas are rare tumors. Complete excision is recommended for these tumors because inadequate removal has a high risk of recurrence, which requires more definitive, difficult, and dangerous surgery. However, complete removal poses difficulties and combined multistage ...
OBJECTIVE: Various operation techniques have been performed for treatment of lumbosacral spondyloptosis. However, there is not a standard treatment strategy because the disease is rare and the reported cases are in small series of other high-grade spondylolistheses. METHOD: A28-year-old lady wit...
Cerebellar liponeurocytoma is a rare cerebellar tumor, with only about 20 cases reported under many different names. Although the few cases described in the literature support the relatively benign nature of this lesion, the optimum treatment strategy and long-term behavior still have to be defin...
We report a rare complication of spinal instrumentation in a paraplegic patient who underwent insertion of a Hartshill rectangle system using Luque sublaminar wires for a fracture dislocation of his tenth thoracic vertebra after being involved in road traffic accident in 1997. The patient present...
Although intracranial meningiomas are usually solid and firm tumours, some are associated with diagnostically confusing cysts. In this article, we present our experience from three of our patients with cystic meningiomas and discuss the characteristics of these lesions. We detected type two cysts...
An 11-year-old boy with a large pineal region mass was admitted to our clinic. The preliminary diagnosis was teratoma. Tumor resection was carried out via combined occipital, transtentorial, supracerebellar, transsinus approach. The tumor tissue was completely resected, and no operative complicat...
Although hemangioblastomas may be seen in various locations of the central nervous system (CNS), intradural-extramedullary spinal hemangioblastomas are extremely rare. Hemangioblastomas are histologically benign lesions. They may cause important neurological deficits and may bleed during the oper...
OBJECTIVE: The English literature describes no pediatric cases of reduction of high-grade spondylolisthesis using the transvertebral surgical approach. We report a case of a high-grade spondylolisthesis in a child and provide a review. The aim of this study was to determine the efficacy of a spec...
CT guided percutaneous cordotomy relies on understanding anatomic and physiological cues in order to be performed safely and effectively. While the CT scan provides excellent anatomic targeting information, it does not supplant the vital confirmation that stimulation provides during this procedur...
Neoplastic lumbosacral plexopathy is one of the most disabling complications in subjects with cancer. Its clinical presentation is characterized by pain, muscle weakness and sensory complaints in one or both limbs.There are only a few cases in the neurosurgical literature as it is mostly treated ...
Spinal epidural abscess is a rare complication of epidural catheterization with an estimated incidence of 0.2 to 2.8 cases per 10,000 per year, with the peak incidence occurring in patients in their 60's and 70's. Delay in diagnosis or treatment may have devastating consequences, resulting in sev...
Chronic epidural hematoma is rare and not a well-known clinical entity. We present a 10-year-old male who complained of headache, nausea and diplopia due to supra- and infratentorial chronic epidural hematoma. He was operated with two burr holes located supra- and infratentorially. The hematoma w...
Primary non-neoplastic aqueduetal stenosis associated with van Recklinghausen 's diease (neurofibromatosis) is a rare entity, aetiology of which is still unknown. About 19 similar cases have been reported in the literature, We report two additional cases presenting with this rare association. Our tw...
Familial astrocytoma occurring in two siblings at similar sites is presented. Documentation of such cases is important for determining their incidence and exploring possible genetic factors.
The author reports a case of upward migration of an entire one-piece shunt into the ventricle. The probable mechanisms are discussed. Suggestions are made for how to avoid the occurrence of such a rare complication.
A case of subarachnoid ependymal (epithelial) cyst is described. It was located in the frontoparietal lobe of the brain, was lined with cuboidal epithelial cells, and had no communication with the ventricular system. The only clinical sign was epilepsy. Diagnosis was demonstrated by computerized tom...
Cerebellar medulloblastomas are the commonest malign tumors of the posterior fossa in childhood and they frequently metastasize. Tumor metastasis can be seen along the neural axis, lymph nodes, soft tissues, bones and distant organs. Spinal cord metastases are usually located in the extramedullary r...
A case of saccular aneurysm of the azygos anterior cerebral artery is reported. Aneurysms of the azygos anterior cerebral artery are extremely rare. Clinical, radiological and operative findings are described in detail and the pertinent literature is reviewed.
A case of solitary chondroma with a dural attachment is presented. The unusal fronto-parietal localisation, the computerized tomographic images and histological findings of this rare tumour are discussed. No recurrence is expected after total removal.
The term meningeal cardnomatosis refers to diffuse metastasis of the leptomeninges by systemic cancer. The diagnosis is suggested by signs and symptoms of headache, dementia, meningeal irritation and involvement of multiple cranial or spinal nerve roots. Blindness as an initial manifestation of meni...
A 12-year-old who had a ventriculoatrial shunt for hydrocephalus due to congenital aqueduct stenosis and later developed shunt nephritis is reported. His renal function detoriated progressively within eight months while he was lost to follow-up. After removing the shunt, and with appropriate aggress...
Dysplastic gangliocytoma of the cerebellum (Lhermitte-Duclos disease) is a rare disorder characterized by a slowly enlarging mass lesion in the cerebellum. In this paper, our experience with a case of Lhermitte-Dudos disease with an unusual vermian localization is reported and our findings are discu...
A patient with an orbital varix manifesting with proptosis, ophthalmoplegia and partial ptosis is presented. The lesion was unsuspected during computerized topographic examination and verified as a venous varix on pathological examination. Detail clinical manifestation and treatment are discussed.
A pro-atlantal intersegmental artery between the vertebral and occipital arteries in a patient is described. The intersegmental artery was treated by acrylic coating.
A patient with communicated hydrocephalus who was treated by ventriculo - peritoneal shunting eight months ago was admitted to hospital because of a rare complication of this procedure, namely hydrocele. We report the case and review the literature.
A case of benign paroxymal positional vertigo as a complication of prolonged bedrest is reported. The cause of this rare type of vertigo was considered to be postoperative bedrest which might have facilitated the deposition of precipitate on the cupula of the posterior semicircular canal. Physical t...
Acute spontaneous subdural haematoma of arterial origin is very are. We report such a case who presented with sudden severe headache and vomiting rapidly becoming comatose. The patient was hypertensive but had no history of head trauma. and the source of bleeding was identified as a cortical artery ...
Although the localization of sacular aneurysm, which are the most frequent cause of subarachnoid haemorrhage, is determined exactly with cerebral angiography, the false negative angiography rate varies from 10 to 25 %. Thrombosis. vasospasm and a number of other factors have an effect on false negat...
A 59-year-old man presented with a one-year history of progressive dysphagia to the point that he could no longer swallow solid foods. Cervical spine X-Ray films demonstrated massive anterior new bone formation along the anterior surface of C3 to C7 vertebrae. Evaluation with barium swallow and cerv...
Migration of a peritoneal catheter of the shunt system into the scrotum was encountered in a seven-month-old who had received a V-P shunt. This was considered a rare complication of a V-P shunt and the causal mechanism of this kind of complication is discussed with a review of the literature.
Multiple spinal cord meningiomas are extremely rare and we describe a case in which there was an extradural meningioma in the cervical region and an intradural meningioma in the lumbar region. The tumor was pathologically identified as meningothelial meningioma in the cervical region but in the lumb...
A case with lumbosacral and cervical multiple root cysts that involved all roots except the thoracic region is presented and myelogram findings are discussed.
Medulloblastoma is a neuroectodermal tumor. It spreads particulary to the spinal cord. Supratentorial metastasis of medullablastoma is a rare form that generally occurs in subfrontal area and may be due to the low dosage of irradiation of this region.
We report the case of a 37-year-old female patient harboring a right tentorial meningioma with bicompartmental growth who deteriorated while awaiting elective surgery. Both radiological and operative findings demonstrated intra tumoral and intracerebellar hemorrhage. The tumor was removed totally in...
Posterior epidural migration of sequestrated disc is fairly rare. Since clinical and radiological findings are not typical, the diagnosis of these cases has some importance. In our opinion the best diagnostic method is postmyelographic CT.
Epidermoid cysts are benign and congenital lesions. They commonly occur in the cranial cavity especially at the base of the brain and in the spinal canal. Intradiploic epidermoid cyst of the calvarium is very rare. We report an intradiploic epidermoid cyst of the temporal bone.
Primary intracerebral neuroblastoma is an uncommon neoplasm. It is difficult to make a differential diagnosis from other intracranial neoplasm preoperatively or histologicaly because of its undifferentiated cellular features. In this report a case of primary intracranial neuroblastoma in the neonat...
Intradural spinal teratomas are rare. We report a case in a 23-year-old man in whom Magnetic Resonance Imaging (MRI) revealed an intradural extramedullary tumour between the fourth and fifth cervical levels with a dermal sinus tractus. Histological examination showed a variety of tissues, including ...
Arachnoid cysts of the suprasellar region are quite rare. Precodous puberty may be one of the associated clinical findings of these lesions. In this paper, we present a case of suprasellar arachnoid cyst presenting with precodous puberty which was treated using by combined subfrontal and transcallo...
One patient with biventricular hydrocephalus secondary to obstruction of both foramen of Monro diagnosed by computed tomography is reported. The patient was treated by two ventricular catheters using a "T" connector. Recognition of this entity is important from both the therapeutic and prognostic st...
In this report an unusual case of intrasacral perineural cyst assodated syringomyelia diagnosed with metrizamide myelography and spinal computed tomography is presented and the pathogenesis is discussed.
Lymphangiomas are benign. congenital lesions that develop from sequestered lymphatic sacs. They usually occur in the neck and axilla. In this paper, we report a case of lymphangioma of the scalp on extremely rare location
Reported are the CT, clinical and histological features of a case of rapid growing esthesioneuroblastoma with intracranial extension. This tumour is most frequently reported to grow slowly inside the nasal cavities and can extend to the paranasal sinuses. The case investigated here occurred initiall...
A case is presented in which the peritoneal end of a catheter extruded spontaneously through the rectum.
A 14 year old patient admitted to the neurosurgical clinic as subarachnoid haelorrhage (SAH) is discussed. After diognostic procedures which included the cerebral digital substraction angiography (DSA) and myelography, it was seen that the cause of the SAN was a mass lesion at thoracal (Th) 12level....
A case of supratentorial suboccipital subdural haematoma (SSSH) is presented and discussed. This form of subdural haemotoma is very rare and only a few cases have been reported previously in the literature. This is an acute case of SSSH without any signs of neuropathology. On computerized tomography...
Three cases of purely intracanalicular acoustic neuromas not causing bony erosion and/or enlargement of the internal acoustic canal walls diagnosed accurately by temporal bone CT examinations are presented. lt is suggested that temporal bone CT scans done with the appropriate technique is a sufficie...
Hydranencephaly is a rare anomaly of the central nervous system (CNS) which characterised by absence of the cerebral hemispheres. The etiologic hypotheses are numerous and the causal injuries have been thought to be vascular occlusion, viral encephalitis and genetic abnormalities. In this report we ...
Klippel - Trenaunay syndrome is a congenital angiodysplasia characterized by varicose veins, cutaeous haemangiomas and bony and soft tissue hypertrophy. This report describes a case of Klippel- Trenaunay Syndrome with dilated tortuous vessels in the retina and left occipital infaret .
The human tail has long been an object of curiosity. Sporadic cases have been reported. We present a case of a tail like structure in an adult associated with an intradural dermoid tumour at Ll-L2. The dermoid tumour attached to the dorsal surface of the conus medullaris and cauda equina was exased ...
Intramedulary Localisation of schwannomas are rare. Only 36 cases have been reported up to 1991. In this report, sn additional case of intramedullary schwannoma treated surgically is presented.
A case of multiple intracerebral cavernous angioma with brain stem and cerebellar lesions is presented with a six-year follow-up. Cerebral cavernous angiomas are rarely multiple and it is unusual to find in the brain stem and cerebellum. Lesions were demonstrated with computed tomography (CT) and ma...
This is a case of tension pneumocephalus with additional subarachnoid haemorrhage, occurring after chronic subdural haematoma. possible mechanisms as causative agents discussed.
Total absence of speech is not generally recognized as a possible complication of posterior fossa surgery. Only a few reports of cerebellar mutism have been published so far. In this paper, we present the case of a patient with a brain stem tumour. who developed mutism without any additional neurolo...
Two cases of vertebral arteriovenous fistula (VAF) one caused by an angiographic catheter during coronary angiography and other due to a gunshot wound are presented. Preoperative and postoperative angiographic verification of the lesions was demonstrated. Both patients were treated by direct surgica...
The case of a 33-year-old man with a hemangioma involving the frontal sinus is reported. The patient presented with a gradually increasing hard lump over the forehead and frontal headaches. Characteristic changes on plain X-ray and computed tomography supported this diagnosis. The lesion was removed...
Benign solitary schwannomas arise often from cranial nerves, but they may be located at any part of the body, especially in the face and neck region. A 17-year old woman was accepted in our clinic for an extracranially growing tumour at the occipito-cervical region. She had been operated twice in an...
A case of migration of a Pudenz type peritoneal shunt catheter into the abdominal wall diagnosed with computed tomography is presented. This is a rare complication of ventriculoperitoneal shunt. It seems that a foreign body in the abdominal cavity and infection are the most important causal factors.
The properties of tumours of the jugular foramen are presented and the details of the infratemporal A approach, a new technique for neurosurgeons are discussed.
A case of mucocele of the sphenoid sinus that presented with sellar and parasellar extension is reported. This rare entity should be considered in the differential diagnosis of lesions causing destruction of the sellar floor even if there is lack of historical or radiographic evidence of primary par...
The case of a 63-year-old man who presented with Brown-Sequard syndrome plus posterior column deficits due to extensive ossification of the posterior longitudinal ligament is reported. Diagnostic evaluation included magnetic resonance imaging in addition to conventional techniques. The patient was s...
Chordomas are rare tumorus arising from notochord remnants. Most cases are encountered in adult life, but rare cases have been reported in childhood. In this report. a six-year-old boy with a chordoma in the craniovertebral junction presenting with isolated hypoglossal nerve palsy is reported.
A 10 year-old child presenting with subarachnoid haemorrhage secondary to the rupture of an anterior communicating artery aneurysm and concomitant coarctation of the aorta followed up by periodic transcranial doppler is reported and literature on the subject is briefly reviewed.
Intracranial meningiomas rarely present extracranial manifestations. As new and more precise radiodiagnostic tools are designed. early diagnosed make such cases are extremely rare. We present a case with a large extracranial extension meningioma and typical radiological findings.
A patient harboring a distal posterior cerebral artery aneurysm is presented. The aneurysm located on the right calcarine artery was totally excised. So far only two cases with such a distal aneurysm of PCA have been published. This very rare anatomic site for an aneurysm and the related literature ...
Encapsulated intracerebral haematoma (EICH) is an interesting and rare entity. In this paper: a chronic encapsulated intracerebral haematoma without vascular malformation is reported, Although the clinical course and radiological appearances suggested a brain tumour histopathological examination dem...
Lipomas of the corpus callosum are rare congenital conditions. These lesions are often asymptomatic but may present as epilepsy, hemiplegia, dementia or headache. Computerized tomography and magnetic resonance imaging make the diagnosis of lipomas feasible at any site of the intracranial space, beca...
We report another case of upward shunt migration in a newborn boy suffering from hydrocephalus caused by aqueduct stenosis. Several hypothesis trying to explain this dysfunction are presented. Measures to prevent this complication are suggested.
A/21-year-old man presented with headache, left hemiparesis and hypertension. Xantochromic cerebrospinal fluid was obtained by lumbar puncture. Aortic coarctation and two aneurysms in the bifurcation of the left internal carotid artery and one in the bifurcation of the right internal carotid artery ...
Pseudomeningocele formation is a rare complication after lumbar disc surgery. In the present paper, we report a case of sympromatic postoperative lumbar pseudomeningocele diagnosed by magnetic resonance imaging and treated surgically.
A case is reported of large intracranial plasmacytoma arising from the dura mater and involving the dura of the left cerebral convexity, tentorium cerebelli and the dura of the posterior fossa in a 7year old girl is reported.
We report a series of 54 children with traumatic epidural hematoma. All patients were admitted to the neurosurgery department of Cerrahpaşa Medical Faculty of Istanbul University between years 1982 and 1992. There were 5 infants (0-2 years old) in the series. In children (3 -15 years old, Epidural h...
Multiple tumours of the CNS are relatively rare and almost half are accompanied by Von Recklinghausen's disease. In this report two cases of multiple tumours of the CNS without Von Recklinghausen's disease are presented. Case 1 had five CNS tumours (two intracranial meningiomas at different sites, ...
The association of a metastatic carcinoma with a cerebral vascular malformation is presented. Although metastases into slow growing, vascular intracranial tumors are occasionally reported, this association does not seem to be reported previously. This case supports the hypothesis that distribution o...
We report a case of a ruptured saccular aneurysm of the distal posterior cerebral artery (P3). The aneurysm was successfuly clipped through an occtpital interhemispheric approach and the patient was discharged without any neurological deficit. Aneurysms in this location are rarely encountered and th...
A complication of treatment of a carotid-cavernous fistula by detachable balloon technique is presented. During occlusion of the fistula, a balloon moved distally and occluded the middle cerebral artery. The patient underwent microsurgical embolectomy of the balloon and simultaneous closure of the f...
Intrasellar meningioma is a rare disease which is difficult to diagnose preoperatively. We describe an interesting case of intrasellar meningioma in a 39-year-old woman who presented with amenorrhea, galactorrhea and severe headaches for six months. An intrasellar mass was demonstrated by computed t...
A rare tumour occurring in the cerebellar midline and consisting of a mixture of medulloblastoma and mature and immature striated muscle is usually referred to as "medullomyoblastoma". The origin and nature of medullomyoblastoma are controversial. In this report, we describe the histological, and im...
The authors report two cases of rarely seen intra abdominal complications of ventriculo-peritoneal shunts (extrusion of abdominal catheter into the serotum and intestinal perforation). In each case, the treatment is outlined.
A 62 year old man was admitted to hospital with the complaints of paraesthesia and aching in the lateral right arm. Neurological and radiological examination revealed cervical root compression due to vertebral artery loop. This is of interest since such a vascular anomaly is not mentioned in the lit...
Haemangioblastomas are true vascular neoplasms which progress inexorably to a atastrophic clinical situation if left untreated. They are mostly intramedullary tumours rarely seen in the extramedullary space. An unusual case with a solitary spinal cord haemangioblastoma located purely in the intradur...
The case of a 26-year-old man with extraneural metastasis from intracranial glioblastoma multiforme is presented. The patient was operated on three times in five years. After the second operation, metastasis occurred direct to the cranium and to the dura mater and remote metastasis to the left cervi...
Spinal epidermoids, with their well-known specific characteristics are usually subdural-extramedullary in location. In this report, a 3-year-old boy with intra-extramedullary epidermoid tumour associated with an abscess is presented. This is the first reported case of infected spinal epidermoid with...
In this paper, the authors describe a 39-year-old man admitted with the complaint of generalized convulsions, headache and amnesia. The radiological and neuropathological findings were interhemispheric epidermoid tumour, which is a rare location. The turnour was removed completely. The diagnosis and...
A case of cerebellar arteriovenous malformation associated with three aneurysms of the posterior inferior cerebellar artery is reported. Theories concerning the aetiology of the combination of these lesions are reviewed and the problem of which lesion the priority of surgical management should be di...
A case of intradural extramedullary hydatid cyst with spinal cord compression located in the cervical region is presented. The diagnosis was made preoperatively on the basis of MRI findings. Many cases of cranial or spinal extradural hydatid cyst have been reported in the literature but intradural e...
A case of giant intradiploic epidermoid cyst which eroded both tables of the skull and expanded especially to the posterior fossa is presented. Despite the large size of the lesion, the patient had only mild symptoms and left cerebellar signs. These slow growing, giant lesions are benign and can be ...
A case of intramedullary metastatic cord tumour which originated from a bronchogenic caranoma is presented here with its rarity and difficulties in diagnosis.
During pregnancy, a cerebrospinal fluid (CSF) shunt operation may be necessary due to hydrocephalus. Although many authors have suggested that pregnancy in a patient with a ventriculoperitoneal (VP) shunt for maternal hydrocephalus. generally has anormal outcome. VP shunt malfunctions appear to be c...
True occult intrasacral meningocele is a rare abnormality. A case associated with spinal cord tethering which was identified with magnetic resonance imaging (MRI) in an adolescent is presented. MRI's role in the diagnosis is discussed.
Intracerebral haemorrhage as a complication of thrombolytic therapy for myocardial infarction is infrequent, but it is associated with grave prognosis. We report on a patient who had an intracerebral haemorrhage as a complication of thrombolytic treatment and advocate the CT guided free-hand removal...
Endoscopic systems have now been used with relatively low complication rates in numerous situations including the aspiration and resection of colloid cysts of the third ventricle, biopsy and resection of cystic and intraventricular tumours, evacuation of intracerebral haematomas, and a terminal thir...
A young male patient with symptoms of increased Intra Cranial Pressure (ICP) is reported. Contrast enhanced computed tomography (CT) revealed multiple intracranial masses evaluated as metastatic. During preparations for operation, the anti-human immunodeficiency virus (Anti-HIV) test was found to be...
A 22 year old woman with a solid haemangioblastoma in the posterior fossa, cervicomedullary junction and spinal cord is reported. Preoperative magnetic resonans imaging (MRI) provided precise indications of the anatomical location and radiological features of the tumor that facilitated its partial r...
Post-traumatic pneumoorbitus is generally a benign, self limiting condition. However, if a fracture produces ball-valve effect allowing air to enter but not leave the orbit, then extremely high intraorbital pressure and visual loss are possible. A 30- year old man with loss of vision because of tens...
In extreme rarity, spinal cord compression may be caused by intradural extramedullary cysts. One of these rare cysts, the ependymal cyst originates, from ectopic ependymal fragments situated parallel to the central canal development and may be seen anywhere in the spinal aids. Considering this rarit...
Brainstem localizating for tuberculomas is rare. A case diagnosed and operated in our department was presented due to its localization property. He had 19 months of follow-up period and showed a certain amelioration.
Conjoined origin anomalies of lumbosacral nerve roots, if incorrectly interpreted, could be misdiagnosed as disc herniations on computed tomography (CT) and myelography. Anomalous L-5 and S-1 nerve roots appear infrequently. An underlying herniated disc may not be diagnosed because of unique anatomi...
Mutism without any disorder of consciousness level and or cranial deficit following posterior fossa surgery is not common and there is no definitive aetiological hypothesis. Here we report a case of mutism in a 6-year- old patient after total removal of a posterior fossa medulloblastoma. Mutism wa...
Reconstruction of small and intermediate defects of the skull have already been done with a variety of techniques. However, scalp defects due to trauma, congenitallesions, and resection of neoplasms are often large and can be a technical challenge. The free flap reconstruction provides a reliable, s...
We report the use of a novel plate and screw system for posterior occipitocervical fixation in a case with neurological deficit due to basilar invagination. Using this technique, a more rigid fixation than sublaminar wiring can be achieved. In addition, upper cervical vertebrae which are laminectomi...
A case of transverse sinus aplasia associated with torcular Herophili meningioma is presented. The agniography and magnetic resonance imaging findings are demonstrated.
Persistent trigeminal artery that leads blood flow rostrocaudally between the primitive internal carotid artery and the parallel longitudinal neural plexus during embryogenic development, may sometimes be associated with other vascular anomalies due to the same congenital developmental cerebrovascul...
Post traumatic bilateral posterior fossa epidural haematomas (PFEDH) are relatively rare. A case of bilateral symmetrical PFEDH one in the subacute and the other in the chronic phase is presented. The patient was managed conservatively. The case is discussed with the pertinent literature.
Mucoceles are chronic and benign lesions caused by accumulation and retention of mucus secretion in a sinus due to partial or complete occlusion of the oslium which causes progressive distention of the bony wall because of increased pressure. They occur most commonly in the frontal and ethmoidal sin...
In this paper, we report a traumatic atlanto-axial subluxation (odontoid peg fracture type II ) which is treated by one- stage transoral decompression and posterior fixation.
Sinus pericranii is a rare vascular lesion of the cranial vault. Abnormal diploic veins provide communication between the lesion and the intracranial venous sinus. Although sinus pericranii is well documented in the literature, we report a patient with sinus pericranii and epileptic seizures. To our...
Arachnoid cysts of the spinal canal communicating with the subarachnoid space are benign lesions and generaııy asymptomatic. In this article we report a case of intradural arachnoid cyst presenting with hydrocephalus and paraparesis. The case is reviewed with pertinent literature.
The source of bleeding in spontaneous spinal epidural haematoma has never been clear, but has been assumed to be venous. We report the seventh case of spontaneous spinal epidural haematoma with spontaneous resolution, which was demonstrated by magnetic resonance imaging.
The area of the midsagittal section of the corpus callosum, particularly in the region of the splenium was found to be greater in women than in men. The magnetic resonance imaging of seventy adults was examined and showed the same association previously observed, between sex differences and area of ...
Intracranial infections are among the complications of spinal dysraphism cases. Ventricular empyema and pyocephalus are those kinds of infections and are quite rare problems with limited reports in the literature. In this report, we present the evolution and management of a pyocephalus case and disc...
Early detection of acute infarct has been more important since the introduction of new therapeutic regimens such as thrombolysis. In cerebrovascular accidents, first mode of investigation is computed tomography to rule out the possibility of hemorrhage; it is possible to diagnose acute infarction in...
Glioblastoma multiforme comprises 15-20 % of all intracranial tumours. It makes a peak between the fifth and seventh decades of life but it is rare in childhood. One of the radiological and clinical properhes of glioblastoma multiforme is perifocal vasogenic oedema associated with the tumour. In the...
Childhood meningiomas, besides their rarity, grow fast, recur frequently and have a dismal prognosis when compared with adult rumors. A five year old patient presenting with headache, emesis and left hemiparesia was admitted to our hospital in 1990. On computerized tomography a 85x80x87 mm mass in t...
Papillary-follicular thyroid carcinoma usually remains localized to the thyroid bed, and in cases of metastasis, almost always involves the lungs, bones, or liver. Brain metastasis is rare and there has been no reported case of epidural metastasis of thyroid carcinomas in the literature up to date. ...
This is the case report of an eight-year old boy with a benign osteoblastoma of the C3 vertebra. The clinical, radiological, gross and histopathological findings concerning the tumor are sufficiently characteristic and exclusive to justify the diagnosis of "osteoblastoma".
We report three examples of subependymoma presented as different clinicopathological aspects. One has an ependymomatous component, the second one is associated with craniopharyngioma. In third case, there is massive hemorrhage into the large subependymoma. The clinical and histopathological findings...
The authors report a case of aneurysmal malformation of the vein of Galen associated with straight sinus anomaly (accessory straight sinus) in a 6-month-old infant presenting with clinical signs of hydrocephalus. The malformation was confirmed by computerized tomography, magnetic resonance imaging, ...
A 13 month old girl with bilateral subdural empyema that was shown to be caused by Salmonella paratyphi A is presented. Twenty-four cases of subdural empyema caused by Salmonella species/strains are reported in literature. Subdural empyema that is caused by Salmonella paratyphi A has not been descri...
A case of solitary cervical intra and extramedullary schwannoma diagnosed by magnetic resonance imaging and treated surgically is reported.
Spinal hydatid disease is a rare entity and occurs most commonly as a result of direct extension from pulmonary lesions. Isolated intraspinal extradural location of the hydatid cyst is even rarer. We report a case of an isolated spinal extradural hydatid cyst presenting with radicular compression.
A patient with spontaneous resolution of an acute traumatic subdural hematoma within 6 hours is reported. The patient was discharged two days after admission in normal neurological condition. Previously published cases of acute subdural hematomas with rapid spontaneous resolution are reviewed and po...
We report a case of a spontaneous spinal epidural hematoma extending from T2 to T4 in a 21-year-old woman diagnosed by magnetic resonance imaging, and with complete recovery after immediate surgical treatment. Prognosis of spontaneous spinal epidural hematoma depends on two factors; severity of the ...
Neurofibromatosis -2 is rare in all neurocutaneos disorders. We report a case in a 20-year old girl in whom magnetic resonance imaging revealed multiple supratentorial and infratentorial tumors associated with cervical extradural and thoracic intramedullary spinal schwannomas. This combination is ra...
Granulocytic sareoma (GS), constituted by the immature cells of myeloid serial, is a rare, solid tumor. The tumor may be observed in the course of systemic myeloid leukemia. Occasionally, granulocytic sarcoma may be observed without findings of acute leukemia. Authors report a 17-year-old female who...
An unusual case of two primary brain tumors, meningioma and glioblastoma adjacent in the brain is presented. The cause of such combined tumors is uncertain. Simple coincjdence may be the likely explanation in most cases, because both meningiomas and gliomas are relatively common. Preoperatively, the...
Vascular malformations with histopathological features of more than a single type of malformation present within the same lesion have been previously described. These lesions are very rare and named as mixed vascular malformations. In this report, we presented a case of mixed vascular malformation w...
In this article we reported pneumocephalus, which developed ten years after a ventriculoperitoneal shunt operation. The operation was performed to treat hydrocephalus secondary to stenosis of aqueduct . In this case, the cause of pneumocephalus was frontal sinus fistula that occurred as a result of ...
Embolization and surgical therapy were planned for a patient with a vein of Galen aneurysm. First, ventriculo-atrial (VA) shunt placement was performed due to the prevailing hydrocephalus, which was secondary to the aneurysm. After the second embolization, the patient was discharged. Eight days late...
A rare case of tuberculosis of the upper cervical spine managed with transoral surgery is presented.
Congenital dermoid cysts of the central nervous system are rare lesions. Congenital dermoid cysts located over the anterior fontanel are reported in two Turkish infants. These two cases are examples of such a lesion in an infant of non-African descent.
We report a case of local metastasis of an anaplastic astrocytomas in a six-year-old boy, occurring four months after a stereotaxic biopsy. In central nervous system, implantation metastasis after stereotaxic biopsy is a rare complication. The morphology of this particular dissemination is discussed...
Lhermitte-Duclos disease is a rare disorder characterized by a slowly enlarging mass lesion in the cerebellum. A case of histopathologically confirmed Lhermitte-Duclos disease is reported and our findings are discussed.
Delayed holocalvarial synostosis is an uncommon form of craniosynostosis. We report in this article two children with delayed holocalvarial synostosis. Neurological examination was normal but skull X-rays showed diffuse digital impressio and synostosis of all calvarial sutures in both patients. The ...
The authors describe a woman with visual loss and epilepsy that were caused by removal of a meningioma on the right sphenoidal ridge in an operation 5 years prior to presentation. The patient started to improve neurologically after omental transplantation to the injured optic chiasma and right tempo...
Fracture of the occipital condyle is a very rare injury. Complaints in these cases vary from upper cervical pain to the multiple cranial nerve palsies. We report the case of a traffic accident victim who had occipital condyle fracture with no clinical symptoms about these fracture. A fracture of the...
Astroblastoma is a rare and distinct type of aggressive glial tumor for which there is much confusion regarding the diagnostic criteria. We present a case of astroblastoma and review all relevant literature, aiming to discuss astroblastoma from the clinical, pathological, management, and prognosti...
The aim of this report is to investigate the pathogenesis and surgical treatment of encephalocele located in the sphenoid sinus and presented with spontaneous rhinorrhea. The data of a patient with sphenoid sinus encephalocele was analyzed in association with the review of literature. The patient ...
Glioblastoma (GBM) is the most aggressive primary tumor of the central nervous system (CNS) in adults. Its growth has been always described as locally invasive. This tumor rarely penetrates dura mater and invades extracranial structures. We present a case of GBM, which occurred in a 39-year-old ma...
The pathway of the vein of hypoglossal canal has not been mentioned in venous origin pulsatile tinnitus. We wished to clarify the possible complications related to this venous variant. We described 2 rare cases of troublesome pulsatile tinnitus associated with prominent vein of hypoglossal canal, ...
Demyelinating pseudotumor is a rare inflammatory demyelinating disease of the central nervous system (CNS) that has a similar clinical presentation and computed tomography (CT) and magnetic resonance imaging (MRI) imaging findings as brain tumors or abscesses. Unlike brain tumors, demyelinating ps...
Arteriovenous malformations (AVMs) commonly present with seizures and hemorrhage. Hydrocephalus associated with an unruptured AVM in an adult patient is exceedingly rare. A 37-year-old male patient presented with total visual loss in his right eye and severe impairment in his left eye. His evaluat...
Primitive neuroectodermal tumors (PNETs) are easily detected, and the diagnosis made by neuroradiologic imaging. Leptomeningeal seeding is a common complication and carries a poor prognosis. Primary leptomeningeal PNETs are rarer and difficult to diagnose on magnetic resonance imaging (MRI) or cer...
Ectopic recurrence of craniopharyngioma is extremely rare. Two mechanisms have been proposed to explain this phenomenon: direct implantation along the previous surgical tract and dissemination via cerebrospinal fluid (CSF). We present a case of ectopic recurrence along the surgical route after tra...
We report the first case of postoperative acute subdural hemorrhage following extended transsphenoidal surgery (TSS). The patient was a 74-year-old woman with a cystic suprasellar craniopharyngioma with panhypopituitarism. Extended TSS resulted in complete tumor removal. However her consciousness ...
We report imaging findings of a 64-year-old male patient with a ruptured epidermoid cyst (EC) known to be constant over the 23-year follow-up and showing malignant transformation to squamous cell carcinoma (SCC). Computed tomography (CT) and magnetic resonance imaging (MRI) findings including diff...
Persistent idiopathic facial pain (PIFP) is a rare but challenging type of facial pain. How to manipulate such a problem becomes more contentious in cases with bilateral complaints. In situations when conventional treatments fail to reduce the pain, some treatment options like nucleus caudalis dor...
The occurrence of brain tumors together with aneurysms has been considered as an uncommon phenomenon. However, its incidence may be underestimated. This coexistence is a diagnostic challenge, but also a therapeutic one as no consensus has been reached. We report two cases of a 71 and 67 years old ...
Kyphoplasty is a minimal invasive technique with a low rate of complications. To the best of our knowledge, perforation of gastric wall following kyphoplasty has not been described yet. We present a case that was operated for radical resection of esophageal carcinoma eleven years ago and who under...
Congenital glioblastomas are uncommon tumors of infancy with unique molecular features and usually better prognosis compared to their pediatric and adult counterparts. A 15-day old newborn harboring a congenital glioblastoma undiagnosed at pregnancy presented to our emergencies with rapid neurolog...
Sinonasal teratocarcinosarcoma (SNTCS) is a rare malignancy of the nasal cavity and paranasal sinuses. Histologically, this tumor consists of mature and immature components of epithelial, mesenchymal and neuroectodermal origin, which may be present in varying proportions. This morphological hetero...
Idiopathic distal anterior choroidal artery (AChoA) aneurysms are particularly rare. Their diagnosis and treatment are difficult because of the particular characteristic of pathological anatomy. Our case mainly presented with intraventricular hemorrhage. His idiopathic aneurysm was located in the ...
Intracranial schwannomas are benign tumors that arise from Schwann cells. Since it is well known that optic and olfactory nerves do not have a Schwann cell sheath, schwannoma should not develop from these nerves. We report a very unusual case of a 73-year-old female who presented with generalized ...
Herpes zoster (shingles) is a viral disease, characterized by painful skin eruptions and neuropathic sensory symptoms. Motor involvement and brachial plexus involvement in herpes zoster are rare conditions. Together with antiviral medication and pain therapy, palliative and supportive modalities t...
Tumors of the endolymphatic sac are locally invasive temporal bone neoplasms. Radical surgical excision is the treatment of choice; however, the aggressive nature of these tumors can make total excision impossible. Recurrence is common in cases of incomplete resection. Gamma knife radiosurgery was...
Bilateral thalamic dysfunction secondary to venous congestion may result from either venous sinus thrombosis or high flow arteriovenous malformations or a combination of both. We present a case of bilateral thalamic edema resulting from concomitant choroid plexus arteriovenous malformation (AVM) a...
Supratentorial hemangioblastomas (HBLs) are exceedingly uncommon. They account for less than 5% of all central nervous system HBLs. The commonest location is the cerebral cortex. Rarely, they can involve the visual pathway. Most of the reports have focused on the differential diagnosis, since depe...
Direct exposure and cannulation of the superior ophthalmic vein (SOV) provides an alternative access to reach the cavernous sinus for carotid-cavernous fistula (CCF) embolization, when classic transvenous routes through the inferior petrosal sinus (IPS) or facial vein are not feasible. We have use...
Ameloblastic carcinoma (AC) is a rare and aggressive malignant epithelial odontogenic tumor that may arise either from the mandible (66.6%) or the maxilla (33.3%). Besides being formed de novo, the tumor can develop from a pre-existing ameloblastoma or odontogenic cyst. The clinical course of AC i...
Spinal subarachnoid hemorrhage is a rare condition that usually occurs because of secondary causes and idiopathic spontaneous ones are extremely rare. We report a 56-year-old woman who presented with severe headache, neck pain and urinary retention. Magnetic resonance imaging revealed subarachnoid...
We report on a large fusiform aneurysm in a 20-year-old male with a history of cerebral palsy. Aneurysm location relative to four anatomical posterior cerebral artery segments dictates which approach should be used for treatment: pterional transsylvian, subtemporal, or parietooccipital interhemisp...
We describe herein intraoperative effectiveness of indocyanine green (ICG) video angiography to confirm dural arteriovenous fistulae. A 62-year-old man with a residual symptomatic dural arteriovenous fistula that was previously embolized at another institution is presented. On neurological examina...
All patients were acute, multi-segment cervical spinal cord compression injury secondary to subaxial cervical spine fracture. These patients underwent emergency posterior cervical pedicle screw-rod/plate instrumentation combined with unilateral open-door laminoplasty. Well-placed pedicle screws an...
The surgical approaches for spinal tumors, to a great extent, have been developed in accordance with the developments in medical technology. Today, many surgical techniques are implemented as anterior, anterolateral, posterior, posterolateral and combined approaches. Due to its low morbidity, the ...
Ectopic recurrence of craniopharyngioma in the cerebellopontine angle after surgical resection of a suprasellar craniopharyngioma is rare. Thus, only 5 cases were reported with a delay ranging between 4 and 26 years after removal of the primary tumor. We report a unique case of ectopic recurrence ...
Spinal intradural primary malignant peripheral nerve sheath tumors (MPNST) are rare in patients without neurofibromatosis. Here we represent a 3-year-old girl of primary intradural spinal malignant peripheral nerve sheath tumor. The tumor was removed partially and MPNST was diagnosed in the histop...
Pituitary apoplexy is a medical condition that needs urgent diagnosis and treatment. It may occur spontaneously or may be precipitated by a variety of reasons including dynamic endocrine tests. Although pituitary apoplexy is usually seen in nonfunctional pituitary adenoma, it can also be seen in A...
Although neurological features are commonly encountered in Whipple"s disease (WD), presentation with purely neurological patterns is uncommon. Exclusive confinement to the central nervous system (CNS) is extremely rare. In these cases, the development of an isolated cerebral mass is exceptional. ...
The authors report on a patient harbouring an unruptured cortical arteriovenous malformation (AVM), who had presented with obstructive hydrocephalus due to compression of the cerebral aqueduct by a large venous varix. A ventriculoperitoneal (VP) shunt was inserted in emergency. Due to its large vo...
Aneurysm of the anterior inferior cerebellar artery (AICA) is a very rare entity, and the manifestation and manipulation of such aneurysms remain contentious. In this paper, we report a case where a successful surgery for an olfactory groove meningioma was performed and the patient discharged, but...
Neurological injury is a potential complication of anterior cervical discectomy (ACDF). Iatrogenic trauma, hypoxic-ischemic damage during surgery or epidural hematoma could cause neurological deterioration after surgery. This is the first case being reported of neurological deterioration after an ...
Intracranial or extracranial pseudoaneurysms due to penetrating head injuries with gunshot are very rare entities. As the pseudoaneurysms of the superficial temporal artery usually present with a pulsating mass lesion beneath the scalp, intracranial pseudoaneurysms are manifested with symptoms inc...
Treatment of aggressive pituitary tumors may be challenging. Temozolomide (TMZ) is a promising agent when conventional treatment methods fail. We present three patients with aggressive pituitary tumors with atypical morphology, who were resistant to conventional treatments and treated with TMZ. Th...
Aneurysms of the distal anterior cerebral artery (dACA) are rare, consisting only 2-6% of all intracranial aneurysms. dACA aneurysms are often associated with anomalies such as azygous, bihemispheric and triplication of ACA. Also, accessory anterior cerebral artery (accACA) is an anatomical varian...
The primitive neuroectodermal tumors (PNETs) of the spine are rare. They are usually intramedullary and reported in children. We herein report an epidural PNET of lumbosacral area presenting with the cauda equina syndrome in an adult. A 38-year-old woman presented to our emergency room with acute ...
Rebleeding of cerebral aneurysms has been previously reported during diagnostic angiography. However, capturing the exact moment of active rebleeding of a cerebral aneurysm during angiography is extremely rare. Here, a case of a rebleeding middle cerebral artery aneurysm during diagnostic digital ...
Recently, the use of magnetic dental implants has been re-popularized with the introduction of strong rare earth metal, for example, neodymium, magnets. Unrecognized magnetic dental implants can cause critical magnetic resonance image distortions. We report a case involving surgical failure caused...
Meningioma is a neoplasm derived from meningothelial cells. Grade1 meningiomas consist of 9 different subtypes. One of the rare subtypes is metaplastic meningioma. Metaplastic meningioma could be defined as "xanthomatous meningioma" in the presence of prevalent xanthomatous changes. A 32-year-old ...
Phantom limb pain in amputee patients is not well defined in the literature. Also, there is still no clear information on the definition and treatment of phantom radicular pain, in which amputee patients have radicular pain. This phenomenon, called phantom radiculitis or phantom radiculopathy, has...
Metastases from tumors to systemic cancers are rare. The most common intracranial recipient tumor is meningioma. Metastasis from gallbladder cancer has been previously reported from only one patient during autopsy. We present a case of a 72-year-old woman who underwent surgery for right frontal sk...
Chordomas are the tumors commonly involving base of skull which are predominantly solid in consistency. A cystic chordoma of the cavernous sinus is an extremely rare entity and has never been reported. We report a 26-year-old male presenting with gradually progressive right-sided sixth nerve palsy...
Intraorbital arteriovenous fistula (AVF) is a very rare disease; therefore an optimal treatment strategy has not yet been established. Here we describe the use of high-resolution cone-beam computed tomography (CBCT) and selective angiography to visualize the detailed anatomy of orbital vessels. Th...
Supratentorial embryonal tumors are very rare malignant tumors of neuroectodermal origin, characterized by an aggressive clinical behavior. They occur prevalently in children. They have been sporadically described in adults and represent an even rarer occurrence in elderly patients, raising many i...
Embryonal tumor with multilayered rosettes (ETMR) is a new entity in the group of primitive neuroectodermal tumors of the central nervous system (CNS). It combines histopathological features of neuroblastoma and ependymoblastoma. This tumor occurs mostly in the first five years of life. A hallmark...
Chordomas are locally aggressive malignant tumors due to their recurrence potential and originate from embryonic notochord remnants. Chordomas can originate anywhere on the axial skeleton. They are extradural and spread by bone destruction. Chordomas are locally aggressive tumors that invade the d...
Moyamoya disease is an idiopathic progressive cerebrovascular steno-occlusive disorder characterized by the formation of numerous collaterals called Moyamoya vessels. Accurate evaluation of vascular status and cerebral blood flow (CBF) is needed for prompt treatment to prevent ischemic and/or hemo...
The medical literature reports an association between cerebral neoplasms and aneurysm formation. Some related aneurysms are detected during preoperative screening, whereas others are detected during or after surgery. We report a patient with de novo cerebral feeding artery aneurysm that we managed...
Spinal epidural venous angiomas are extremely rare. We report the case of a 60-year-old man who presented with disc herniation symptoms, complaining of pain in his left leg and numbness, especially at the base of the knee. On physical examination, the Lasègue test was positive at 45 degrees on th...
The true incidence of hemorrhagic venous infarctions in deep brain stimulation (DBS) procedures is very difficult to determine. These hemorrhagic venous complications are very rare and often grouped as all hemorrhagic complications. We report the clinical cases of 2 patients with Parkinsonâs dis...
Reported is a unique case of Chiari I malformation with syringomyelia and medullar hemorrhage, which became symptomatic 4 days after a craniocervical trauma when the patient was doing neck exercises. The patient manifested respiratory arrest, tetraparesis, and persistent lower cranial nerve dysfunct...
Penetrating stab wounds of the skull rarely occur in civilians. In the absence of direct injury to the brainstem or laceration of a major intracranial vessel, the prognosis for these injuries is good. Transorbital stab wounds causing intracranial complications are more common in children than in adu...
Intracranial mesenchymal chondrosarcomas, and especially those that originate from the dura mater, are very rare. This paper describes two cases of primary intracranial mesenchymal chondrosarcoma that originated from the right frontal dura mater and the left tentorium. The patients were both females...
We present a case of hypothalamo-pituitary abscess of unknown origin. The diagnosis of abscess was made during surgery. The difficulties in diagnosing and managing this entity are stressed.
Malignant fibrous histiocytoma rarely affects the cranium. This report describes a case of primary osseous malignant fibrous histiocytoma of the temporal bone in a 58-year-old male patient. The tumor was thought to have originated in the inner table of the bone of the skull, with subsequent intracra...
A subdural-peritoneal shunt was placed in a geriatric patient who had a chronk subdural hematoma (CSH). After the procedure, a second CSH developed on the contralateral side, and this hematoma resorbed spontaneously without further intervention. This patient's treatment is discussed relative to the ...
A 14-year-old male patient presented with the chief complaint of tremors in his left arm and leg, and a history of seizures since age 3. The patient had been diagnosed with partial epilepsy, and had been taking anticonvulsant medication for 6 years. He had been having four to five seizures a day in ...
We report a rare case of pituitary tuberculoma. Surgery was performed via the pterional approach, and the lesion was totally excised. Based on the histopathological diagnosis, the patient underwent 9 months of triple-drug antituberculosis treatment with isoniazid, ethambutol and rifampin.
Radiological examinations of a 21-year-old man with headache and gait abnormality revealed hemangioblastomas in both cerebellar hemispheres and in the cervical spinal cord. There were also other findings consistent with the diagnosis of von Hippel-Lindau syndrome (VHLS), but no retinal hemangioblast...
One to two of all Echinococcus granulosus infections involve the brain, and the finding of a hydatid cyst in the aqueduct of Sylvius is extremely rare. We describe the case of a 10-year-old girl with a symptomatic hydatid cyst in the aqueduct of Sylvius. The patient exhibited signs of elevated intra...
Lymphangioma is a relatively common tumor of soft tissue, but a rare primary lesion of bone. Very few eases of skull lymphangioma have been reported to date. We describe a patient with solitary lymphangioma of the skull that was treated by total exeision and autogenous bone grafting. We also review ...
Fibrous dysplasia is a congenital, nonfamilial, metabolic disturbance that produces 2.5% of all osseous tumors, and more than 7% of all nonmalignant tumors in bone. Involvement of the temporal bone, however, is relatively rare. An 8-year-old girl presented with progressive hearing loss. She had a ma...
Osteochondroma of the spine is a rare condition that may or may not be accompanied by neurological dysfunction. We report a case of cervical osteochondroma originating from the transverse process of the fifth cervical vertebra, and discuss the main clinical, pathological and radiological features th...
Desmoplastic infantile neuroepithelial tumors (DINTs) are superficially located supratentorial neoplasms that include masses known as "desmoplastic infantile gangliomas" (DIGs) and "desmoplastic infantile astrocytomas" (DIAs). Apart from the presence of ganglion cells in DIGs, these tumors and DIAs ...
This report describes the case of 49-year-old female patient who developed a lumbar spinal subdural hematoma as a complication of lumbar discectomy. We give the details of the case and review the relevant literature. Our conclusion is that spinal subdural hematoma should be considered a possible pos...
This report describes two cases of spinal epidural abscess. At presentation, both patients complained of cervical pain and weakness in the arms and legs. Their neurological examinations revealed quadriplegia and tetraparesis, respectively. In both cases, the definitive diagnosis was established preo...
Cervical osteophytes are frequently found in geriatric patients. Although it is uncommon to observe dysphagia induced by these osteophytes, this is an important and treatable condition. The diagnosis may be established using plain radiographs of the spine, esophagography, computed tomography, or mag...
This report describes a case of 9-month-old boy with dural astracytoma. The patient presented with monoparesis on the side contralateral to the cranial tumor. Computerized tomography revealed a cystic mass in the frontal lobe, and this was treated with surgery alone. We review the clinical, radiolog...
It is rare to find a cerebral arteriovenous malformation and a primary brain tumor in the same patient. A literature search revealed only 33 such cases. We report the case of a patient with an arteriovenous malformation and a meningioma in the same cerebral hemisphere, and discuss the clinical and r...
Primary Ewing's sarcoma of the cranium is quite uncommon. Pre or peroperative recognition of this disease is important as it leads planning the surgical strategy which effects the prognosis. We present a case of primary Ewing's sarcoma originating from mastoid bone and invading petrous bone, occipit...
The authors report a case of large suprasellar arachnoid cyst in a 32-year-old woman. The patient presented with amenorrhea and galactorrhea, which were both caused by hyperprolactinemia. These are rare symptoms among the various endocrinologic features that can accompany suprasellar arachnoid eysts...
It is extremely rare to see eosinophilic granuloma of the central nervous system without osseous or multisystemic involvement. Only two adult cases with isolated cranial nerve involvement have been reported to date. This report describes an adult patient with isolated eosinophilic granuloma of the o...
This report is of a patient with an isolated sellar tuberculoma with suprasellar extension in association with thickening of the pituitary stalk who presented with signs and symptoms of hypopituitarism. Magnetic resonance imaging showed a sellar mass with suprasellar extension associated with thicke...
Granuloma annulare is a benign inflammatory skin lesion of unknown etiology that is usually seen in adults and children and subtypes of it includes localized granuloma annulare, generalized granuloma annulare, subcutaneous granuloma annulare and arcuate dermal erythema. Etiology and pathogenesis of ...
Cavernous malformations are benign vascular lesions of the central nervous system that lack intervening normal brain parenchyma. They can be seen almost anywhere that normal vasculature is available. Lesions are raspberry-like, thinwalled vascular sinusoids without smooth muscles containing hemoside...
Hemangiomas are tumors of vascular origin comprising approximately 7% of all benign tumors. Intramuscular hemangioma is a rare condition and hemangiomas of the head and neck make up less than 15% of intramuscular hemangiomas. Temporalis muscle is an uncommon location for intramuscular hemangioma and...
Pneumocephalus has been reported after posterior fossa surgery especially with procedures performed in the sitting position. The gravitational effect is the decisive factor in the development of pneumocephalus. The entrapped air in the aqueduct may enlarge due to several factors such as elevated bod...
Venous angiomas were found to be the most common cerebral vascular malformations, composing 63% of such lesions in two autopsy series. Annual bleeding risk associated with venous angiomas is about 0.22 % per year. Venous angiomas are generally silent lesions because of their dynamic features, and ar...
Patients with traumatic brain injury constitute a diagnostic challenge since peripheral nerve injuries may be overlooked due to cognitive dysfunction and priority given to life-sustaining measures. Electromyography may be helpful in the differential diagnosis of weakness and atrophy. Problems specif...
Ischemic stroke and brain abscess are life threatening, severe medical conditions requiring urgent and comprehensive evaluation. Brain abscess is a very rare and dangerous complication of ischemic stroke that can be treated successfully when diagnosed. Association of these two life threatening condi...
Extensive and aggressive surgical removal is treatment of choice for patients who have chordomas of the cranial base. Well-developed micro s u rgical techniques, as well as good surgical judgment learned from experience are essential to avoid major morbidity. A 14-year-old female presented with pro ...
Objective: Predicting the age of subdural hematomas on computed tomography (CT) scans is particularly significant for forensic reasons, and for understanding the lesion's natural history, pathogenesis, and morphology. A case of mixed-density subdural hematoma on CT is discussed, and the classificati...
Intramedullary lipomas are slow-growing congenital tumors that are usually not amenable to complete resection. In this article, we present a rare case of cervical intramedullary lipoma not associated with spinal dysraphism.
A 28-year-old man sustained blunt forehead trauma in a traffic accident. He had a right orbital roof fracture and there was loss of vision in the right eye. At presentation, the visual acuity in the injured eye was light perception without projection, and there was a right afferent pupillary defect....
Objective: The cervical synovial cysts are unusual extradural lesions which may cause radiculopathy or spinal cord compression. The aim of this paper is to describe a case of cervical synovial cyst and discusses the clinical, radiological, and pathological features of these rare lesions. Methods: A...
A 26-year-old male with a type II sylvian arachnoid cyst of the middle cranial fossa developed spontaneous subdural hemorrhage. The only presenting sign was headache. The hematoma was evacuated and during surgery it was noted that the cyst was communicating with the subarachnoid and subdural spaces....
Objective: Langerhans' cell histiocytosis is a disease that can involve many organs or remain localized to one organ. The hypothalamus is the most common site of solitary involvement of the central nervous system, and other locations have only been reported rarely. This report describes an unusual c...
Fibrous dysplasia is a congenital, benign and progressive disease of bone. It is characterized by the replacement of normal bone by fibro-osseous tissue and when craniofacial region is involved enlargement of the affected bones, neurovascular compression and facial deformities can be seen. Complete ...
Objective: Medulloblastoma is one of the most common primary tumor of the central nervous system in childhood and is uncommon in adulthood. They are usually unilocular. Multifocal localization in cerebellum is very rare and only 3 cases were found to be reported in the literature. The aim of this re...
Primary hydatid disease of the rib is very rare, even in endemic areas. We describe a patient who presented with recurrent costal hydatid disease that caused spinal cord compression and progressive paraparesis 7 years after the initial cyst removal surgery. In the first operation, cysts were removed...
Objective: Ectopic meningiomas are rare tumors. In this paper, we describe a patient with lumbosacral meningeal hamartoma and hypertrichosis. Methods: An 18-year-old female with a red-violet skin lesion on her lower back was determined spina bifida at L5-S1 by x-ray. Magnetic resonance imaging sequ...
The superior orbital fissure syndrome (SOFS) is a very rare condition, especially due to trauma and it's therapeutic managements are still controversial. We present a case of SOFS and discus the timing and variety of surgical approaches. Although in most cases, a partial to complete spontaneous rec...
Three cases of posttraumatic internal carotid artery pseudoaneurysms presenting with epistaxis and associated direct carotid cavernous fistulae in two of the patients are presented. The rare association of the two types of posttraumatic internal carotid artery damage as well as the method and outcom...
Missile injuries to the head account for the majority of penetrating wound of the brain. Low-velocity penetrating cranial injuries excluding gunshot wound are seen infrequently in civilian practice. Most cases result from industrial accidents, criminal assaults and self-inflicted injury. This repor...
This technical note describes a surgical technique than can be used to reconstruct the craniotomy flap in cases of severe brain swelling. Extensive craniotomy with duraplasty and drilling of the inner table of the craniotomy bone flap are the main features of the method. In appropriate cases, this t...
Lumbar discectomy is the most used operative technique at neurosurgery clinics around the world. The complications of lumbar disc operation include infections, dural tear, bleeding, vascular and intestinal injuries. Infectious complications of lumbar disc surgery are superficial and profound tissue ...
An unusual case of spinal dysraphism in a 74 year old woman is reported. Patient was presented with slight lumbar pain and diagnosed coincidentally. Neurological examination was normal. Magnetic resonance imaging (MRI) revealed tethered spinal cord, diastematomyelia, terminal syringomiyelia, and deg...
A patient disclossed a saccular anterior communicating aneurysm and a frontobasal venous angioma was presented. Up to our knowledge this condition is rare and a common embryogenetic origin can not be hypothesized. It may have clinical significance during determination of the surgery.
Aberrant regeneration of the third cranial nerve is a well-known condition that can develop after head trauma or intracranial aneurysms. Horizontal gaze-eyelid synkinesis, pseudo-V on Graefe phenomenon, and limited elevation and depression of the eyelid with retraction of the globe are common signs ...
In this report we presented a case of an intracranial foreign body granuloma found in a 54-yearold female patient 10 year after she underwent a craniotomy for a right fronto-temporal convexity meningioma. While recurrence of meningioma is well known, foreign-body granuloma is a very rare intracrania...
McCune-Albright syndrome is a specific category of fibrous dysplasia in which the majority of cases feature craniofacial involvement. Mucoceles sometimes accompany this rare condition. This report describes a patient with McCune-Albright syndrome who had a giant mucocele within the dysplastic fibrou...
The authors presented two patients with suggestive of intracranial cystic masses in magnetic resonance imaging whose neurologic deficits completely disappeared without surgical treatment. The first patient was a male teenager who experienced sudden neurologic deficits five years ago and MRI showed a...
Objectives: Striopallidodentate calcinosis is a relatively rare pathological condition encountered in neurological practice that presents with a range of clinical symptoms. Often this lesion is first detected as an incidental finding on radiological examination. Patients and Methods: We report two...
This report describes a case of 28-year-old female with direct percutaneous embolization of a carotid body paraganglioma followed by surgical excision of the lesion. Preoperative angiographic embolization of such tumors has reduced intraoperative blood loss significantly and has caused shrinkage in ...
Cerebral radionecrosis is uncommon but important complication of radiation therapy of extracranial and intracranial tumors.In this report we present a case who operated for squamous cell carcinoma of left eyelid and received radiotherapy a total dose of 5250cGy after operation 18 months before admis...
Synovial cysts of the spinal canal are very rare. We report a case in which synovial cyst of a spinal facet joint in the lumbar region caused nerve root compression. The clinical picture of intraspinal synovial cyst can mimic many other conditions, and this lesion should always be included in the di...
Perineural cysts are usual1y asymptomatic and rarely require surgical treatment. This report describes a case that required surgical removal and an innovative method of defect closure. A sacral foraminal perineural cyst was detected incidentally on magnetic resonance imaging in a patient with a symp...
By this case report we will describe an unusual settlement of tenosynovial giant cell tumor. These lesions most often get origin from tenosynovium of the digits, knees or ankles. Rareley they can arise from bigger joints. In our case the patient had a tumor developed from the tendon sheat in the ser...
Aims: To report of a case with Guyon's canal syndrome due to tortuous distal ulnar artery. Although ulnar nerve entrapment has been quite frequently reported due to posttraumatic false aneurysms, thrombosis, or true aneurysms of the distal ulnar artery in Guyon's canal, only one case has been report...
A 44-yr-old male patient was admitted with persistent low back pain of five days duration. Neurological examination and direct x-rays were normal but lumbar spinal Magnetic Resonance Imaging showed posterior epidural mass at the level of L3 vertebral corpus with peripheral contrast enhancement. Init...
A 9-year-old boy was admitted with a right parietal local swelling and tenderness. Plain X-rays and computerized tomography scan showed an osteolytic lesion at the right parietal cranium and a giant arachnoid cyst at the left temporoparietal region. The lesion was removed, histological examination r...
Primary central nervous system lymphoma (PCNSL) is defined as the lymphoma effecting only spinal axis and cranium without systemic symptoms. PCNSL is very rare. Hystologic type of lymphoma that arising in the CNS is most commonly B cell lymphoma. In our study we reported a 47 years old female patien...
Subependymoma is a rare benign tumor of the ventricular system. It was described as a distinct entity by Scheinker in 1945. The fourth ventricle is the most common location. Many cases are asymptomatic and discovered at autopsy. Symptomatic cases often present with hydrocephalus. We present two case...
Intraoperative monitoring is considered as a useful tool to prevent neurological damage during different neurosurgical procedures. Somatosensory evoked potentials (SEP) allow simultaneous assessment of several cortical and sub cortical centers. In this case presentation, we report intraoperative ...
Infection is the major and important complication of spinal instrumentation generally requiring removal of the implant. Although findings of infection usually appear within a few months after operation, they may appear even after few years in some cases. A case with delayed postoperative infectio...
Intracranial foreign bodies due to nonmissile intracranial penetrations occur rarely. Most of these penetrating injuries result from industrial accidents or criminal assaults. The complications which cause mortality in early stage are intracerebral hemorrhage, contusion, major vascular injury and...
We report a C2 tear-drop fracture of a 69–year-old patient which occurred after a fall. Although tear drop fractures of the subaxial cervical spine mostly develop due to a flexion type injury, the mechanism is often compressive hyperextension injury at the C2 vertebra. Rigid external stabil...
BACKGROUND: Here we describe a case of PCNSL which was located peripherally as a single lesion and showed no evidence of pathological findings of lymphoma at the first biopsy. CASE DESCRIPTION: A 56-year-old man was admitted to the hospital with a talking disorder and attention deficit. The neur...
Intradural disc herniation is a serious and rare complication of intervertebral disc rupture. The preoperative diagnosis of intradural disc herniation is still d i fficult despite new neuroradiologic investigation possibilities including computerized tomography and magnetic resonance imaging and it ...
OBJECTIVE: Biochemical and radiological properties of sellar and parasellar lesions are quite similar in some instances. This leads to a difficulty in preoperative diagnosis. Here, a pituitary adenoma and a suprasellar arachnoid cyst in the same patient is presented, and possible etiopathogenetic...
Segmental artery pseudoaneurysm is a rare complication of spinal trauma. We present an unusual case of thoracic 11-12 segmental artery pseudoaneurysm caused by thoracal spine fracture. A 72-year-old man was admitted to our emergency department because of a car accident. Neurological examination reve...
Symptomatic interhemispheric arachnoid cysts (ACs) are extremely rare lesions seen more frequently in the elderly. Only 13 cases of symptomatic interhemispheric ACs in the elderly have previously been reported. Herein, we describe a 70-year-old female with symptoms of vertigo, memory and behavior di...
The cervical spine is injured in approximately 3% of major trauma patients and 10% of patients with serious head injury. We present a patient in whom an unstable cervical spine, without neurological deficit, resulting from a traffic accident was misdiagnosed as normal in the emergency room. Although...
OBJECTIVE: To present a case of a fracture of the unilateral pars interarticularis of the C2. METHODS: There is confusion in the use of anatomic terminology of the pars interarticularis and pedicle of the C2 in literature. A fracture of the unilateral pars interarticularis of the C2 was diagnose...
Migration of peritoneal catheter into the abdominal cavity is rare. We have discussed and presented the treatment options in two cases with accompanying literature. Abdominal migration of peritoneal catheter appears as a result of shunt fracture and disconnection. The complaints on presentation i...
Because of anatomical configuration of the orbit, the brain can be damaged by penetrating transorbital injuries. At first sight, this type of trauma can be thought of as a solitary eye trauma. In this paper, we report a case who suffered from brain injury by a metallic foreign body which passed i...
Spinal schwannomas are benign tumors arising from spinal nerve root sheaths. These are the most common intradural exramedullary spinal tumous. Schwannomas are mostly solid or heterogenous solid tumors. Cystic schwannomas are rare lesions. We present a 27-year-old woman with an intradural extrame...
We report a case of toxoplasmic encephalitis (TE) in a young woman without prior history of human immunodeficiency virus (HIV) infection. She was referred to our clinic with a diagnosis of multiple metastases following cerebral magnetic resonance imaging (MRI) revealing multiple ring-enhanced mas...
Approximately 9 to 15% arachnoid cysts occur in the sellar or suprasellar region. The optimal management of symptomatic suprasellar cysts continues to pose a challenge to neurosurgeons. This case report describes a patient with a suprasellar arachnoid cyst who presented at the age of 3 and was fo...
The diagnosis and management of acute subdural hematoma is important in neurosurgery practice. Rapid spontaneous resolution of acute subdural hematoma within a few hours is seen rarely on the CT scan. We present a case that enlarged the existent subdural hygroma showing rapid resolution of acute ...
Idiopathic transverse myelitis is a monophasic demyelinating disease of the central nervous system (CNS) and its recurrence is a rare entity. Existence of syringomyelia in the spinal cord in inflammatory CNS disease is not usually encountered. This case study describes a 45-year-old man who was admi...
OBJECTIVE: To describe a way to increase the exposure for L5-S1 neurofibroma extending to presacral area. Summary of Background Data: Since the neurofibromas of L5-S1 level generally extend to the extraforaminal and presacral area, their resection is difficult compared to other lumbar levels. METH...
A 28-year-old female patient presented with severe neck and back pain in 2003. No abnormality was observed at neurological examination. Syringomyelia in the cervical region was determined at MRI. MRI examination of the cranial, thoracal and lumbosacral regions was normal. The patient refused surg...
We report on syringomyelia of the thoracic spinal cord in two sisters without a Chiari or any other malformation. In both cases syringomyelia was determined by magnetic resonance imaging (MRI). Spinal MRI showed a syringomyelia between T6-T8 levels in the first sibling and between T7- T9 in the s...
Spinal epidural abscess is rare but serious medical condition which may cause permanent neurological deficits, or even death, if not treated. Staphylococcus aureus is the responsible microorganism in most spinal abscess cases. However, rarely other microorganisms like Brucella may be responsible....
BACKGROUND: Symptomatic lumbar spinal stenosis produces gradually progressive back and leg pain with standing and walking, relieved by sitting or lying. One of the uncommon symptoms is involuntary intermittent penile erection due to spinal canal stenosis. This symptom is very rare and often forg...
Transsphenoidal encephaloceles are rare and the transsellar variety is the least common. We present a 1-year-old male patient with transsellar transsphenoidal encephalocele which herniated into the oral cavity through the congenital split palate. The patient was operated on using a combined trans...
OBJECTIVE: To present a radiculopathy case due to unilateral facet hypertrophy developing three years after a lumbar disc hernia operation. CASE REPORT: A fifty two-year-old female patient, who had been operated on for a left L5-S1 herniated lumbar disc three years ago, was hospitalized and re-op...
We present a rare case of agenesis of the left internal carotid artery in a 43-yearold woman, associated with an aneurysm of the anterior communicating artery and presenting with subarachnoid hemorrhage. The left internal carotid artery was not visualized on the left carotid angiogram. The left m...
Tarsal tunnel syndrome (TTS) is defined as the entrapment of the posterior tibial nerve in the tarsal tunnel of the ankle. The etiologies of tarsal tunnel syndrome are mainly the presence of a ganglion, osseous prominence with tarsal bone coalition, trauma, varicose veins, neurinoma, hypertrophy ...
A chloroma or granulocytic sarcoma is an extramedullary leukemia. It can be encountered at any anatomical location, but until now only three cases have been reported in the cerebellopontine angle. We present an 8-year old patient with an extraaxial chloroma of the cerebellopontine angle to highli...
Endoscopic third ventriculostomy (ETV) is an effective and rather safe treatment for noncommunicating hydrocephalus secondary to aqueductal stenosis and other obstructive pathologies. It has become a popular alternative to ventricular shunts for noncommunicating hydrocephalus. Although it is a sa...
Idiopathic trigeminal neuralgia is the most common type of cranial neuralgia. Trigeminal neuralgia is a form of facial pain characterized by proximal lancinating pain confined to the somatosensory distribution of the trigeminal nerve. Bilateral trigeminal neuralgia is a rare situation with an inc...
Atypical teratoid/rhabdoid tumor (AT/RT) is a malignant embryonal central nervous system (CNS) tumor, manifesting in children, and composed of rhabdoid cells, with or without fields resembling a classical primitive neuroectodermal tumor (PNET), epithelial tissue and neoplastic mesenchyme. Around...
Vascular involvement is common in Behçet's Disease (BD). The venous system is often affected, while arterial system involvement is a rare occurrence. Intracranial aneurysm formation associated with BD is extremely rare. A 38- year-old male patient with BD under the follow-up of the Dermatology d...
Chronic subdural hematomas in young people is extremely rare and has some provoking factors such as V-P shunts, arachnoid cyst, anticoagulant drug usage, vigorous sports and coagulopathies. A static or dynamic mechanical load is almost always delivered to skull associated with either mild or seve...
INTRODUCTION and CASE DESCRIPTION: Desmoplastic infantile astrocytomas (DIA) are rare intracranial tumors of infancy with distinctive clinical and radiological features. Despite their radiologically aggressive appearance they tend to follow a benign course with favorable prognosis even after sub...
Infectious aneurysms constitute 4% of all intracranial aneurysms. The microorganisms responsible are most commonly streptococcus viridans, staphylococcus aureus and combined bacterial infections. Nonetheless, cases with no reproduction in their cultures are rather frequent. A 6-year-old patient ...
Spinal canal extradural arachnoid cyst is an uncommon, expanding lesion which may communicate with the subarachnoid space. They may be either intra or extradural with intradural cysts being less common. Spinal arachnoid cysts are usually in the thoracic spine, and they may cause symptoms due to s...
A case of a patient with bilateral internal, external, posterior external and anterior jugular vein ligations and excisions performed in the neck due to a larynx tumor is presented. Radical neck dissection is a standard otorhinolaryngological procedure in the management of head and neck cancer pa...
Following the significant advances in neuroradiology, it has been now recognized that an intracranial arteriovenous malformation (AVM) lesion and vascular aneurysm(s) might coexist more often than estimated before. A58-yearold female seen due to a subarachnoid hemorrhage (SAH) was subsequently s...
Esophageal carcinoma metastatic to the cerebellum and causing cerebellar compression is a rare entity. The authors report on the case of a 54-year-old woman in whom a metastatic cerebellar tumor secondary to esophageal carcinoma was treated. The patient presented with progressively increasing oc...
Dural sinus thrombosis (DST) usually involves the sagittal, transverse and sigmoid sinuses and is more common in women due to pregnancy, puerperium and oral contraceptive use. Other etiologies include coagulopathies, infection and head injury. We have present two DST cases following head injury. ...
Cranial bone and epidural tuberculosis is rare manifestation extrapulmonary tuberculosis. The incidence of tuberculosis of calvaria is on the rise in developing countries because of malnutrition, poor socioeconomic conditions, and immunodeficiency. We present the clinical features, radiology, hi...
Hereditary neuropathy with liability to pressure palsies (HNPP) is an autosomal dominant nerve disease usually caused by 1,5 Mb deletion on chromosome 17p11.2.2-p12, the region where the PMP-22 gene is located. The patients with HNPP usually have relapsing and remitting entrapment neuropathies du...
Congenital protein S deficiency is associated with an increased risk of venous thrombosis. A14-year-old boy presented with epileptic seizures and thrombosis of the superior sagittal sinus and frontal hemorrhagic venous infarction after ingestion of 50 mg of dimenhydrinate, an antiemetic drug. The...
Ventriculoperitoneal (VP) shunt is the most commonly performed procedure for the management of hydrocephalus. VP shunt related complications remain a persistent problem in clinical practice. However, extrusion of components of shunt apparatus is very rare. Extrusion of ventriculo-peritonea l(VP) ...
Neurofibromatosis type-1 (NF1) is a type of phakomatosis inherited in an autosomal dominant fashion. Also called ‘von Recklinghausen disease' or ‘peripheral neurofibromatosis', it comprises 90% of all neurofibromatosis (NF) cases. It is characterized by multiple peripheral nerve sheat...
A 45-month-old child who had bitemporal arachnoid cysts and macrocephaly unrelated to glutaric aciduria type 1 (GA 1) was reported. The patient was admitted to the emergency unit after head trauma at 11 months of age. CT and MRI showed bitemporal arachnoid cysts (BACs). Acylcarnitine profile was ...
Aneurysms arising from the distal portion of superior cerebellar artery are infrequently seen. They are usually assumed to result from local arterial wall disruption like proximal supratentorial artery aneurysms. Depending on institutional facilities, these particular aneurysms can be treated eit...
Aneurysmal bone cyst is a benign fibro-osseous lesion usually described in the long bones. Intraorbital aneurysmal bone cyst is a rare clinical entity with an entirely different outcome and prognosis as compared to the usual pediatric orbital tumors. The authors report magnetic resonance imaging ...
INTRODUCTION and CASE DESCRIPTION: Intramedullary lipomas are rare tumours of the spinal cord and account for about 1% of all spinal neoplasms. These lesions can occur anywhere along the length of spinal cord, but are frequently localized to the lower thoracic and lumbosacral levels. The authors ...
A 1-day-old boy with the characteristics of Adams-Oliver syndrome was presented. Adams-Oliver syndrome has a wide spectrum of anomalies ranging from aplasia cutis congenita, cutis marmorata telangiectatica congenita and transverse limb defects to lethal anomalies. Our patient had aplasia cutis c...
A 45-year-old male patient was referred for management of radial nerve palsy. His past medical history revealed that he had been injured in a car accident and broken his left humerus 4 months ago. Primary stabilization of the fracture has been achieved by the application of a long-arm plaster cas...
Apneumatocyst in the cervical spine is extremely rare and to our knowledge only a few reports have been published in the English literature. Although the etiology and natural course of vertebral body pneumatocyst is unclear, nitrogen gas accumulation is claimed. A 65-year-old-man was admitted to ...
Frontal mucocele usually presents with visual complaints like diplopia, diminution of vision, visual field defect, ptosis, orbital swelling, retro-orbital pain, displacement of eye-globe and proptosis. Very rarely it can present as a subcutaneous swelling. To the best of the authors' knowledge, o...
The redundant nerve root syndrome is defined as the association of high-grade extradural lumbar spinal stenosis with large, elongated and tortuous nerve roots. Acquired elongation of nerve roots due to the mechanical trapping at the level of lumbar spinal stenosis is assumed to be the possible me...
Although rare, the diagnosis of candidal vertebral osteomyelitis of the cervical spine should be considered in cases of quadriparesia occurring in hemodialysis patients. This disease leads to vertebral destruction and spinal cord compression. Candidal vertebral osteomyelitis constitutes a diagnos...
Leiomyosarcomas are malignant tumors of smooth muscle origin. These tumors are very rare in the head and neck region. The majority of leiomyosarcomas of the head and neck arise in the paranasal sinuses, oral cavity, jaws and superficial soft tissues like the scalp. A mass was observed in the righ...
We present a case with median and radial nerve injuries together with brachial artery occlusion after a dog bite that is seen rarely in the literature. A 26 year-old man was admitted to our emergency department with a complaint of dog bite and weakness of fingers at the left upper extremity. Ther...
Though craniopharyngioma remains the most common sellar suprasellar tumor with calcification, it can be seen very rarely in pituitary adenomas and Rathke's cleft cysts. Appreciation of the pattern of calcification in a sellar suprasellar lesion can give a clue to the nature of the lesion. The aut...
An intracranial aneurysm with a diameter larger than 25 mm is considered a giant aneurysm (GA), and represent about 3-5% of all aneurysms. They are divided into two forms, specifically saccular and fusiform. Fusiform aneurysms are rare, making up only 1% of all intracranial aneurysms. They freque...
Intradural arachnoid cysts are rare lesions that frequently arise posterior to the spinal cord in the thoracic spine region. Those located at the cervical spine level, anterior to the spinal cord are even rarer. The usual treatment of symptomatic intradural spinal cysts involves surgical removal ...
Arteriovenous (AV) fistulae, pseudoaneurysms, and lacerations may occur during disc surgery. AV fistula after lumbar disc surgery is rare. Early diagnosis and treatment of vascular complications associated with disc surgery is essential due to their high mortality and morbidity rates. We report a...
Chondromyxoid fibroma is an unusual benign tumor of cartilaginous tissues that may be confused with other some malign tumors. It is rarely seen in the skull. A 45-year-old female was admitted with painless bony swelling in the forehead. Computerized tomography demonstrated a well-defined expansiv...
In this paper we present an adult patient with the Currarino triad, associated with six habitual abortuses and chronic constipation. Our aim is to report the effectiveness of a simple surgical technique in the treatment of anterior sacral meningocele in the Currarino Syndrome. The presentation of...
Neoplasms and (non-neoplastic) focal dysplasias may coexist as a cause of seizures in both the developing and mature brain. Low grade neoplastic lesions (ganglioglioma/gangliocytoma) may present with seizures, and distinction of these lesions from focal cortial dysplasia is difficult on standard ...
Keeping in mind that lesions located in the splenium of the corpus callosum can sometimes be temporary may help us avoid invasive diagnostic and therapeutic methods. Transient lesion in the splenium of the corpus related to using or withdrawal of antiepileptic drugs are rarely encountered. In thi...
In routine surgical practice, anterior approaches are not often used to treat upper cervical pathologies. Such lesions can be difficult to access surgically. This article describes 2 cases in which the transmandibular approach was used to address anterior upper cervical pathology. One case was a ...
Herein, we present a case of anaplastic oligodendroglioma with massive spinal metastasis in the first post-operative year without any residual tumor or recurrence in the primary tumor site. Along with the reported literature, our case highlights the importance of periodic radiological evaluation ...
OBJECTIVE: Patients undergoing nasal septoplasty can face many complications. Some of these complications are rare but their results are life threatening. Being aware of this complication could prevent further problems such as enlargement of the bone and dural defect, herniation of the meninges a...
Neurocysticercosis, involvement of the central nervous system by taenia solium, is one of the most common parasitic diseases worldwide. However, isolated spinal involvement by neurocysticercosis, either intramedullary or extramedullary, is uncommon. The authors report a case of C1-C2 intradural ...
Stab injuries of the spinal cord are rare. We report a case of a 22-year-old male who was hospitalized because of a spinal cord injury resulting from a stab wound in the posterior thoracolumbar area. On admission, the patient had 2/5 muscle strength of the right leg (monoparesis) and hypoesthesia...
We report a case of large choroid plexus papilloma of the fourth ventricle in a 23-year-old woman. She presented with severe headache, dysphagia, and gait disturbances. Horizontal nystagmus, ataxic gait and quadriparesis were detected on initial examination. Imaging studies showed a large mass in...
The pyriformis syndrome is a rare entrapment neuropathy in which the sciatic nerve is compromised by the pyriformis muscle or other local structures. It is an important cause of buttock pain that may often be accompanied by sciatica. The pain is usually increased by muscular contraction, palpatio...
A 60-year-old female was admitted to our clinic complaining of a long-lasting headache. Cranial magnetic resonance imagining examination of the patient revealed a 22x24 mm extra-axial, well-demarcated, mass lesion based on the left tentorium. The patient underwent a craniotomy and the tumor was t...
Schwannomatosis is a rare tumour syndrome characterized by more than one schwannoma without any sign of neurofibromatosis (NF). A 22-year-old male patient was admitted with weakness in his extremities. Neurological examination revealed a tetraparesis syndrome below the C6 level. Magnetic resonan...
Spinal hematoma is an infrequently described complication of spinal anaesthesia. It has been described in the literature in patients with a deranged coagulation profile in the form of systemic diseases (e.g. chronic renal failure, liver failure) or anticoagulant therapy. Whatever the reason, it w...
Although the first reported surgery for lumbar disc herniation was published many years ago, there still remains little agreement for the most effective treatment protocol for symptomatic cases. Many patients with extruded lumbar disc herniation require surgical intervention due to radiculopathy ...
Chondroma is a very unusual cartilagenous neoplasm of the spine. Here we are present a case of spinal chondroma with radiculopathy. A 54-year-old female patient consulted with progressive low back pain and left femoral numbness. Lumbar spinal Magnetic resonance (MR) imaging studies showed an extr...
Cerebral extra-axial metastases mimicking meningioma are extremely rare. Imaging characterictics may not always differentiate between meningioma and metastatic tumors. A 68-year-old-woman who had been operated for renal cell carcinoma 20 years ago presented with new symptoms of an intracranial ma...
Totally cystic intradural extramedullary lesions are uncommon and form a different spectrum of conditions as compared to the commonly seen intradural extramedullary tumors. Spinal schwannomas are benign tumors arising from spinal nerve root sheaths and are the most common intradural extramedullar...
Diffuse idiopathic skeletal hyperostosis (DISH) or Forestier's disease is a common disorder of unknown etiology that is characterized by ossification of the anterior longitudinal ligament of the spine and various extra-spinal ligaments. We present the case of a 54-year-old woman with progressive ...
Subfrontal schwannomas are rare lesions. They can be misdiagnosed as olfactory meningiomas or neuroblastomas. We report a case of giant schwannoma involving the anterior cranial fossa; the frontal and ethmoid sinuses and nasal cavities. The patient presented with a year-long history of increasin...
We present a case of posttraumatic infarction in the territory supplied by the lateral lenticulostriate artery after a minor head injury in a child. A 2.5-year-old child was admited to our emergency room after a head-on fall from a height of 50cm. He developed a right hemiparesis and he could not...
Ossified chronic subdural hematoma is a very rarely seen entity. We present here a 22-year-old male who had presented with severe headache consequent to brain compression caused by bifronto-parieto-temporal ossified subdural hematoma. We evaluated our method and surgical intervention in the light...
OBJECTIVES: Intracranial metastasis of ovarian tumours is rarely seen with an incidence 0.1- 5% but simultaneous diagnosis of primary undifferentiated carcinoma of the ovary and its CNS metastasis has not been published previously. MATERIAL and METHODS: A 56-year-old woman presented with headache...
Ventriculo-peritoneal shunt, one of the most common surgical procedures performed by neurosurgeons all over the world has been associated with a number of complications; the most common being infection and mechanical failure. Most of these complications tend to increase morbidity with prolonged ...
OBJECTIVE: Blister-like aneurysms are small hemispherical bulges that usually originate from the anteromedial wall of the distal internal carotid artery and cause significant subarachnoid hemorrhage. It is very important to recognize this novel lesion as a different type of aneurysm than ordinary...
We report an 18-year-old boy who presented with seizures at the age of 12 years. He had 3 different kinds of seizures, occurring 4 to 5 times a week, despite adequate antiepileptic treatment. Magnetic resonance imaging (MRI) showed deep paramedian focal cortical dysplasia in the left parietal lob...
Dysembryoplastic neuroepithelial tumor (DNT)- like lesions arise in extracortical locations and behave in a benign fashion similar to that of cortical DNTs. They usually come to attention by symptoms and signs of increased intracranial pressure rather than focal neurological impairment. Here we r...
Traditional shooting with guns often occurs and leads to unwanted gunshot injuries in areas where celebrations are held. Such injuries have been classified as celebratory gun shooting injury in the international disease classification system. CASE: An 8-year-old female patient presented with res...
Crossed aphasia (CA) refers to aphasia occurring after right brain damage in right handers. In the literature, numerous CA cases following cerebral ischemia have been reported, but few met the criteria for a prompt diagnosis. The authors present the case of a 52-year-old woman with SAH caused by ...
A rare case of a solitary schwannoma arising within parenchyma of the brain is reported. A 37–year old right-handed man presented with a 3- month history of progressive headaches, lethargy and vomiting. The initial diagnosis being considered was primary intracranial tumor, including high-gr...
Although several different anesthetic techniques have been employed for noncardiac surgery in Eisenmenger syndrome (ES), the best anesthetic technique is still controversial. A17-year-old male with ES and an epidural abscess at the T5- T7 levels was scheduled to undergo laminectomy in the sitting...
The authors described the case of a 39-year-old man with Klippel-Trénaunay syndrome, who had an extradural meningeal cyst expanding into intervertebral foramen of lumbar 2 and 3 vertebrae. The patient suffered from low back pain radiating to the left lower extremity. Magnetic resonance imaging re...
We present a 41-year-old man with Chiari type 1 malformation and cervical syringomyelia. Although the tonsillar herniation persisted, his syringomyelia was almost completely resolved during an eleven-year time period without surgery.
OBJECTIVE: Spontaneously occurring epidural hematoma without any identified etiology is a rare phenomenon. These are often neurosurgical emergencies; therefore, prompt diagnosis and treatment are paramount. Because of the rarity of this condition, we illustrated its presentation, evaluation and m...
Fracture of the cranial bones following trauma is common. The fracture most commonly encountered in clinical practice is an undisplaced linear fracture of a skull bone or a depressed skull fracture. Compound elevated skull fracture, unlike depressed skull fracture is an extremely rare variety of ...
Cholesterol granuloma (CG) of the petrous apex is an inflammatory reaction to the by-products of eroded marrow cavities secondary to chronic obstruction of air cells within the petrous pyramid. We report a case of cholesterol granuloma in the left petrous bone occurring in a 28-year-old woman wit...
Astroblastoma is a rare glial tumor with uncertain histopathological origin and unpredictable clinical behavior. In this report, the authors present two cases of high grade intracerebral astroblastomas. Both tumors occurred in children as supratentorial, well-circumscribed, peripheral masses. The...
To date, few studies have addressed the subaxial vertebrectomy technique and related anatomical landmarks in this method. Total spondylectomy is performed via piecemeal resection or en bloc removal in a one-stage procedure associated with stabilizing the spine and preserving neurological status. ...
The amyloidoses comprise a heterogeneous group of diseases characterized by the extracellular deposition of an insoluble protein complex in various tissues. Amyloidomas in bone are most common in patients with systemic amyloidosis and plasma cell dyscrasias. Decreased clearance of ß2 microglobuli...
We present a case with bilateral internal carotid artery hypoplasia and multiple posterior circulation aneurysms who was diagnosed following a subarachnoid hemorrhage. The patient was admitted to our clinic with a history of sudden and severe headache with short-term loss of consciousness and bei...
An aneurysmal bone cyst (ABC) typically involves the long bones of the extremities, thorax, pelvis, or vertebrae. Skull base involvement is rare. We describe the case of a 9-year-old girl with ABC of the skull base. The patient had presented with nasal obstruction and headache over a period of ap...
Instability can develop after lumbar spinal surgery. What is also known as secondary segmental instability is one of the important causes of failed back syndrome. In this paper, we described a 45-year-old female patient who was diagnosed with secondary segmental instability caused by left L3 pars...
The appearance of a new lesion several years after radiation treatment for a primary brain tumor may represent different kind of pathologies. We present a 24-year-old patient who suffered from right-sided hemiparesis and ataxic gait with a history of an operation due to left frontoparieal grade I...
Primary spinal hydatid disease is rare. Spinal hydatid disease should be considered in the differential diagnosis of spinal cord compression syndrome in endemic countries and evaluated with imaging and serology. Our case was a 34- year-old man. The patient presented with progressive back pain for...
A22-year-old man with medical history of Hemophilia Awas admitted with a 3- month history of low back pain radiating to the right leg. Neurological examination revealed no abnormalities. Spinal magnetic resonance imaging (MRI) with gadolinium enhancement revealed an intradural extramedullary mas...
We report a case of Dyke–Davidoff–Masson syndrome (DDMS) in whom left vagal nerve stimulation (VNS) resulted in worthwhile seizure reduction (Engel's Classification Class III). A 20-year-old woman with DDMS whose seizures were medically intractable was successfully treated using left ...
Infratentorial subdural empyema is a life-threatening rare complication of bacterial meningitis. Infratentorial subdural empyemas constitute only a small portion of all cases with intracranial infectious diseases. We present a 15-yearold boy with infratentorial subdural empyema. Empyema was diagn...
Multiple hydatid cysts of the brain are uncommon and may be either primary or secondary. A 15-year-old boy with a huge mass of intracranial hydatid cysts (95x85x80 mm) is presented. The first manifestation was headache and vomiting, which was followed by symptoms of raised intracranial pressure. ...
Paget's disease is a chronic, focal skeletal disorder that usually affects the pelvis and spine. Spinal cases are generally asymptomatic; in the symptomatic cases, the neurological dysfunctions are related to non-compressive vascular defects, hemorrhage, sarcomatoid degeneration, spinal stenosis,...
The incidence of protozoal and helminthic infestations of the central nervous system (CNS) is less than 1%, but these infestations tend to follow a fatal course. They are more common among children, the elderly and immunocompromised individuals. CNS infections due to Entamoeba histolytica have be...
Glioblastoma multiforme (GB) is the most aggressive, and the most frequent primary tumor of the brain in adults. Presence of less-differentiated areas which exhibit a small cell morphology and neural immunophenotype is quite uncommon in GBs. Tumor tissue which had been determined in the frontotem...
Chordoma is known to be the most common primary tumor of the sacrum. Its surgery is challenging from many aspects. A large amount of bleeding is one of the biggest issues. A 52-year-old woman was admitted to our clinic with a huge mass at sacrum. The mass was diagnosed as chordoma after a needle ...
It is generally accepted that hemifacial spasm (HFS) is caused by vascular compression at the root exit zone (REZ) of the facial nerve. We saw an HFS patient caused by vascular compression of the distal portion of the facial nerve associated with configuration variation of the facial-vestibulococ...
BACKGROUND: Although pneumocephalus and pneumoventricle are well known entities in neurosurgery practice, delayed intraventricular tension pneumocephalus following shunt surgery is extremely rare. CASE DESCRIPTION: A 60-year-old man presented with vomiting, drowsiness, walking difficulty, urinar...
Choroid plexus papilloma (CPP) is a rare, benign epithelial brain tumor of the nervous system seen particularly in infants. Familial cases are extremely uncommon. Some other form of malignant tumors was noted in the relatives of patients with CPPs, and some genetic defects regarding this coincide...
We report the case of a 39-year-old woman with unilateral intracranial chronic subdural haematoma that occurred after epidural anesthesia for excision of a skin scar, complicated by postdural puncture headache. The patient had no history of trauma, headache, coagulation abnormalities, or neurolog...
Osteoid osteoma is a benign skeletal neoplasm composed of osteoid and woven bone. The majority of the lesions arise in the cortex of long bones. Osteoid osteoma of the spine is a rare primary spine tumor and those located at the thoracal spine are even rarer. The usual treatment involves complete...
Ecchordosis physaliphora is a rare congenital, benign, hamartomatous, retroclival mass derived from notochordal tissue that is typically located intradurally in the prepontine cistern. Ecchordosis physaliphora is usually asymptomatic. In rare cases, ecchordosis physaliphora can be symptomatic due...
Meningiomas are the most common benign intracranial neoplasms. Nearly 20% of all primary intracranial tumors are meningiomas. Primary intraosseous meningiomas are a subtype of the meningiomas that represents the most uncommon manifestation of meningiomas. Although rare, these tumors can be found...
Spinal intradural extramedullary schwannomas commonly occur posterolateral or anterolateral to the spinal cord. A case of a pure midline ventrally situated cervicodorsal extramedullary schwannoma in a 33-year-old female patient with subacute cord compression and sphincteric involvement is present...
The vertebral artery (VA) is well protected through its course at the cervical transverse foramina and penetrating injuries of VAare mostly caused by gun shot wounds. The mechanism of injury in these wounds is described as the kinetic energy transferred by the bullet, which always depends on its ...
Gliosarcoma is a rare tumor of the central nervous system characterized by a biphasic histological pattern. Our objective is to describe clinical, morphological and immunohistochemical features of two cases of gliosarcoma with chondroblastic osteosarcomatous differentiation and to discuss its pat...
Giant cell reparative granuloma (GCRG) is a rare, benign fibroosseous lession. It typically arises in the mandible and maxilla, and less frequently in the skull bones. We report a case of GCRG of the axis, which is the first to be reported in the literature. A 35-year-old man was admitted to our ...
Achieving complete resolution of spinal hydatid cyst disease is quite challenging when bone is involved. Many authors reported the poor outcome of posterior decompression and laminectomy for intraosseous spinal hydatid disease. In an attempt to avoid a similar poor outcome, hydatid cysts were rea...
Glioblastoma multiforme is the most common intracranial neoplasm of all primary central nervous system tumors. Glial tumors can present in different forms. Intracranial hemorrhage may occur in all central nervous system tumors to a varying degree and extent and may even be massive. A 58-year-old ...
Although anterior surgical approaches to the cervical spine have become popular and safe in recent years, they also have some complications. We present a case of loss of an anterior cervical plate screw by the natural tracts. The patient was a 47- year-old woman who was operated on for cervical s...
Penetrating injuries other than gunshot wounds or low-velocity wounds to the head are extremely rare. We report the case of a 19 year old male who sustained a penetrating craniocerebral trauma following a road traffic accident. Noncontrast CT scan revealed three foreign bodies embedded in left fr...
INTRODUCTION: Aplasia cutis congenita (ACC), is a rare anomaly presenting with a solitary scalp lesion of skin abrasion. Lesions can be multiple and on different surfaces of the body but are mostly seen on the scalp (%70) as a solitary lesion. As it is a rare disease, we aimed to describe our cas...
Intramuscular hemangiomas of the head and neck are rare congenital vascular tumors and are sparsely reported. Hemangiomas account for approximately 7% of benign tumors and usually present as a mass that suddenly enlarges. Hemangiomas are mostly seen on the trunk and extremities, but can also appe...
OBJECTIVE: The authors present the case of a dumbbell-shaped schwannoma of the upper cervical spine involving the ventral rami of C-2 sensory root and rising through the foramen magnum up to the pontobulbar junction. The 27-year-old male patient complaining of hoarseness, imbalance and experienci...
Fibrous dysplasia (FD) is an uncommon benign disorder of unknown etiology. It most likely represents a disorder of normal bone development. The disease can involve any bone in the body. In the head and neck, the skull and facial bones are involved in 10–25% of cases of monostotic FD. Involv...
Cephalhematoma (CH) is less commonly encountered problem of infancy with an incidence of 1 % however calcified CHs are seldom. The exact reason of calcification remains unclear. We report two cases of calcified CHs that developed as a complication of vacuum extraction during vaginal delivery. Cal...
PNETs of the spinal cord are aggressive and local recurrence and/or leptomeningeal spread is common. Primary spinal PNETs are extremely rare and most cases involving the spinal cord are drop metastases from primary intracranial tumors by cerebrospinal fluid. Herewith, we present a 40-day-old infa...
Myxomas are rare benign tumors arising from mesenchymal tissues throughout the body. These tumors are usually seen in the atrium of the heart and the jawbone. Involvement of the skull base with intracranial extension is extremely rare, and only a few cases of primary intracranial myxomas have bee...
We present a case of wide-necked giant aneurysm located at the P1-P2 segment of the posterior cerebral artery. The initial goal for treatment of the aneurysm was hemodynamic flow redirection with subsequent thrombosis so the procedure and involved stent placement to the neck of the aneurysm witho...
Hyponatremia is the most frequent electrolyte disorder in critically ill neurological patients. The major differential diagnoses in this situation are the syndrome of inappropriate antidiuretic hormone secretion, marked by inappropriate retention of free water, and cerebral salt wasting, characte...
In this report, the authors present a 14-year-old male patient admitted with progressive paraparesis and urinary incontinence that developed in a 3-month period. Thoracolumbar MRI revealed an intramedullary lesion starting from the level of the T10 vertebra and extending to fill the sacral spinal...
Pigmented villonodular synovitis is a benign proliferative disease of the synovial structures. This disease is most commonly seen in the extremities, and spinal involvement is extremely rare. In the relevant literature, 53 cases have been reported. We present a 66-year-old female patient with a l...
Traumatic cervical spondyloptosis has almost always been associated with disabling neurological deficit and we could only find one case without a neurological deficit reported in the literature. A 42 year old man suffering from severe neck pain following a high speed motor vehicle accident was ad...
The neurological complications of bee venom poisoning vary from optic neuritis to pontine hematoma. However, to our best knowledge, trigeminal neuropathic pain secondary to bee sting has not been reported previously in the literature. We report the case of a 52-year-old male patient with right-si...
Cemento-ossifying fibromas are benign lesions of the jaw, which arise from the periodontal membrane. Histopathologically these are composed of fibrous tissues with calcified structures resembling bone and cementum. Surgical resection is the treatment of choice. They have rarely been reported in t...
Enterogenous cysts mostly present in the cervical and thoracic region of the spinal canal and have only rarely been observed in the lumbar region. We report here a case of a recurrent enterogenous cyst in the lumbar spinal canal. A24-yearold woman presented with lower back and left radicular leg ...
Bilateral simultaneous hypertensive intracerebral hemorrhages are extremely rare. The predisposing factors and pathophysiological mechanisms leading to the development of this picture are not well known. Possible mechanisms of simultaneous multiple hemorrhages include concomitant primary hemorrha...
We present a case of a 47-year-old-woman with a complaint of cervical pain with paresthetic appearance on her left arm. She was treated with analgetics. Further radiological evaluation because of the persistent pain revealed an osteolytic destruction of the fourth cervical vertebra. The patient u...
Remote cerebellar hemorrhage (RCH) after spinal surgery is encountered extremely rarely. A 64 year-old female patient developed symptoms of deteriorating consciousness and diplopia arising on the first postoperative day after recurrent spinal surgery. Cranial CT scan showed cerebral edema and ev...
AIM: Sacral stress fractures are rare fractures presenting themselves with low back and groin pain. These fractures can be treated effectively using sacroplasty. MATERIAL and METHODS: The clinical and radiological data of three cases that underwent sacroplasty for sacral stress fractures were re...
The McCune-Albright syndrome was described as a syndrome of polyostotic fibrous dysplasia, café au lait skin pigmentation, and autonomous endocrine hyperfunction in 1937. We report a 17-year girl with early menarche and accelerated growth for the past three years. The endocrinological examination...
The authors report a case of large arachnoid cysts of the posterior fossa treated by endoscopic surgery. A 40-year-old man was admitted with a 3-month history of headache and progressive gait imbalance, with no significant medical history. At the time of admission, neurological examination reveal...
Chronic calcified/ossified epidural hematoma is an uncommon complication of ventricular shunt surgery. There are only 4 cases related to valve-regulated shunt operations in the literature. It may be seen especially in young patients with chronic hydrocephalus, probably due to craniocerebral dispr...
Bone wax is primarily used in case of bleeding of the diploic vessels of the bones in surgical procedures. It is useful in neurosurgical procudores because of its inert, nonreactive charecteristics. Bone wax is safe material and its use rarely leads to complications but there may be complications...
Chordoma is a primary sacral neoplasm of ectodermal origin and makes up %1- 4 of all primary bone tumors. It is usually present on the midline cerebrospinal axis and the most common locations are the spheno-clival region and the sacrum. The treatment of primary sacral tumors represents a challeng...
We present a very rare case of intracranial xanthoma with bilateral temporal bone involvement. The lesion caused destruction and remodelling in mastoid air cells. On the right side, cerebellar compression was obvious. The patient was operated on the symptomatic side and the lesion was totally rem...
Diffuse cerebral arteriovenous malformation (AVM) is a rare disorder of the brain and defined as diffuse infiltration of brain by complex vascular structures. It is usually associated with hereditary syndromes and presented with hemorrhage or seizure. We report a 20-year-old male patient who pres...
Spinal schwannomas are one of the most common intradural extramedullary spinal tumors. However, a string of bead-like intradural extramedullary schwannoma is highly uncommon. In the paper we present a case of a longsegment string of bead-like intradural extramedullary schwannoma of cauda equina ...
Non-traumatic multiple saccular aneurysms of the middle meningeal artery are extremely rare lesions. In our case the patient was a 51-year-old woman admitted with complaints of progressive headache. Magnetic resonance imaging showed a dilatation of the vein of galen malformation. Cerebral angiogr...
Trans-nasal sphenoid sinus foreign body is a rare condition. We report a case of trans-nasal gun bullet within the sphenoid sinus with breach of the floor of the sella turcica. A 42-year-old soldier presented a few weeks after a gun battle with a history of headache. The skull x-ray demonstrated ...
Aim: Intracranial hypotension may have variable clinical presentation. The imaging characteristics of intracranial hypotension are especially well depicted on magnetic resonance imaging studies. Although the clinical and radiological manifestations of spontaneous intracranial hypotension are incr...
Spontaneous spinal epidural hematoma (SSEH) is a rare condition requiring urgent diagnosis and treatment. Patients with SSEH typically present with acute onset of severe back pain and rapidly develop signs of compression of the spinal cord. The authors present a case with spontaneous resolution o...
Intradural extramedullary (IDEM) tuberculomas account for only 1% of all spinal tuberculomas. Concurrent IDEM tuberculoma and syringomyelia arising as a complication of tuberculous meningitis (TM) is extremely rare and only two cases have been reported to date. There is yet no report in the liter...
Cauda equina syndrome (CES) is a serious neurological condition and the most common cause is a central disc herniation. Migration of a bullet down the spinal canal is uncommon. In this report, the authors present an unusual case of cauda equina syndrome caused by a migrated bullet in dural sac. T...
Agenesis of internal carotid artery (ICA) is a rare anomaly. The contralateral dominant artery has a high incidence of aneurysms. A 50-year-old male patient had aneurysmal subarachnoid hemorrhage due to rupture of a paraclinoid aneurysm. He also had an anterior communicating artery (Acom) aneurysm...
Clival chordomas are frequently midline structures. Due to their critical location, invasive nature and aggressive recurrences, skull base chordomas are difficult to manage surgically. We present a case operated on with the pedicled transnasal and transfacial approach. The case presented with neur...
Injuries of the vertebral artery are rare and are usually seen after penetrating or blunt cervical trauma. Vertebral artery injuries (VAI) have been reported in 0.5% of blunt trauma cases. These injuries can lead to hemorrhage, thrombosis, arteriovenous fistula or traumatic pseudoaneurysm in the e...
Lumboperitoneal shunting is widely used for the surgical management of pseudotumor cerebri and other pathologies such as communicating hydrocephalus. Although it is a safe method, it could be associated with complications including subarachnoid hemorrhage, subdural and rarely intracerebral hematom...
Congenital hypoplasia of the posterior arch of the atlas (C1), a developmental failure of chondrogenesis, is a rare anomaly and may range from partial clefts to total agenesis of the posterior arch. Ossification of the posterior arch usually occurs between the 3rd and 5th years of life. The incide...
Ossifying fibroma of the vertebra is a very rare condition. We report a 16-year-old boy with ossifying fibroma of the third lumbar vertebra. Neurological and laboratory examinations demonstrated normal findings. Low-back pain, in the absence of radicular pain, was the presenting symptom. Plain rad...
We report a 10-year-old girl with an isolated traumatic intraventricular hemorrhage following a traffic accident, who had a good prognosis. Her neurological examination upon arrival was normal and she had no complaint other than headache and vomiting. Computed tomography on admission showed a hemo...
Lumbar spinal tumoral calcinosis and spinal epidural lipomatosis are rare conditions. We present a 70-year-old female patient with serology negative spondyloarthropathy who developed paresis due to tumoral calcinosis in the left facet joint between L5 and S1 levels and spinal epidural lipomatosis ...
Vertebral body hemangiomas are benign lesions and account for 4% of all spinal tumors. The most common histological type is cavernous hemangioma. These tumors generally locate in the vertebral body as a solitary lesion. Multiple lesions are seen in approximately 25-30% of vertebral hemangiomas. Mo...
The primary brain tumors associated with cerebral aneurysms are rare in neurosurgical practice. The present article constitutes an evaluation of the management of coexistent primary brain tumor and cerebral aneurysm. A retrospective study of three cases of primary brain tumor with cerebral aneurys...
Pilomyxoid astrocytoma (PMA) is a recently described neoplasm. PMA shares few features with pilocytic astrocytoma (PA), the most common central nervous system (CNS) tumor in the pediatric population, yet displays histological differences. Previous studies have shown that PMAs have more aggressive ...
Compression at the craniovertebral junction because of tumors is not a very common entity. The commonest tumors present here are neurofibroma and meningioma. Any vertebral tumour can be present at this location. Benign bony tumors are very uncommon at this location and amongst these enchondromas a...
Apoplexy in sellar metastasis is very rare with only a few case reports in literature. A case of apoplexy in sellar metastasis from follicular thyroid carcinoma is reported and the literature is briefly reviewed. The patient presented with sudden onset headache and bi-lateral loss of vision follow...
Perivascular spaces surround the small arteries and veins as they enter into the brain parenchyma from the subarachnoid spaces. Also called as Virchow-Robin spaces, these are prominent in the basal ganglia and high convexity white matter of the elderly. Occasionally VR spaces may get massively enl...
We present a case that had two separate facet joints on the same side causing an intervertebral instability. The embryological pathogenesis of the congenital existence of two separate facet joints on the same side of the vertebra is not conclusively known. A 68-year-old woman presented with lower ...
A 43-year-old male presented with 3-month history of low-grade fever and headache. Radiological investigations revealed unilateral hydrocephalus. Unilateral obstruction of the foramen of Monro due to chronic tubercular ependymal inflammation was suspected and endoscopic septostomy was planned. Tho...
The authors report the case of an adult female patient who developed a thoracic paraspinous desmoid tumor (aggressive fibromatosis) located just cranially to the incision scar of the previous surgery for resection of a spinal schwannoma. To the best of the authors' knowledge, this is the first rep...
Primary fourth ventricle meningiomas are extremely rare, and they are defined as meningiomas arising from the choroid plexus and lying strictly within the fourth ventricle. In this report we present a 61-year-old man with progressive worsening vertigo and gait disturbance, and new onset of diplopi...
Peroneal nerve entrapment is most commonly seen in the popliteal fossa. It is rarely caused by a ganglion. Intraneural ganglia, although uncommon and seldom cause serious complications, are well recognized and most commonly affect the common peroneal (lateral popliteal) nerve. Ganglionic cysts dev...
The anterior tarsal tunnel syndrome (ATTS) has first been described by Kopell and Thompson in 1963. The anterior tarsal tunnel is formed by the fascia lining the inferior extensor retinaculum and talus as well as the navicular bone. Many ATTS cases with various etiologies have been reported since ...
Recently, Iskandar et al described “Chiari Zero malformation” to characterize some kind of syringomyelia that exhibits classic Chiari-type symptoms with little to no herniation, but there is some dilemma about whether it is actually present. We presented a 38-year-old-man with a diagno...
The cubital tunnel syndrome is widely considered as the second most frequent compression neuropathy in the upper extremities although the existence of a compressive cause has not been determined conclusively. As far as we know, operational photography of compression of the ulnar nerve at the elbow...
Thyroid stimulating hormone (TSH) secreting pituitary adenomas are rare tumors manifested as hyperthyroidism with goiter in the presence of elevated TSH. We present a case with pituitary adenoma secreting both TSH and growth hormone (GH) with the prominent clinical findings of hyperthyroidism but ...
AIM: Cancers that metastasize to the cauda equina are uncommon. Only seventeen cases were reported. Those from pulmonary squamous cell carcinoma was never been published to our knowledge. MATERIAL and METHODS: A 79-year-old male patient presented with low back pain since 1 year and severe sacral p...
AIM: To observe the neurological complications arising from various tribal practices and their management. Penetrating head injuries comprise only a small number of total head injuries. A penetrating head injury by deliberate attempt to treat an ailment is almost unheard of. MATERIAL and METHODS: ...
Elevated fractures of the skull, which are rarely reported in the literature, are always compound, have maximal neurological deficits at presentation and have been reported only in adults. We report two cases of elevated skull fractures in the pediatric age group, one of which was a simple elevate...
Pneumothorax is a very rare complication of ventriculoperitoneal shunting in children. We report a case of an iatrogenic bilateral tension pneumothorax during the placement of a subdural-peritoneal shunting. After the placement of peritoneal catheter, oxygen saturation of the patient quickly decre...
The anterior iliac crest is the harvest site preferred by many surgeons because of the quantity and quality of bone obtainable and the simplicity of harvesting techniques. Avulsion fracture of the iliac crest following bone grafting is an extremely rare occurrence. We present a case report of avul...
Tuberculosis has been an important public health problem in both developing and develop nations. Tuberculosis of the central nervous system is rare. Tuberculosis meningitis and tuberculoma are the two most important manifestations of tuberculosis of the CNS. Intracranial tuberculomas may be solita...
Pseudoaneurysms of the superficial temporal artery are mostly traumatic in origin. Here, a case of a superficial temporal artery aneurysm that emerged following a recraniotomy is presented. A 59-year-old woman was admitted with subarachnoid hemorrhage. She underwent a pterional craniotomy and clip...
Guyon's canal syndrome is a compression neuropathy of the ulnar nerve entrapment at the wrist. Compression of the ulnar nerve at the wrist by a ganglion, lipomas, diseases of the ulnar artery, fractures of the hamate and trauma are common etiologcal factors. Unlike Guyon's canal syndrome, carpal t...
Medulloblastoma is the most common malignant tumor of childhood and usually arises from the cerebellar vermis. Several histological types of medulloblastoma have been described. Myogenic and melanotic differentiated medulloblastoma are seldom seen. We present a case diagnosed as myogenic medullobl...
Syringomyelia is condition in which a cyst or cavity forms inside the spinal cavity. Its management always remains a difficult. A variety of surgical techniques have been used in management of syringomyelia. Syringosubarachnoid shunt remains an effective method in management of syringomyelia. Shun...
A case of an extruded cervical intervertebral disc at C7-D1 level with intradiscal hematoma in a 68-year-old male patient is presented. MR imaging showed a posterolateral extradural hemorrhagic lesion at C7-D1 level. It was suggestive of an epidural hematoma or a bleed within a neoplasm. A posteri...
Fungal infections of the central nervous system (CNS) are uncommon and occur mainly in immunocompromised patients. We describe a case of central nervous system aspergilloma without any evidence of systemic or paranasal foci in a diabetic but otherwise immunocompetent 71-year-old female treated suc...
Calvarial cavernous hemangiomas (CHs) comprise 0.2% of benign neoplasms of the skull and frequently occur in the second and fourth decades. Their occurrence in infancy is extremely rare and they can initially be misdiagnosed as cephal hematoma or caput succadeneum that can occur due to the birth t...
The fifth lumbar vertebra has massive transverse processes that are continuous with the pedicle and encroach the body of the vertebra. These processes are mainly meant for the attachment of the iliolumbar ligament. With increasing age, the iliolumbar ligament can undergo secondary degenerative cha...
BACKGROUND: Lhermitte-Duclos disease is typified by a hamartomatous lesion of the cerebellum. It is usually seen in females. The usual presentation is of raised intracranial pressure along with cerebellar signs. CASE REPORT: We report an 18-year-old female patient who presented to us with history ...
Basically Chiari type III malformation is a combination of encephalocele with of brain stem and cerebellar abnormality. Although Klippel-Feil syndrome may be associated with other congenital anomalies, this syndrome is mainly associated with varying degrees of cervical vertebral fusion anomalies. ...
AIM: Primary sacral lymphoma is rare. It usually presents in elderly males as low back ache and radiculopathy. Case report: We hereby report a case of primary sacral lymphoma in a 53-year-old male who presented with low back pain. Imaging showed a sacral lesion which on histopathology proved to be...
Intaosseous meningiomas (IM) are the one of the less frequent benign tumors of the skull. The etiology of IM has not been cleared yet. The frontoparietal and orbital regions are the most common locations for IM. The average age for IM diagnosis is 50.5. A 16-year-old girl with a right frontopariet...
Pneumorrhachis is defined as the presence of air in the epidural space or subarachnoid space. The air may migrate along fascial planes from the posterior mediastinum, through the neural foramina, and into the epidural space. Pneumorrhachis is rare, and even more so in the paediatric population. Pn...
Subtentorial subdural empyema is a rare form of intracranial suppuration. We present two cases treated at our department within the last 11 years. The common source was an ear infection. Both patients presented with headache, fever, vomiting and stiff neck. Only one patient had disturbed conscious...
AIM: Cerebral arteriovenous malformations (AVMs) are congenital lesions which rarely recur after complete microsurgical excision. MATERIAL and METHODS: This case report presents a 35-year-old woman who had been referred with a hemorrhagic AVM five years ago. This patient has recently undergone micr...
Grisel's syndrome designates subluxation of atlanto-axial joint unrelated to trauma or bone disease. Atlanto-axial subluxation is seen after the upper neck inflammatory processes of head and neck region. Moreover, this rare clinical entity has been observed after various otolaryngological surgical...
The involvement of spinal column in cyst hydatid disease is rare and hard to treat. The gold standard treatment is total removal of the cysts without rupture. However, recurrence after surgery is almost inevitable and reoperations carries technical difficulties and higher morbidity. We present a 6...
Gliomas may rarely arise in the leptomeninges without any evidence of intraaxial involvement. A case of primary diffuse leptomeningeal gliomatosis (PDLG) histologically diagnosed as oligoastrocytoma is presented. A 50-year-old woman presented with nausea, vomiting and headache. Magnetic resonance ...
AIM: Plasma cell tumours include solitary plasmocytoma, multiple plasmocytoma and multiple myeloma. Herein we report a case of plasmocytoma of the skull. CASE HISTORY: A 49 year-old-man suffered from amnesia, irritability and a rubbery swelling which was gradually increased approximately to 4-5 c...
A 74-year-old woman, taking anticoagulant therapy for chronic heart failure, presented to our emergency room with left dorsiflexion weakness 8 hours from after multitrauma. A detailed neurological examination revealed only 0/5 strength in the left foot dorsiflexion without any upper motor neuron s...
Cerebellar haemorrhage after supratentorial craniotomy is a rare complication Because of its significant morbidity and mortality rates, being aware of this complication is important for early diagnosis. In a 30-year-old male with multiple intracranial cavernomas, remote cerebellar haemorrhage (RCH...
Aneurysmal bone cyst are benign rapidly expanding bone destructive lesions of any bone. They are common in the metaphysis of long bones but 10-30% involve the spine. Cervical region involvement is uncommon. We report a case of aneurysmal bone cyst of clivus C1 and C2 with minimum symptoms. Involve...
AIM: Neurothekeomas are benign tumors of presumed neural sheath origin. They are primarily found in superficial soft tissues, located in the upper portion of the body. Here, we report a case of intracranial neurothekeoma. RESULTS: A 37-year-old female presented at our clinic with sudden-onset left...
Angiosarcoma is a rare tumor of bone that uncommonly involves the skull. Primary neoplasms of the skull represent 2.6% of primary neoplasms of bone. We wish to report a case of angiosarcoma of he skull in an 18-year-old pregnant woman who presented with a rapidly growing left frontotemporal mass. ...
Behçet's disease is a multisystem relapsing inflammatory disorder of unknown cause. Neurological involvement is one of the most serious causes of long-term morbidity and mortality in Behçet's disease. Cerebral abscess is very rare in literature. A 45-yr-old man with Behçet's disease manifesting fo...
Chronic subdural hematoma is a very rarely observed complication after endoscopic third ventriculostomy (ETV). A 21-year-old male patient was admitted to our clinic with complaining of headache, weakness and tremor. The fundoscopic examination revealed slightly indistinct border of the papilla and...
We report herein a case of lower clival chondroid chordoma, focusing on the surgical procedure of endoscopic endonasal surgery. A 36-yearold woman presented with progressive headache, right shoulder pain, and right hypoglossal nerve palsy. Computed tomography (CT) and magnetic resonance (MR) imagi...
Bone formation in pituitary adenoma is an extremely rare finding. Only five previous cases have been published. This is the sixth case report of an ossifying pituitary adenoma and the first case report of a pituitary adenoma with bone formation coexisting with WHO grade II astrocytoma. MRI imaging...
Giant cerebral cavernous malformations (GCM) are rare vascular anomalies. They occur predominantly as solitary lesions in the supratentorial compartment. They are usually not associated with any other vascular malformations. Clinical Presentation GCM are common in the second decade, affecting fema...
Chemical meningitis is a rare phenomenon due to rupture of a craniopharyngioma cyst; it develops because of presence of cholesterol crystals in cyst fluid secreted by the squamous epithelium lining of the cyst. Spontaneous rupture of the cyst may present with or without meningitis, depending upon ...
Programmable valve shunts allows selection of opening pressure of shunt valve. In the presented article, a unique complication pertaining to programmable shunts has been discussed. A 5-year-old boy who had tectal plate low grade glioma with obstructive hydrocephalus was managed with Codman program...
Traumatic pseudoaneurysm of the middle meningeal artery is rare and is associated with high mortality. Skull fracture is usually an associated feature of this entity. An elderly male was brought to our hospital in a stage of coma. The details of ictus were not known. The Glasgow coma scale score w...
One type of congenital intrasphenoidal meningoencephalocele is remnant of lateral craniopharyngeal (Sternberg's) canal. We present a case of a 23-year girl with 10-month history of right side CSF rhinorrhea. CT scan, MRI revealed congenital meningoencephalocele and CSF leak from middle fossa to ri...
The single main cause of death from infectious diseases worldwide is tuberculosis, which is more prevalent in developing countries. Tuberculous meningitis (TBM) is a severe form of TB in which morbidity and mortality depend upon the stage of presentation. Intracranial brain parenchymal tuberculoma...
Intramedullary tumors affecting the entire cord from the cervicomedullary junction to the conus are termed “holocord tumors”. Ependymomas are the most frequent intramedullary tumor in adults. Holocord ependymoma is an exceedingly rare condition. An extensive review of the literature re...
Malignant peripheral nerve sheath tumours are uncommon aggressive soft tissue sarcomas that originate from peripheral nerves or cells associated with the nerve sheath. Scalp malignant peripheral nerve sheath tumours are extremely rare and the role of multimodality management is unclear. We report ...
Epidural hematomas which are located at the vertex are rarely seen and form a small percentage of total epidural hematomas. Tearing in the superior sagittal sinus is the usual cause of an epidural hematoma located in the vertex. The clinical features of this entity are non-specific; hence, localiz...
This article aims to describe an extraordinary complication of a ventriculoperitoneal shunt system that formed a knot spontaneously and lead to a shunt malfunction. A 3-year-old male patient was operated due to posttraumatic hydrocephalus. After an uneventful follow-up period of 34 months, he pres...
We report the safety and efficacy of bilateral foraminoplasty of Monro in a patient with partial occlusion of right Monro and complete occlusion of the left one. A 38-year-old man who underwent a ventriculoperitoneal shunt three years ago, and shunt revision surgery twice, presented with hydroceph...
Septo-optic dysplasia (SOD) is an extremely rare congenital anomaly, characterized with optic nerve hypoplasia and absence of septum pellucidum and/or pituitary dysfunction. In addition to classical findings of SOD, we report for the first time an 11-year-old boy, with encephalocele extending to t...
We report a rare case of simultaneous cranial subarachnoid and spinal subdural hematoma (SDH) in a 42–year-old man who was on Warfarin therapy after cardiac bypass surgery. Computed tomography at presentation revealed a cranial subarachnoid hemorrhage, and spinal Magnetic Resonance Imaging (...
Paraganglioma affecting the cauda equina region is very rare and can be misinterpreted as an ependymoma which is more common at this site. A 38-year-old woman with a paraganglioma in the cauda equina is presented. MRI revealed a well-circumscribed, intradural, extramedullary tumor nodule with the ...
A 47-year-old female patient who experienced urinary urgency after having stretching exercises of her legs is presented. Stretching of the legs are thought to be responsible for conus medullaris tethering which in turn causes urinary complaints. What is interesting in this case is that her complai...
Teratomas are rare congenital tumors. Teratomas frequently occur in adult ovaries, but can be located primarily in the sacrococcygeal zone and intracranial compartment in newborns. Teratomas are rare in the head and neck region. Teratomas arise following a sequence of cells derived from more than ...
Chronic abdominal pain without a structural or metabolic gastroenterological etiology can be extremely challenging to diagnose. Patients presenting with an associated radicular pattern of pain may alert the clinician to a possible structural neurological cause of the symptoms. We present the case ...
Intracranial hematoma rarely presents between two dural layers of pachimeninges. Here, we present a case of an interdural hematoma with similar appearance to an epidural hematoma. A 51-year-old man presented with a left temporal contusion following a motor vehicle accident. After craniotomy and co...
Agenesis of internal carotid artery (ICA) is rare. Association of agenesis with abnormal arterial communication between the cavernous segment of the carotid arteries is extremely rare. We present a case of a middle-aged woman who presented with sudden onset severe holocranial headache. She was inv...
We describe a rare case of cerebral abscess in an immunocompetent 67-year-old male with Gemella morbillorum as the causative agent. Gemella morbillorum is an aerobic gram positive coccus and is deemed to be a normal inhabitant of the oral cavity. The aim of this report is to introduce Gemella morb...
Glioblastoma Multiforme (GBM) presents a major challenge for a neurosurgeon as the most common primary malignant tumour of the central nervous system. The median life span after the diagnosis still remains between 6 months to 1 year even after gross total excision of the tumour. However, few patie...
Subarachnoid haemorrhage (SAH) associated with intra-axial tumours is extremely uncommon and is usually seen in association with intratumoural bleed. Tumours located near the ventricle or subarachnoid spaces have a higher propensity for SAH compared to intraparenchymal lesions. Low-grade tumours r...
Although osteochondroma is the most common benign bone tumor, the lumbar spine is anuncommon localization for solitary osteochondroma. Solitary lumbar osteochondromas rarely affect the neurological structures, because most of the lesions grow out of the spinal canal. We report a 48-year-old patien...
Osteoma is a benign, slowly growing tumor that mainly occurs in the bones and cavities of the middle third of the face, representing the most frequent benign tumor of the paranasal sinuses (3). It rarely originates primarily from the orbit. Most of these lesions develop in the fourth to fifth deca...
Transorbital intracranial injuries due to a wooden foreign body traversing superior orbital fissure is an extremely rare condition. A 9-year-old boy was struck by a tree branch in the left eye while playing in the garden two months ago. On physical examination, the patient had only a hypertrophic ...
Echinococcus multilocularis (EM) is caused by the larval stage of the tapeworm. The main endemic regions for human alveolar echinococcosis are Central Europe, Russia, Turkey, Japan, China, Eastern France, North America. EM is an endemic disease in Turkey and especially common in the eastern Anatol...
Epidermoid cysts are benign tumors originating from ectoderm remnants. Most epidermoid cyst cases are intracranial. Spinal epidermoid cysts are uncommon and most of the reported cases are in the thoracic and lumbar spine. Occurrence of intramedullary epidermoid cysts in the cervical spine is extre...
The authors describe the clinical and pathological features of a solitary fibrous tumor of the tentorium, a rare location for the tumor in the CNS. A 52-year-old lady presented to the neurosurgical services with headache of four months and vertigo of one and a half months duration. On examination,...
The diagnosis of pseudotumor cerebri is based on the triad of: (1) papilloedema, (2) elevated intracranial pressure with a normal cerebrospinal constituency and (3) normal central nervous system imaging studies. However, the diagnosis of pseudotumor cerebri is not always straightforward. We report...
Oligodendrogliomas are the tumors of normal glial cells of brain called oligodendrocytes. They represent a small proportion of childhood brain tumors and are infrequently encountered in the posterior fossa. CT scan and MRI are very helpful for the preoperative management of oligodendrogliomas. How...
Multiple spinal extradural arachnoid cysts (SEACs) are relatively rare lesions, which may cause symptoms due to spinal cord compression. Radical resection of multiple SEACs during one-stage surgery is the primary treatment for the rare lesion, because of its effective and safe operation. Here, we ...
Primary melanomas at the cerebellopontine (CP) angle are extremely rare and considered a diagnostic dilemma. With only 16 prior cases reported so far, there is not enough material in world literature. We report a 29-year-old male who presented with vertigo, headache and features of lower cranial n...
We describe herein a patient with primary intracerebral malignant fibrous histiocytoma (MFH) to demonstrate this very rare central nervous system tumor. A 42-year-old male was admitted to our institute with the complaints of headache and speech impairment. Magnetic resonance imaging (MRI) revealed...
Spinal neurenteric (NE) cysts are rare congenital anomalies that may occur either alone or in the context of a complex malformative disorder. They are usually intradural-extramedullary lesions. Intramedullary NE cysts not associated with other congenital anomalies are very rare and only a few case...
Isolated dissection of the basilar artery (BA) is rare and still a big challenge regarding treatment. The suitable therapeutic strategies for dissection of the BA remain controversial. We report the case of a young patient with a giant unruptured dissection of the BA successfully treated by endova...
We report the case of a 63-year-old female with a long history of severe Parkinson's disease (PD) and subsequent onset of debilitating camptocormia who underwent successful bilateral subthalamic nucleus deep brain stimulation surgery (STN DBS). The literature and previous reports are reviewed. The...
The differential diagnosis of multiple sclerosis is extensive and it can be challenging to diagnose initially in the absence of pathognomonic clinical features. Furthermore, these patients can also develop other diseases during their course of treatment, which usually lasts for many years. Some co...
Intramedullary spinal cord metastasis (ISCM) is a rarely seen complication of cancer. We report a case of ISCM from gastric cancer. A 42-yearold male presented with a rare intramedullary spinal cord metastasis from gastric carcinoma manifesting as rapidly worsening motor and sphincter disturbances...
We report a 16-year-old girl who had stunted growth and primary amenorrhea presenting with headache and vomiting. MRI of brain showed posterior fossa dermoid cyst with hydrocephalus and empty sella. Growth hormone (GH), Leutinizing hormone (LH) and Follicular stimulating hormone (FSH) were grossly...
AIM: Fat graft migration following spinal cord surgery is an uncommon problem. Only few cases of fat graft migration causing cauda equine syndrome, recurrent sciatica, and root compression following lumbar spine surgery have been reported. We report a case of fat graft migration causing symptomati...
Nummular headache (NH) is defined as a focal head pain that is exclusively felt in a small area, which is typically 1-6 cm in diameter. Neurological examinations are normal in all patients, but this report describes a new variant. A patient was identified who presented with focal head pain that wa...
The coexistence of spinal teratoma of the conus medullaris and arteriovenous malformation (AVM) is exceptional, which has not been reported previously in the literature. The precise mechanism of the coexistence of these conditions is not known, however, the dysembryonic origin of spinal cord terat...
The “Adeloye-Odeku disease” or congenital dermoid cysts over the anterior fontanelle, is a rare congenital disorder of children initially described in Nigeria. It has been rarely reported in the Indian population (3 cases in 2 reports). These rare lesions are operated on by neurosurgeon...
Whiplash Associated Disorders (WAD) has been reported as an adult phenomenon. Whiplash injury has classically been described as a cervical soft tissue hyperextension- flexion injury after a trauma such as a rear end impact car crash, contact sport injuries, blows to the head from a falling object ...
Placement of ventriculoperitoneal(VP) shunt is a worldwide accepted procedure for treatment of hydrocephalus. This procedure have various intra-abdominal complications, of which pseudocyst formation is a rare one. Common presentations of this complication are abdominal mass, abdominal pain, intest...
The Currarino triad, also known as the “Currarino Syndrome”, is a rare complex of congenital caudal anomalies including three main features; a sacral bony deformity, anorectal malformations, and a presacral mass. We present an extremely uncommon case of Currarino syndrome in adulthood ...
AIM: Fibrous dysplasia is a benign disease in which medullary bone is replaced by fibro-osseous tissue, and causes distortion and overgrowth of the involved bone and represents about 3% of all bone tumors. There is variability in the manifestation of Fibrous Dysplasia lesions with imaging techniqu...
Intradural foreign bodies after penetrating injuries are seen very rarely. Limited number of cases of glass fragments in the spinal canal were reported previously. Migration of foreign bodies and delayed onset of neurological symptoms due to foreign bodies were also reported. In this report a 33-y...
Tenosynovial giant cell tumor (TGT) rarely arises from the posterior coloumn of the cervical spine. Most lesions of TGT involve the tendon sheath and joint lining of the small joints of the fingers and hands, and consecutively the knee, ankles and feet, and hips. Rate of extra-articular presentati...
Non-missile intracranial injuries caused by foreign bodies are quite uncommon in civilian practice. Nails, knives, screwdrivers and sewing needles are the most commonly reported agents. The authors report a unique case of an adult male patient who suffered a penetrating craniocerebral injury cause...
A 37-year-old patient is reported with intracranial sewing needles, which were located in the right frontal lobe. Both clinical and radiological findings suggested that these needles must have been introduced in infancy before the closure of anterior fontanelle during an unsuccessful homicide. Usu...
Subdural hematoma (SDH) has been reported in 0.5–4% of all intracranial metastatic tumors. Chronic SDH has been reported in intracranial metastases from both solid and haematological malignancies. Here we report recurrent SDH in a patient with chronic myeloid leukaemia (CML) following dural ...
A 10-year old boy who had undergone a ventriculoperitoneal (V/P) shunt because of hydrocephalus at 10 days of age was doing well until 20 days ago, when he began to experience headache and seizures. CT scan reveraled dilated lateral ventricles and calcification at the shunt site. X-rays showed an ...
Colloid cysts are rare benign tumors of the third ventricle with diverse clinical presentation, which vary from incidentally found cysts to acute death. An uncommon hemorrhage in these cysts is a life threatening complication which can cause obstructive hydrocephalus with acute deterioration of th...
AIM: Pituitary apoplexy is an infrequent but potentially devastating complication in patients with pituitary adenomas. Previous studies have cited an association between MR visualized sphenoid sinus mucosal thickening and apoplexy. However, uncertainties still remain on the significance and tempor...
Primary melanocytic tumors of the central nervous system are rare. In this article the authors describe a case of C1C2 intradural extramedullary melanocytoma in a 43-year-old patient who presented with neck pain. C1-3 laminectomy was performed followed by excision of the lesion and an adjoining sa...
Concomitant tubercular and fungal cerebellar abscess is rare and we report the first concomitant recurrent multi-lobulated tubercular and fungal cerebellar abscess in an immunocompromised girl with Histiocytosis-X. She presented with cerebellar abscess history diagnosed during the ongoing treatmen...
The differential diagnosis of multiple ring-enhancing intraaxial lesions includes neoplastic, infectious, inflammatory, demyelinating and vascular lesions. We report a case of a 41-year-old man who presented with a brief history of left lower extremity weakness and sensory loss. Magnetic resonance...
Ewing's / peripheral primitive neuroectodermal tumor (pPNET) of the cavernous sinus are extremely uncommon. We present clinical, radiological, pathological findings of Ewing's / pPNET involving the cavernous sinus in an eleven-month-old infant presenting with proptosis and 6th nerve palsy. MRI Con...
Deep brain stimulation for Parkinson's disease is a well-established therapeutic intervention for refractory disease. The main nuclear targets are the subthalamic nucleus and the globus pallidus internus. Periodic limb movements are often an associated condition in patients with Parkinson's diseas...
Spinal tuberculosis accounts for up to 50% of all cases with musculoskeletal tuberculosis. In patients needing surgical treatment, the use of anterior instrumentation offers the theoretical advantage of more complete debridement and decompression, safer mobilization and reliable deformity correcti...
Nerve sheath myxoma (neurothekeoma) are rare benign nerve sheath tumors, usually arising in the skin of the head and neck region and upper extremities in young females. To the best of author's knowledge only two cases of intracranial neurothekeoma have been published in the English literature. The...
A rare syndrome, Dyke-Davidoff-Masson Syndrome (DDMS), with a diagnostic conundrum, and the way it was solved is presented. A 13-yearold boy presented with recurrent seizures for the past 10 years. He had been treated with anticonvulsant medication which was satisfactory at first but later the sei...
Primary writing tremor is a task associated tremor which occurs during and interferes with handwriting. Considered in most cases to be a nonprogressive disorder, a number of patients are significantly debilitated by the disease. The pathophysiology of the disorder is not fully understood, but felt...
A 5-year-old child had a medical history of epilepsy and a newly presented mental retardation with a life-threatening dystonic storm. Neuroimagings showed bilateral calcification of the pallidum. Several treatment modalities were performed, but the symptoms showed no significant improvement. The p...
A 65-year-old woman presented with left facial involuntary movement and facial palsy for eight years. Brain magnetic resonance image (MRI) and magnetic resonance angiography (MRA) revealed multiple vascular compression of facial nerve root exit zone (REZ). Standard retromastoid suboccipital cranie...
Schwannoma is a benign nerve sheath tumor composed of Schwann cells. A solitary schwannoma in the thorax is not rare, but a patient with Neurofibromatosis type 2 (NF2) and multiple thoracic schwannomas is extremely rare. We report the case of a 27-year-old woman with NF2 and two large schwannomas ...
Digital subtraction angiography (DSA) is the best method of evaluating carotid cavernous fistulas (CCF). DSA, however, has the disadvantage of being an invasive procedure. Computerized tomography (CT) angiography which is noninvasive, have been shown to provide more information about the size and ...
Isolated Blastomyces dermatitidis infection of the central nervous system is an uncommonly encountered entity. If left untreated it can be fatal; thus accurate diagnosis in a timely manner is critical. A 37-year-old white male presented with a severe headache. An MRI scan revealed a rightsided enh...
Jarcho Levin syndrome is a rare genetic disorder characterized by multipl vertebral and costal anomalies at birth. Jarcho Levin syndrome includes two phenotypic groups: spondylothoracic dysostosis and spondylocostal dysostosis. The prognosis of spondylothoracic dysostosis has worse than spondyloco...
Brown tumor is a bone lesion secondary to hyperparathyroidism of various etiologies. Skeletal involvement in primary hyperparathyroidism secondary to parathyroid adenoma is very uncommon and brown tumor has become extremely a rare clinical entity. Hyperparathyroidism is usually associated with hig...
Primitive neuroectodermal tumor (PNET) is presumably of neural crest origin, and cases of supratentorial PNET in adult are extremely rare. We reported a case of PNET presenting as a dumbbell-shaped tumor at the middle cranial fossa of skull base mimicking trigeminal schwannoma both clinically and ...
AIM: Spinal angiolipoma is a benign uncommon neoplasm composed of mature lipocytes admixed with abnormal blood vessels, and accounts for only 0.14-1.2% of all spinal tumors. MATERIAL and METHODS: Retrospective data analysis. RESULTS: We report two cases of a 64-year-old woman and a 65-year-old ma...
We describe a 62-year-old woman suffering from visual hallucination due to focal status epilepticus investigated by means of Magnetic Resonance Imaging (MRI), Magnetic Resonance Angiography (MRA), Electroencephalography (EEG), and 99m Technetium ethylcysteinate dimer Single Photon Emission Compute...
We describe a patient presented with sequential events of hemifacial spasm, cerebral infarction and fatal subarachnoid hemorrhage. All of them are seemingly separate entities. Radiological examination revealed that the cause was vertebrobasilar dolichoectasia (VBD) coexisting with a giant saccular...
Various complications following ventriculoperitoneal (VP) shunting have been reported but transoral protrusion of peritoneal catheter is a very rare situation. This case is the first adult with a transoral VP shunt protrusion in available literature. A 47-year-old female with pseudotumor cerebri a...
Spontaneous vertebral arteriovenous fistulae (AVF) associated with neurofibromatosis Type 1 (NF-1) is a rare occurrence in the previous reports. We presented two female NF-1 patients with a diagnosis of cervical vertebral AVF treated with endovascular approach. The fistula in the first case was su...
Remote intracranial hemorrhages after craniotomy or craniectomy may rarely develop. As the sparse literature on this phenomenon has focused on contralateral intraparenchymal and epidural clots, only seven cases of postoperative contralateral acute subdural hematomas have been reported in the liter...
Iatrogenic vascular injury rarely occurs during lumbar disc surgery and can be fatal if it is not recognized instantly. In this paper we aim to introduce three iatrogenic vascular injuries that occurred during the lumbar disc surgery. The first case was consulted because of the sudden hypotension ...
Intradural disc herniation is a rare entity that occurs most commonly in the lumbar spine particularly at L4-L5 region. Most often it is diagnosed intraoperatively in a case of simple intervertebral disc herniation. Contrast enhanced MRI is mandatory for pre operative diagnosis. We describe a case...
Gliosarcomas (GS) are high grade, rare tumours. Radiologically they are seen as a surfacing lesion, often having a thick dural attachment located within the parenchyma of the brain. We report a very unusual case of an intraventricular non-parenchyhmal gliosarcoma in a 60-yearold female. Magnetic r...
Early closure of cranial sutures results in various types of cranial vault deformities, named craniosynostosis. Although mostly associated with syndromic cases, bony orbit deformities such as exorbitism can be seen with various types of craniosynostosis. This condition can be associated with papil...
With modern technology, intraoperative computed tomography scans are being used in neurosurgical operative rooms. A case of severe head trauma is reported to underline how intraoperative computed tomography can improve the treatment of traumatic lesions, without changing the operative setup, with ...
Aneurysms protruding into sellae may mimic pituitary tumors by compressing adjacent cranial nerves. Carotid-Cavernous aneurysms are rarely associated with mortality, and surgical intervention is recommended especially for neuro-ophthalmologic progression. In this report we presented a 51-year-old ...
Pharyngeal and esophageal perforations are rare during cervical spine surgery but can cause significant morbidity. Pharyngeal or eosephageal perforations can occur by several mechanisms and the management of pharyngeal or eosephageal perforation’s treatment may become difficult. We report a ...
We present a rare cause of cervical myelopathy produced by an engorged suboccipital epidural venous plexus due to chronic cerebrospinal fluid (CSF) overdrainage. A 17-year-old boy with obstructive hydrocephalus due to a retrocerebellar cyst and secondary implantation of a ventricloperitoneal shunt...
Aneurysmal bone cyst is a benign tumor-like bony lesion with a propensity to develop in the pediatric population. It generally involves one vertebral level when localized to the spine. The degree of resection correlates highly with fewer recurrences. En bloc spondylectomy is the procedure of choic...
AIM: Conventional ventricular catheters have proven to be ineffective in the drainage of the cerebrospinal fluid in the long run in terms of infection rates. Consequently, the development and clinical evaluation of new catheters is urgently needed. MATERIAL and METHODS: We implanted a ventricular ...
Hydatid disease is a life-threatening parasitic infestation caused by Echinococcus granulosus. Infection with E. granulosus typically results in the formation of hydatid cysts in liver, lungs, kidney and spleen. Majority of the intracranial cysts are secondary and solitary. Multiple primary cerebr...
Rosai-Dorfman disease (RDD) is a rare but well-recognized idiopathic histioproliferative disease affecting the systemic lymph nodes. It is characterized by an unusual proliferation of histiocytic cells. Intracranial localization is a rare manifestation of RDD. The clinical and radiological differe...
Aim: Compound elevated fracture of the skull is an unusual variety of fracture of the cranial vault that has been rarely described in the currently available literature. The authors describe three such patients with post-traumatic compound elevated skull fracture. The pertinent literature is revie...
Vertebral hemangiomas are the most common tumours of the vertebral column. Generally, these tumours are asymptomatic but some patients complain of back pain and develop neurologic symptoms due to extraosseous extension. Vertebral hemangiomas can extend extradurally causing neurological impairment ...
Multiple primitive intracranial tumors with different histological characteristics are uncommon. Although coexistence of a medulloblastoma with glial tumors has been reported in children, medulloblastoma is rarely found in adults, especially those older than 40 years of age. We present an extremel...
Gangliocytoma of the pituitary gland is a rare lesion that often occurs in combination with pituitary adenomas and the exact origin is the subject of discussion. We report a rare case of an intrasellar mass of combined gangliocytoma/ pituitary adenoma coexistent with Rathke’s cleft cyst. A 5...
Pseudoaneurysms of superficial temporal artery are very rare and commonly occur as a result of blunt trauma. There are several methods for the diagnosis, but the diagnosis can be accurately made only from a history and physical examination. A 27-year-old man presented with a painless pulsatile mas...
Primary spinal melanoma (PSM) is rare and usually occurs in the cervical and thoracic regions. Here, we present a case of multiple spinal cord melanoma located at the level of cervical and upper thoracic spine in a 24-year-old male. The patient underwent a T6T7 thoracic laminectomy and gross-tota...
Melanocytomas are rare melanocytic tumors of the central nervous system and its presence at the foramen magnum is extremely rare. We report a case of a 55-year-old male presenting with progressive quadriparesis over one year. Imaging showed a well-defined intradural extramedullary lobulated mass a...
Brain parenchyma schwannoma is a rare intracranial tumor, and especially rare in cerebellar hemisphere. In this report, a case of cerebellar schwannoma in a 52-year-old woman, was studied by computed tomography (CT), magnetic resonance image (MRI) and PET-CT. This tumor was totally removed by surg...
In moyamoya disease (MMD), subsequent aneurysm in the proximal part of the posterior communicating artery (PcomA) is extremely rare. We report the case of a middle-aged female patient with MMD, who presented with a ruptured wide-necked aneurysm at the proximal part of the developed PcomA that conv...
Aim: Chordoma is a rare, slow-growing primary malignant tumor of the axial skeleton, arising from the embryonic cells of primitive notochord. Chordomas may arise at different sites of the vertebral column simultaneously or more probably they may metastasise along the neural axis insidiously. Recur...
Ganglioglioma is one of the rare mixed neuronal glial tumors of the central nerve system. It is responsible for 0.4 – 2% of the intracranial tumors observed in infants and young matures. Its most common localization is the supratentorial region. Typically, the first symptom is epilepsy. Due ...
Ventriculostomy or external ventricular drain (EVD) placement by free-hand technique has a high malplacement rate. It is a blind procedure that often requires multiple attempts and revisions. To date, no neurological complication due to EVD malplacement has been reported in the literature. In this...
Tension pneumocephalus is a rare and life threatening complication of intracranial surgical procedures, and requires immediate recognition and surgical intervention. Tension pneumocephalus following ventriculoperitoneal shunt surgery is extremely rare and commonly seen as a delayed complication. T...
Hemorrhagic complications of acute leukemia are well described and are a common cause of mortality in these patients. However, to our knowledge, fatal intracerebral hemorrhage (ICH) as an initial presentation of acute lymphocytic leukemia (ALL) has only been reported once. We report a case of prev...
Glioblastoma is very rare in the pineal region. We report a case of glioblastoma in this region. This is the 18th case of primary glioblastoma in the pineal region and the second case that survived over two years according the literature. A 60-year-old man admitted with headache and ataxia that co...
Eosinophilic granuloma is a rare disease belonging to the Langerhans’ cell histiocytosis group. It accounts for only 1% of all tumor-like lesions of bone. A 6-year-old girl presented with proptosis, and a mass and pain in her right eye. Cranial computerized tomography and magnetic resonance ...
We report a 41-year-old man who presented with low back pain, lower extremity paresthesia, urinary retention and constipation. Magnetic resonance imaging showed a vascular intradural-extramedullary lesion at the second lumbar vertebral level. His medical history revealed that he had undergone surg...
Surgical microscope-integrated intraoperative angiography with intra-venous injection of indocyanine green (ICG) has been widely used during bypass or aneurysm surgery. Instead of intra-venous injection of ICG, we describe a case of intraoperative video angiography with intra-arterial injection of...
Vertebral hemangiomas are benign vascular lesions of the vertebral column; only 0.9-1.2% of all vertebral hemangiomas cause spinal cord compression. We report a 34-year-old female who was admitted to the neurosurgery clinic with a history of back pain, poor quality of life and easy fatigability fo...
Carpal tunnel syndrome is the most common upper extremity neuropathy in the wrist that may be associated with anatomic variations of median nerve. Trifurcation of the median nerve has been very rarely reported in the literature. We report coexistence of bilateral median nerve variation in the wris...
Skull bone metastasis from the gastric cancer is a rare. We reported a 52-year-old male proven to have stomach cancer and who underwent subtotal gastrectomy 5 months previously. Within the past 2 weeks, he experienced headache and dizziness followed by weakness of the left lower limb. A diagnosis ...
Acquired spinal epidermoid cysts are extremely rare. There are only a few reports on the formation of epidermoid cysts after lumbar puncture or spinal trauma. In this report, we present a patient who was diagnosed with epidermoid cyst after operation for spinal fracture. This 43-yearold female suf...
Orthopedic wires and pins are regularly used for the treatment of dislocations and bone fractures. Migration of these metallic fixation devices into the spinal canal is an uncommon complication. We present a 35-year-old man who underwent thoracic spinal canal migration of a Kirschner wire. The pat...
In a case of 23-year-old female with Rathke’s cleft cyst (RCC), unusual changes with size and morphology on computed tomography (CT) and magnetic resonance images (MRI) were noted in a short period of 3 weeks after spontaneous rupture. The CT noted that the intracystic isodensity was changed...
Primary intraosseous arteriovenous malformations (AVM) are not infrequently encountered. We report a case of intraosseous arteriovenous malformation arising in the left temporal bone. A 51-year-old male patient presented with loss of conscious. Computerized tomography displayed hematoma measuring ...
Chronic subdural hematomas and cephalhematomas are known to become calcified in some patients. We present interesting cases of cephalhematoma in a child and calcified chronic subdural hematoma in an elderly lady with both getting calcified. The first patient was a 7 months male with calcified ceph...
Blue rubber bleb naevus syndrome is an uncommon disorder whereby patients possess cutaneous vascular malformations. Cranial malformations have been rarely reported in the literature. We report the first ever case of a patient with blue rubber bleb naevus syndrome (BRBNS), who was found to have a s...
Ventriculoperitoneal (VP) shunt proximal tip disconnection is rarely seen as a shunt complication. Shunt dysfunction and hydrocephaly can develop due to this disconnection. Presented here is a case of a disconnection of the ventricular catheter from the shunt valve, which passed between both later...
Glioblastoma represents extreme anaplasia in astrocytic tumors. In spite of this aggressiveness, extracranial metastasis of glioblastoma is very rare and has been documented in only a few patients in the literature. In this article, a 30-year-old woman with secondary glioblastoma associated with e...
Primary spinal glioblastoma multiforme (spinal GBM) is not a very common entity. This paper presents an outline of this rare neoplasm, its clinical presentation, course, management and outcome and reports a 3-case series of spinal GBM. In this 3-case series with spinal GBM, one of the patients was...
Brain abscesses are a rare but potentially lethal neurological lesions, generally occurring after septic episodes in immunodeficient patients or complicating neurosurgical procedures. Even though they are known complications of surgically treated intracerebral haemorrhages (ICH), the presence of a...
Variations in the anatomy of the lateral femoral cutaneous nerve (LFCN) have been reported in the literature. LFCN is vulnerable to injury during several surgical operations, therefore any surgeon intervening in the area should be familiar to its topographic variability. Lesion of the nerve leads ...
Rathke cleft cyst (RCC) is an uncommon albeit benign sellar lesion with an incidence rate of between 2 to 33%. RCCs are usually asymptomatic except in the large cases whit suprasellar extension. We herein describe a unique case of RCC, which presented with severe visual loss owing to massive herni...
AIM: To show the mutation in HTRA1 gene in a patient suffering from CARASIL syndrome with degenerated spine as a component of the disease. MATERIAL and METHODS: We identified a family that one of the members had CARASIL syndrome in eastern Turkey and collected venous blood from available persons....
Congenital bilateral perisylvian syndrome (CBPS) is characterized by epilepsy, cognitive deficits, pseudobulbar palsy and diplegia of the facial, pharyngeal and masticatory muscles. Epilepsy has been described in nearly 90% of affected patients. The epilepsy is usually severe and pharmacoresistant...
Acquired non-traumatic transethmoidal encephaloceles are very infrequent lesions that are generally caused by a tumor or hydrocephalus. As far as we know, there is no reported case of encephalocele after CSF diversion in the literature. We present a 25-year-old woman with hydrocephalus due to aqui...
The spinal column is rarely affected by hydatid cyst; however, when involved, it has higher rates of recurrence particularly in case of osseous and paravertebral extensions. We report a 36-year-old patient. The patient was operated previously for hydatid cyst through laminectomy 13 years ago. Afte...
AIM: Trigeminal neuralgia is a disabling form of facial pain that causes a considerable discomfort and a marked reduction in the quality of life. Although neurovascular compression is often associated with trigeminal neuralgia, other intracranial pathologies can result in compression along the ner...
Co-occurrence of different brain tumors is rarely observed, being more frequent in patients affected by genetic syndromes like phacomatoses. Different histological types of intracranial lesions may present at different times in the clinical history of the patient or, more rarely, they may occurr a...
Extradural archnoid spinal cysts are rare lesions. Their localization is usually the thoracic spine. Clinically, they are a cause of spinal cord and/ or nerve roots compression. The diagnosis is made by magnetic resonance imaging (MRI). The pathophysiology is not well known and seems to be differe...
AIM: Deep brain stimulation (DBS) of the subthalamic nucleus (STN) is an established therapy for patients with Parkinson’s disease (PD) associated with motor complications of long term L-dopa treatment. MATERIAL and METHODS: Here we report two cases with DBS- induced manic episode, focusing ...
The authors describe the clinical findings, radiographic appearance and surgical treatment of a spinal epidural hematoma (SEH) associated with spinal fracture in diffuse idiopathic skeletal hyperostosis (DISH). An 81-year-old male patient injured after falling from a 2.5 m tree presented with seve...
Solitary juvenile xanthogranuloma (JXG) in the spinal column is extremely rare. Here, we report and characterize the case of xanthogranuloma of the upper cervical spine. A 18-year-old male presented with neck pain for 3 months, along with progressive quadriparesis and sensory loss of 2 months dura...
Bacterial ventriculitis is one of the most difficult diseases of neurosurgery, if not controlled well in the early stage, it will cause empyema, adhesion and separated infectious ventricle locules inside the ventricle. Few studies focus on the relationship between external drainage volume and the ...
Basic research on cerebral aneurysms using computational fluid dynamics (CFD) simulations has recently progressed. We describe a clinical case with the use of CFD simulations. A 76-year-old woman had an unruptured anterior communicating artery aneurysm associated with pseudo-occlusion of the inter...
Piriformis syndrome is a clinical picture of non-discogenic sciatica caused by compression of the sciatic nerve by the piriformis muscle. It has variable etiologies and the patho-physiology is not fully understood. The major etiology was known to be the spasm, edema and inflammation of the pirifor...
Schwannomas are common, truly encapsulated and benign peripheral nerve sheath tumors. Their occurrence in extracranial locations is rare. Schwannomas most commonly occur in adults between 20 and 50 years of age. Their symptomatology usually mimics sciatic pain due to herniated disc. The most commo...
A patient received a ventriculoperitoneal shunt operation for hydrocephalus after subarachnoid hemorrhage. Postoperative computed tomography incidentally revealed asymptomatic pneumothorax caused by a shunt tube passing through the thoracic space. The patient was observed without removal of the tu...
Complex Regional Pain Syndrome Type I (CRPS-I) is a debated health problem concerning its pathophysiology and treatment strategies. A 12-year-old boy and a 35-year-old woman were diagnosed with CRPS-I at different times. They had previously undergone various types of interventions with no success....
AIM: Childhood meningiomas are scarce in clinical practice with an incidence ranging from 0.4 to 4.6% of all pediatric central nervous system (CNS) tumors. Cervico-occipital meningiomas account for 3.7% of childhood meningiomas and are slightly more frequent in male. RESULTS: A 5-year-old female p...
Spinal intradural malignant peripheral nerve sheath tumors (MPNSTs) in children are extremely rare, with only five reported cases in the literature. A 9-year-old female with neurofibromatosis type 2 (NF-2) presented with right hip pain and severe weakness of bilateral legs for 3 months. Magnetic r...
Angiosarcomas are rare malignant vascular tumors that comprise only approximately 2% of all soft tissue sarcomas. They are mainly located in the head and neck area and spinal involvement is particularly very uncommon, reported only in occasional case reports or as single cases as part of a clinica...
We report a case of ganglioneuroblastoma of the spinal cord in a 25-year-old man. Clinical history was short with paraparesis and bladder involvement. The MRI picture was that of an extradural solid tumor with extension to both intervertebral foramina, more suggestive of nerve sheath tumour rather...
Dermoid cysts are rare benign congenital tumors comprising 1.1 % of the spinal tumors, with lumbosacral region and cauda equina being the common sites. Many cranial cases with spillage of cyst contents into the subarachnoid space have been reported. We report an extremely unusual case of symptomat...
Gliosarcoma is relatively rare brain tumor of glial and sarcomatous origin. The occurrence of this highly malignant brain tumor in the vicinity of the clipped aneurysm has not been reported in the literature. The authors report a case of 37-year-old man who developed sudden onset severe headache. ...
Cubital tunnel syndrome is the second most common peripheral nerve compression syndrome. It is the most common peripheral neuropathy of the ulnar nerve. The surgical treatment of the cubital tunnel syndrome is widely described in the literature, however the variations of the standard muscular anat...
Cranial and intracranial involvement by myelomatous disease is relatively uncommon. Furthermore, systemic manifestations of multiple myeloma are present in the majority of these cases at the time of symptom onset. The authors report the case of a patient with serial appearance of multiple intracra...
Delayed posttraumatic cerebrospinal fluid rhinorrhea (CSFr) without meningitis is considered to be relatively rare. However, even years after trauma, recurrence or delayed onset of CSFr and meningitis due to CSFr are possible. In this article, a case of delayed CSFr from the sphenoid sinus without...
Myeloid sarcoma initially occurring in the sacral canal is often misdiagnosed as other pathological tumors on MRI due to the lack of a definite history or clinical evidence of granulocytic leukemia. Here, we report a case of 24-year-old male patient with myeloid sarcoma misdiagnosed radiologically...
Intracranial bronchogenic cysts (BCs) are uncommon, and BCs at the craniocervical junction are extremely rare. These lesions are most frequently encountered in the cervico-thoracic region of the spine. Their pathogenesis is still poorly understood. Regardless of the surgical approach, the aim of s...
Plasma cell tumors are characterized by a monoclonal proliferation of immunoglobulin-secreting plasma cells. Dural infiltration of plasma cells without involvement of the parenchyma, leptomeninges or skull is a rare event. We present a 34-year-old man presenting with hallucination and amnesia. Mag...
Complete spontaneous thrombosis followed by recanalization of non-giant aneurysms is a rare event that can be discovered incidentally on advanced neural images. In this case report, the authors described a woman who presented with subarachnoid hemorrhage (SAH) and left posterior cerebral artery (P...
The association between meningioma and hyperostosis of adjacent calvarium is well established. However, the cause of hyperostosis is still not certain. Various authors in the past have tried to explain this phenomenon by preceding trauma or by bone irritation by the tumor without bone invasion, wh...
INTRODUCTION: Gunshot wounds to the head (GSWH) account for the majority of penetrating brain injuries, and are the most lethal. Since they are rare in Europe, the number of neurosurgeons who have experienced this type of traumatic injury is decreasing, and fewer cases are reported in the literatu...
Arterial tortuosity syndrome (ATS) is an extremely rare autosomal recessive connective tissue disorder characterized by tortuosity and elongation of all major arteries. We report a clinical case of a girl with this rare condition, who initially presented with epilepsy. DSA or MRA revealed a severe...
Traumatic carotid-cavernous fistula (TCCF) is a rare neurovascular pathologic entity. The bilateral form occurs even rarer and given the potential risk for both optic tracts presents an urgent indication for quick and effective treatment. We present a patient with a bilateral Barrow type A TCCF wi...
We report a case of 25-year-old man presenting with a 2-year history of decreased hearing and tinnitus on the right side. Neurological examination revealed profound right retrocochlear sensorineural hearing abnormality, mild right facial spasm and positive Romberg sign. Magnetic resonance imaging ...
AIM: Neck pain is a common problem that may result from abnormalities in the soft tissues, bones and joints of the spine. However, upper neck and occipital pain syndrome due to unilateral idiopathic arthrosis of a C1-2 lateral articulation is a very rare condition. MATERIAL and METHODS: We describ...
Simultaneous multiple hypertensive intracranial hemorrhage is rare, and its mechanism is unclear. We report a case of simultaneous hypertensive bilateral thalamic hemorrhage. A 58-year-old man presented with sudden mild right hemiparesis. Computed tomography 1 hour after the onset showed bilateral...
Primary bone lymphomas (PBL) account for approximately 3% of all malignant tumors and are commonly found in the femur or pelvis. Only 1.7% of the PBLs are found in the spine. We report the case of a 73-year-old male complaining of cervical pain with progressive loss of strength and frequent falls....
Intracranial invasion of basal cell carcinoma is very rare. A case of a 71-year-old male patient is presented with extensive invasion of middle and posterior fossae, with nearly complete destruction of the petrous bone, involving cerebellopontine angle and cranial nerves by recurrent basal cell ca...
AIM: Sacral insufficiency fracture is an important cause of lower back and groin pain among the osteoporotic population. Diagnosis and treatment of SIFs are challenging. Currently, surgical treatment includes sacroplasty under C-arm fluoroscopy or computed tomography. Both techniques have a risk o...
Adeloye-Odeku disease is composed of dermoid cyst over anterior fontanelle, first described in 1971. We present an 11-year-old girl with a soft, fluctuant swelling over bregma. The lesion content was isointense to cerebrospinal fluid on both T2W and FLAIRW images. There was a lytic area under the ...
Functional neurological disorders (FND) have been a challenge to treat both for neurologists and neurosurgeons. Various ablative as well as non-ablative techniques have been used to treat these disorders. Gamma knife radiosurgery (GKRS) is also being practised to treat refractory obsessive- compul...
Simultaneous occurrence of carotid atherosclerotic disease and ipsilateral cerebral aneurysm is known because of common risk factors. When interventional neuroradiologists encounter such cases, issue of ‘in which order to treat these lesions ‘ is raised. If carotid artery disease is tre...
It is necessary to consider possibility of recanalization and retreatment after coil embolization for cerebral aneurysms. There is concern that retreatment for recanalized aneurysms after Y-stent-assisted coil embolization may be difficult because of double stents, especially in Y-stents with doub...
Although intracranial multiple aneurysms are not uncommon, multiple mirror aneurysms are relatively rare. A few isolated cases have been described. However, to the best of our knowledge, 3 pairs of pure symmetrical mirror aneurysms in one patient have not been reported yet. We present a case of mu...
The knowledge of minimal invasive spinal surgery has increased greatly in recent years. A current issue is the hydrogel implant inserted through nucleus pulposus. In this paper we present a case in which the hydrogel implant was found to be fragmented into the spinal canal at follow up. The patien...
Syringomyelia is a not infrequent pathology that develops related to changes in cerebrospinal fluid dynamics due to many etiological factors. The development of syringomyelia through a spinal arachnoid cyst is quite rare and has been defined in only 31 cases in the literature. A case due to thorac...
AIM: To evaluate the feasibility of this novel surgical approach for treatment of cervical discitis and vertebral osteomyelitis. MATERIAL and METHODS: This is a report of two patients who underwent anterior cervical decompression for discitis and vertebral osteomyelitis (DVO) with cervical spine r...
Glomeruloid microvascular proliferation (GMP) is a localized proliferation of vascular endothelial cells resembling a renal glomerule. The nature of cells participating in the formation of these structures remains unclear. While it is a characteristic feature of glioblastoma, it is rarely seen in ...
The chondroma originated in falx cerebri and dural convexity is very rare, less than 30 cases reported so far. Here, we report a case of 26-yearold male, with a huge mass at fronto-parietal falx cerebri, who was misdiagnosed as parafalcine meningioma on preoperative MR imaging. After surgery, the ...
Vascular complications after lumbar discectomy are rarely seen. We present a unique and potentially life-threatening postoperative complication from this procedure. A 27-year-old man was admitted to our emergency vascular unit 1 day after a lumbar discectomy, during which a scalpel blade fragmente...
Intracranial pial arteriovenous fistulas (AVFs) associated with multiple aneurysms of the main feeding arteries are very rare cerebrovascular lesions. We report a unique case of pial AVFs associated with four aneurysms of the feeding anterior cerebral artery (ACA) which presented as intracerebral ...
Pituitary apoplexy followed by cerebral infarction is rare. In this report, we present a 42-year-old man who had been diagnosed of pituitary adenoma presented with a sudden onset of unconsciousness, left hemiplegia and right ptosis. Investigations revealed the development of pituitary apoplexy. Th...
Extracranial meningiomas of the paranasal sinus are the rare tumors of unclear etiology. We report a case of primary extracranial meningioma arising from the roof of the sphenoid sinus. A 60-year-old female presented with 5-month history of right visual disturbance. Imaging studies showed a mass i...
We report the case of a 44-year-old man who experienced a fatal and untreatable delayed vasospasm after resection of a recurrent temporal IV grade primitive neuroectodermal tumor (PNET). The histological analysis demonstrated a rare rhabdoid variant of the tumor with a diffuse myxoid degeneration;...
Primary leptomeningeal lymphoma is very rare disease that is a subtype of primary central nervous system (CNS) lymphoma. Primary dural lymphoma is a subentity of primary leptomeningeal lymphoma and arises from the dura mater without systemic disease. A 47-year-old woman presented with an indolent ...
Three patients with spinal primary diffuse-type tenosynovial giant cell tumor (DTGCT) received surgical treatment in our department between 2002 and 2012. All 3 patients were female and aged 23, 33, and 44 years. The mean time from symptom onset to diagnosis was 17 months (range, 5–24 months...
A 42-year-old woman presented with right oculomotor, abducens, and trigeminal palsy. Neuroimaging revealed a small lesion in the right cavernous sinus mimicking meningioma. Because the symptoms gradually worsened, the patient underwent an endoscopic endonasal transsphenoidal surgery for tumor biop...
A case of hemangiopericytoma in the cervicothoracic spine is reported. A 43-year-old man was admitted to our hospital with pain in the scapular region radiating to the left upper extremity, numbness, and weakness of the legs. Magnetic resonance image revealed an intraspinal, extradural mass at the...
This report describes a rare clinical entity, thoracic myelopathy due to ossification of the posterior longitudinal ligament (OPLL), and its management. A 40-year-old woman presented with thoracic myelopathy due to OPLL, extending from T2–T9. We performed a posterior laminectomy and instrum...
Lymphoplasmacyte-rich meningioma (LPM) is one of the rarest variants of meningioma and those LPMs that arise in the intraventricular space are even rarer. LPMs are classified as grade I (benign) tumors with a low proliferative rate and diagnosis is made through the histological identification of h...
Pituitary carcinoma is extremely rare and difficult to diagnose early. Here we present a case of highly suspected pituitary malignant adenoma with early chemotherapy and radiation. A 30-year-old woman was admitted for headache and impaired vision, MRI found a sellar mass. Since there was no distur...
A 39-year-old male without any significant complaints or symptoms presented with a calcified lesion located at the sellar region. Total removal of the lesion has been achieved via an endoscopic endonasal transsphenoidal approach. Histopathological examination of the lesion revealed a pituitary sto...
A 38-year-old woman had complex, congenital heart anomalies, including double-outlet right ventricle with mitral atresia, severe left ventricle hypoplasia, atrial septal defect, and severe pulmonary stenosis, for which she had not received appropriate treatment. She presented to our institution wi...
Pilocytic astrocytoma with leptomeningeal dissemination is a rare phenomenon and can be associated with obstructive hydrocephalus and an unfavorable prognosis. Herein, we report a seventeen-year-old boy with a history of ventriculo-peritoneal shunt insertion due to severe hydrocephalus who present...
Intraosseous schwannomas of the mobile spine are extremely rare. To our knowledge, only 21 cases have been reported in the literature. In this report, we present a case of schwannoma involving the lumbar spine, with a review of the literature and discussion of this rare tumor. A 44-yearold male pr...
Pleomorphic xanthoastrocytoma (PXA), an uncommon glial neoplasm, typically affects adolescents and young adults and accounts for less than 1% of all astrocytic neoplasms. The authors present a case of PXA located entirely in the third ventricle in a 24-year-old male patient. The patient presented ...
Intracranial dural metastasis presenting as chronic subdural hematoma is a relatively rare clinical scenario. There are different theories explaining the formation of subdural hematoma in such cases. In this report we present a case of chronic subdural hematoma in a 44-yearold lady who did not hav...
The extent of the slice thickness in spinal axial and sagittal magnetic resonance imaging (MRI) is limited. We therefore, propose the idea of using coronal MRI to better delineate lumbar far lateral disc herniations. Six patients with coronal MR images who underwent surgery are presented in this s...
Schwannomas, also known as neurilemmomas, are generally benign peripheral nerve sheath tumors developing from Schwann cells. Peripheral nerve sheath tumors account for less than 8% of soft tissue neoplasms. Schwannomas are characterized by a slow-growing and non-infiltrating pattern. We report a 2...
Vertebral artery injury including thrombosis, arteriovenous fistula (AVF), pseudo-aneurysm and hemorrhage may be iatrogenic or due to penetrating or blunt trauma. Although mostly asymptomatic, vertebral artery injury may also present with vertebrobasilar insufficiency findings, cephalgia, radicula...
Chordomas located primarily in the sellar region are uncommon, and may be misdiagnosed non-functioning pituitary adenoma. Furthermore, the association of a persistent primitive trigeminal artery (PPTA) with an intrasellar chordoma is extremely rare, and no similar cases have been reported in the l...
Proximal ligation of the internal carotid artery (ICA) with high-flow bypass is one of the surgical strategies for treating large, unclippable ICA aneurysms. We encountered a rare case of recanalization of a large ICA aneurysm that disappeared after high-flow bypass surgery, and subsequently reapp...
We report the case of a large dissecting aneurysm of the anterior cerebral artery revealed by cerebral infarction in 38-year-old man. The volume and aspect of the aneurysm initially led us to the diagnosis of saccular aneurysm. Given the complete thrombosis, the risk of bleeding was low and antith...
Angiographically occult arteriovenous malformations (AOAVMs) are poorly understood. AOAVMs include spontaneous regression of cerebral AVMs. Here we discuss spontaneous angiographical regression of cerebral arteriovenous malformations (SRAVM). We present the case of a 34-year-old male patient with ...
Paraganglioma (PG) is a rare tumor of the dispersed neuroendocrine system. PG derives from the embryonic sympathetic and parasympathetic nervous system. Paraganglioma is a neoplasm of the dispersed neuroendocrine system that affects a variety of anatomic sites, mainly the head and neck. It occurs ...
With an incidence rate of 15-20%, meningiomas are one of the most common brain tumors among benign intracranial tumors. They are distributed as follows in intracranial localizations: parasagittal and falx (25%), convexity (18%), sphenoid wing (18%), parasellar (12%), posterior fossa (10%), intrave...
Salivary gland tumors constitute 3% of tumors in the body. Salivary gland tumors constitute 4% to 10.80% of all tumors in the head and neck tumors and most of them originate from the parotid gland. Most salivary gland tumors are benign. Basal cell adenocarcinoma is a rare salivary gland tumour. Mo...
A ruptured wide-necked basilar trunk aneurysm is uncommon in patients with moyamoya disease. The optimal treatment is unclear. We report a safe and beneficial treatment modality for moyamoya disease with aneurysms located in the posterior circulation. A 37-year-old man presenting with subarachnoid...
Sinus histiocytosis with massive lymphadenopathy or Rosai-Dorfman disease (RDD) is a reactive condition of unknown etiology, characterised by a proliferation of histiocytes exhibiting emperipolesis of lymphocytes and plasma cells. It usually presents as bilateral painless cervical lymphadenopathy....
Unexpected bleeding from the dural sinus can sometimes occur when performing a dural opening during microvascular decompression. We conducted dural opening safely by performing indocyanine green (ICG) videoangiography before making a dural incision. We introduce two specific cases in which surgery...
The “trephined” syndrome is a relatively rare complication after a large skull bone defect, consisting of a sunken skin above the bone defect with neurological symptoms such as severe headaches, mental changes, focal deficits, or seizures. Emerging data show improvements in the patient...
Intracranial mycotic aneurysm (MA), also known as intracranial infectious aneurysm, is a rare type of intracranial aneurysm. However, it carries a high mortality rate of 80% when ruptured and 30% even when unruptured. Here we report a 22-year-old male patient who consecutively developed two ruptur...
Calvarial tuberculosis is rare. It presents with single or multiple discharging sinus or a localized focal scalp swelling with overlying skin discoloration. Usually subgaleal collection is associated with evolution of sinus formation in different stages. However, extensive scalp swelling spreading...
Skull base fractures comprise a relatively common finding among trauma patients. Before the widespread use of computed tomography (CT), these lesions used to be misdiagnosed. Currently, with improved imaging technology, diagnosis of skull base fractures is no longer cumbersome. On the other hand, ...
Spontaneous intracranial hypotension (SIH) is caused by spinal leakage of cerebrospinal fluid (CSF). Treatment is directed at sealing the site of leak, which is often difficult to localize. We present a case of near fatal SIH that was treated with thoracic epidural blood patching. A 47-yearold mal...
Melanotic schwannoma is a rare “Schwann” cell tumor characterized by the deposition of melanin in the cell cytoplasm. Melanotic schwannoma varies greatly in terms of morphology and clinical manifestations. Here, we describe a patient with subdural extramedullary melanotic schwannoma of...
The major symptoms that are caused by Rathke’s cleft cysts (RCCs) are visual disturbances, headaches, and endocrine insufficiencies. Among these symptoms, the endocrine insufficiencies are thought to result from the spreading of inflammation that is induced by the cyst contents onto the pitu...
Tuberculomas are small tumor-like lumps that can be seen, usually in large numbers, in central nervous system involvement of tuberculosis. Giant tuberculomas that are big enough to cause symptoms of compression are also encountered, though rarely. When they are really large, tuberculomas may resul...
Bilateral pedicle fracture is an extremely rare entity and few cases have been reported in literature. A case of bilateral multi-level pedicle fractures involving four lumbar vertebrae is being presented. Bilateral pedicle stress fracture at L1 - L4 was observed in a 61-year-old woman presented wi...
Biventricular hydrocephalus caused by a Giant Basilar Apex Aneurysm (GBAA) is a rare finding that presents unique and challenging treatment decisions. We report a case of GBAA causing a life-threatening biventricular hydrocephalus in which both the aneurysm and hydrocephalus were given definitive ...
The coexistence of cerebral aneurysm and pituitary adenoma has been described previously. Most of such cases harbor functional tumors and anterior circulation aneurysms, with very rare cases of posterior circulation aneurysms. In this report, we present a case of subarachnoidal hemorrhage due to r...
Giant cell tumor is an uncommon but most aggressive benign tumour of the spine with unpredictable outcome and challenging treatment. Spinal giant cell tumors located above the sacrum are rare and treatment recommendations are still unclear. We report a rare case of this lesion in an adult and disc...
Glomus tumors are very infrequent in the spine. The lesions can grow intraosseously along the entire spinal axis. A single female presenting with back pain from the upper thoracic spine is reported on. Removal of this lesion may require reconstruction of the anterior column with posterior fixation...
Sildenafil is a drug used in the treatment of male impotence. Few cases of spontaneous intracerebral hemorrhage following the use of sildenafil have been cited in the literature. A 42-year-old man was admitted to the emergency outpatient clinic of İstanbul Educational and Research Hospital after s...
In this study, we try to present our experience of transaqueductal removal of the fourth ventricular neurocysticercosis (FVNCC) with a flexible neuroendoscope. Three cases of the fourth ventricular cysticercosis were transaqueductally removed with FUJINON EB-270P flexible neuroendoscope through a ...
We report a 66-year-old man with 2-month history of dizziness and 1-month history of diplopia. Cranial magnetic resonance imaging (MRI) disclosed two solid masses, one in the right lateral ventricle and another in the fourth ventricle. A surgical biopsy was performed on the basis of safety. The di...
Rosai-Dorfman Disease involves histiocytic proliferation of the lymphatic system. Extranodal disease involving the central nervous system is uncommon. Furthermore, the combination of this disease entity with Langerhans cell histiocytosis is an even rarer phenomenon that has only recently been high...
A 73-year-old female patient who had severe neuropathic pain due to sciatic nerve hypertrophy with the Klippel-Trenaunay Syndrome has been presented. Localized hypertrophic neuropathy is in one region and characterized by concentric proliferation of Schwann cells around the axon. It is very rare i...
We describe a supra-diaphragmatic ectopic pituitary adenoma that was safely removed using the extended endoscopic endonasal approach, and discuss the value of three-dimensional (3D) endoscopy and intra-operative magnetic resonance imaging (MRI) to this type of procedure. A 61-year-old-man with bit...
Intravenous tissue plasminogen activator (IVtPA) is effective for the treatment of acute stroke. Although IVtPA is easily administered and is effective in many cases, the clinical condition of some patients can worsen after the initiation of thrombolytic therapy due to sustained cerebrovascular in...
Complex multiple arteriovenous fistula (AVF) of the scalp is an extremely rare disease and the traditional treatment is either endovascular embolization or surgical resection with preoperative endovascular embolization. Here, a 34-year-old male with pulsating mass and multiple tortuous vessels in ...
Central nervous system (CNS) angiosarcoma, both primary and secondary, is an exceptionally rare malignant tumor. The behaviour of angiosarcoma is one of rapid progression with early metastatic spread but as with all sarcomas, the primary site may not clinically evident by the time metastases devel...
Spontaneous dissecting aneurysm of the extracranial internal carotid artery is uncommon, and simultaneous onset of multiple dissecting aneurysms is rare in patients without congenital or traumatic risk factors. A few reports suggest that extracranial internal carotid artery dissecting aneurysms ca...
Remote intraparenchymal hemorrhage after clipping of a ruptured aneurysm is rare. The pathogenesis is variable, and the therapeutic strategies remain controversial, because the natural history is unclear. Here we report a woman with subarachnoid hemorrhage (SAH), who had an aneurysm of the anterio...
Diagnosis, treatment, and surgery for lumbar disc herniations have existed for over a century. However, during the last three decades, there have been many new developments in imaging techniques, surgical procedures, physical medicine, and rehabilitation. In light of this, the most effective and a...
From January 2007 to April 2012, we performed 2427 surgical clippings for unruptured intracranial aneurysms (UIAs). Among these patients, two cases showed symptomatic and angiographic cerebral vasospasm in the delayed post-operative period without a complicated event. Additionally, we reviewed fou...
Dissection of the internal carotid artery is a rare cause of stroke overall, but causes 22% of strokes in younger patients. A common clinical presentation is as Claude Bernard Horner syndrome. We report a craniotomy with 30 degrees rotation of the neck (standard position) in a patient with no majo...
Arachnoid cysts (ACs) are congenital anomalies that occur within the cerebrospinal fluid (CSF) cisterns and major cerebral fissures. Suprasellar ACs comprise 5 12.5% of all the lesions. Despite being commonly reported, their etiology and pathogenesis still remain unclear. In this report, we pr...
Hydrogen peroxide (H2O2) is commonly used as a haemostatic agent in all type of surgeries. Some adverse effects have been described related to its use. However, only very few cases are published in the literature of a stroke associated with the application of this agent directly to the brain. We p...
Posterior communicating artery (PCoA) aneurysm-cavernous sinus fistulae are an extremely rare complication of head injury . The treatment of PCoA aneurysm-cavernous sinus fistulae has not been well described. A 27-year-old man was admitted with a retroocular bruit and blurred vision of the left ey...
Meningioma accounts for 15% to 20% of all intracranial neoplasms. Intracranial meningioma is a common brain tumor but huge meningiomas with extracranial extensions are extremely rare. Various symptoms, including neurological deficits and epileptic seizures are very frequent in these cases. Surgery...
A 75-year-old man with Lhermitte-Duclos Disease (LDD) manifesting as progressive headache is presented. Magnetic resonance imaging demonstrated a right cerebellar mass lesion with the characteristic “tiger-striped appearance”. A mild mass effect was evident at the medulla oblongata, ac...
Arachnoid collapse is a previously unreported complication of endoscopic choroid plexus coagulation (ECPC) treatment of hydranencephaly and is demonstrated in this case report. The variable anatomy found in hydranencephaly supports the use of ECPC as the preferred treatment option. However, the sa...
Surgical intervention is a gold standard technique for ruptured and unruptured middle cerebral artery bifurcation aneurysm. Before surgical intervention it is necessary to know the three-dimensional shape, surgical position, projection and position of the aneurysm and the course of the parent arte...
5-Aminolevulinic acid (5-ALA)-induced fluorescence-guided resection is a widely used procedure for patients with malignant gliomas. However, the clinical application of 5-ALA for surgery in primary central nervous system lymphoma (PCNSL) is uncommon. Here, we present a case of PCNSL treated using ...
Colloid cysts are the most common third ventricle lesions and metastasis to this area is rare. We presented a case of solitary metastasis from a renal cell carcinoma to the third ventricle choroid plexus mimicking a colloid cyst. A 53-year-old man, who had a history of renal cell carcinoma 12 year...
Nasal bleeding is a major complication that can occur during and after transsphenoidal surgery (TSS) for intra- and suprasellar tumors. In most cases, the cause of this bleeding can be attributed to a branch of the maxillary artery called the sphenopalatine artery, injury to which can lead to life...
In patients with high-grade atherosclerotic stenosis or occlusion of the extracranial cerebral arteries, subarachnoid hemorrhage (SAH) may occur, potentially due to rupture of fragile dilated pial collateral vessels. This association has been well described in Moyamoya disease. There are only few ...
Moyamoya disease, a rare chronic, progressive cerebrovascular disease leads to occlusion of intracranial internal carotid arteries and its proximal branches. We report a case of a 51-year-old female who presented with recurrent thalamic bleed and intraventricular haemorrhage nine years apart in th...
Though rare, a variety of bipartite atlas has been described. However, little has been mentioned about the hypoplastic C1 lateral masses in these cases. An unusual case of bipartite atlas, with hypoplastic lateral masses, os odontoideum and block vertebrae has been described with the surgical chal...
Fibromatosis is a benign lesion, which originates from proliferating fibroblasts. Although fibromatosis is a benign tumor, it is locally aggressive and invasive. Spinal presentation of fibromatosis is very rare, and case reports are the only source of the clinical knowledge. Herein, we describe th...
A lumbar epidural varicose vein is a rare clinical condition that can lead to neurological deficits. 3 types of lumbar epidural varicose veins were described according to the magnetic resonance imaging (MRI) findings: Type 1 is a thrombosed dilated epidural vein, type 2 is a non-thrombosed dilated...
Intracranial epidermoid cysts are usually located in the paramedian regions with characteristic imaging features. Intracystic hemorrhage is rarely reported with most in the cerebellopontine angle area. We described a case of hemorrhagic epidermoid cyst in cerebellar vermis. The patient was a 21-ye...
Metastatic adenocarcinoma in bilateral cerebellopontine angles (CPA) is rare. We report a case and review the current literature in order to enhance recognition of metastatic adenocarcinoma in the cerebellopontine angle. A 44-year-old man was referred to the hospital with rightsided diminished hea...
Intradural cement leakage after percutaneous vertebroplasty (PV) is a rare clinical picture. We report a 64-year-old woman with osteoporotic compression fracture of the L2 vertebral body developing monoparesis and monoparesthesia after PV. The diagnosis of intradural cement collection with spinal ...
Ewing’s Sarcoma (ES) is a rare malignant tumor that commonly arises from skeletal bone but rarely has an extraskeletal origin. Intradural ES is rare in childhood and adulthood. Intradural metastasis is very rarely encountered in clinical observations. There are only two reports of intradural...
Macrocerebellum is a rare entity characterized by an enlarged cerebellum. We describe a case of a 48-month-old child with macrocerebellum. We performed serial volumetric analysis [total brain volume (TBV) and cerebellar volume] over a period of 4 years. We analyzed the white matter microstructure ...
Tophaceous gout has classically been described as an affliction of the extremities. It has however been reported as early as 1947 to involve the spinal column. We report a 63-year-old male, previously scheduled for Anterior Cervical Discectomy and Fusion to correct an existing cervical myelopathy ...
Parent artery occlusion is an effective treatment for giant intracranial aneurysms that cannot be clipped directly by surgery in patients who tolerate balloon test occlusion. However, concern remains that impaired hemodynamics after parent artery occlusion may cause delayed ischemic events in the ...
The use of an extracranial-intracranial (EC-IC) bypass has been a choice to improve the safety of parent vessel occlusion during the management of aneurysm. However, the prognosis and subsequent patency of bypass graft are variable and have seldom been managed by endovascular treatment. A 38-year-...
A 28-year-old woman presented with complaints of severe buttock pain exacerbating for 2 weeks. Physical examination found numerous café-au-lait macules and axillary freckles. Neurological examination revealed sensory loss at the S3-S5 dermatome and significant vesicorectal dysfunction. Magnetic re...
The treatment of dural arteriovenous fistulas (DAVFs) at the foramen magnum remains controversial by reason that DAVFs appearing from the foramen magnum represent only a minority of spinal DAVFs. We present our treatment for an asymptomatic patient suffering from a foramen magnum DAVF. A 53-year-o...
The authors report on a 55-year-old man with complaints of intermittent pulsatile headache for 6 months, vision loss of the right eye and diplopia for 2 months. A magnetic resonance image (MRI) showed a large heterogeneously enhanced intrasellar mass lesion, occupying the entire hypophyseal fossa ...
Cerebral venous sinus thrombosis with internal jugular vein thrombosis is not reported as a complication in nephrotic syndrome. We report a 40-year-old male with nephrotic syndrome, who had headache during his hospitalization. Conventional diagnostic tests showed extensive thrombosis at the proxim...
Solitary fibrous tumor (SFT) is a rare, benign, spindle cell tumor that is most commonly found in the visceral pleura. The orbit is one of the most common extrapleural sites of occurrence. Though they can be seen in any age, they typically present in adults with proptosis as the prominent symptom....
The Klippel-Feil syndrome (KFS) has been reported to be associated with intracranial neoplasms, most frequently epidermoid or dermoid cysts. To our knowledge, however, patients who present with a posterior fossa dermoid cyst (DC) and KFS are extremely rare with only 24 previously reported cases in...
Hyperprolactinemia is a rare entity in the pediatric population. The most common causes of hyperprolactinemia include drug use, hypothyroidism and renal insufficiency, though rarely a pituitary or sellar mass is discovered. We present an immunocompetent pediatric patient who presented with gynecom...
Pulmonary blastoma is a very rare malignant tumor of the lungs. A biphasic pulmonary blastoma was histologically diagnosed by a characteristic finding as it was mainly constituted of immature tumor tissue that had both epithelial and mesenchymal components. We present a case of a 68-year-old man w...
Hemangiopericytoma is a hypervascular soft tissue sarcoma with a predilection for the extremities. It has two clinical types according to the age of presentation: Infantile hemangiopericytoma (1 years). The intracranial location is very rare and accounts for only 0.4-1% of all primary brain tumors...
Intracranial dermoid cysts are benign, slow growing tumors derived from ectopic inclusions of epithelial cells during closure of neural tube. These lesions, accounting for less than 1% of intracranial tumors, have characteristic computed tomography (CT) and magnetic resonance imaging (MRI) appeara...
Pituitary adenomas account for approximately 10% of intracranial tumors and 5% are locally invasive. Cavernous sinus invasion by pituitary tumors presents mostly with cranial nerve palsies, especially involving the third, fourth and sixth cranial nerves, which is well documented in the literature....
Tension pneumocephalus is an uncommon and life-threatening neurological condition. It requires emergent and immediate attention to prevent fatal complications. Head injury is the most common cause of tension pneumocephalus. Air can gain access into the cranium either through a fracture involving p...
Mortality associated with the occlusion of large vessels in acute ischemic stroke is particularly high despite best available medical therapy. Early and safe revascularization of the primary occlusion is correlated with good clinical result. We report two patients with acute ischemic stroke in who...
The aim of this report was to summarize our preliminary experience on the resection of tumors located in Meckel’s cave via the endoscopic endonasal transmaxillary transpterygoid approach with image-guided system and to investigate the feasibility and efficacy of this approach. Two patients w...
Bilateral thalamic glioma is extremely rare and the incidence cannot be adequately expressed. We present the case of a 72 years old male suffering from the rapid deterioration of cognitive function to moderately severe dementia in a short period of time. Magnetic resonance studies demonstrated a b...
This article reports the largest familial aggregation of Chiari malformation in a single family to date as reported in the literature. This study is a retrospective case series of a family of whom five individuals have a confirmed case of Chiari malformation and three additional individuals have C...
Cranial neuropathy is usually idiopathic and familial cases are uncommon. We describe a family with 5 members with cranial neuropathy over 3 generations. All affected patients were women, indicating an X-linked dominant or an autosomal dominant mode of inheritance. Our cases and a review of the li...
We are reporting the case of a 53-year old woman presenting to our hospital with a hemorrhagic low-grade glioma (LGG). She was admitted to a nearby general hospital where she had presented with aphasia, right hemiplegia and change of mental status. Computer tomography (CT) images showed a left tem...
A 20-year-old male patient was admitted to our clinic with a 1-year history of headache. The patient’s systemic-neurological examination and laboratory findings were normal. Computed tomography and magnetic resonance imaging were performed. Imaging findings showed calcified intraventricular ...
Echinococcus granulosus infrequently induces spinal hydatid cysts, and intradural hydatid cysts are extremely rare among these spinal hydatid cysts. We report a 30-year-old man with a history of progressive back pain caused by a previous back injury. Magnetic resonance imaging revealed a spinal in...
When tinnitus is pulse-synchronous, a vascular etiology is suggested. We present a case of persistent and troublesome pulsatile tinnitus caused by a transverse-sigmoid sinus diverticulum that was endovascularly treated with stent-assisted coiling. A 39-yearold woman presented with a 4-year history...
In patients affected by malignant tumors, spinal column metastases are frequent. The incidence varies between 30% and 70%. Lung cancer is the second most frequent cancer invading the spine in women, following breast cancer. All patients are under risk of symptomatic spinal cord compression. The pr...
Fahr’s Syndrome is characterized by the presence of intracerebral, bilateral and symmetrical calcifications located in bilateral basal ganglia, thalamus, and cerebellum. The etiology is not exactly known. The authors reported a very rare case who had Fahr’s Syndrome and intracerebral a...
While several approaches have been suggested for performing a transthoracic corpectomy of the thoracolumbar spine, the steep learning curve and high risk of operative morbidity often dissuades its use clinically. As a result, posterior approaches have been more frequently used, though transthoraci...
Letter to Editor
(80)Retracted Article: https://neurosurgery.dergisi.org/abstract.php?lang=en&id=2190
During the last few years, virtual reality (VR) has been increasingly implemented in the neurosurgical practice. The scope of this paper is to briefly outline the educational role of this novel technology in training surgeons. At the same time, the ability of VR workstations such as the Dextroscop...
Special Article
(2)The concept of a mentor represents one of the most important pillars of medical training. It constitutes one of the oldest and noblest arts that has contributed to the growth of this specialty for generations. Mentorship is the essential way to transmit knowledge and values to future generations, ...
Thanks to Reviewers
(14)Systematic Review
(3)AIM: To systemically review the efficacy, safety, and clinical applications of B-cell lymphoma 2 (BCL-2) family inhibitors such as venetoclax (ABT-199), navitoclax (ABT-263), and obatoclax (GX15-070) across different malignancies. MATERIAL and METHODS: A systematic search was conducted in the PubM...
Aretaeus of Cappadocia is considered as one of the greatest medical scholars of Greco-Roman antiquity after Hippocrates. He presumably was a native or at least a citizen of Cappadocia, a Roman province in Asia Minor (Turkey), and most likely lived around the middle of the second century (AD) His e...
Technical Note
(33)AIM: To demonstrate the possible use of mixed reality (MR) technology in neurosurgery for multiple purposes, including preoperative planning, training, and three-dimensional (3D) navigation. MATERIAL and METHODS: Using magnetic resonance imaging (MRI) and computed tomography (CT), 3D holographic i...
To describe the strategies and techniques to improve the outcomes in intracranial hemorrhage during endovascular procedures, a case of a 60-year-old male with symptomatic basilar artery stenosis who underwent balloon angioplasty procedure following an iatrogenic basilar artery hemorrhage, is prese...
Decompressive hemicraniectomy (DHC) can improve outcome in patients with elevated intracranial pressure (ICP) refractory to medical therapy. However, this transition point for treating refractory ICPs with DHC is unclear as ICPs can often be controlled with escalating doses of medical management. ...
The integration of interventional and surgical techniques is requiring the development of a new working environment equipped for the needs of an interdisciplinary neurovascular team. However, conventional surgical and interventional tables have only limited ability to provide for these needs. We h...
In macrosurgery creating a knot with at least three throws is an established practice. The potential disadvantages of this practice in microsurgery include the following: the direction of the cut ends interfere with the suture line, unbalanced nature of knot disturbs the apposition of delicate ves...
AIM: To present the surgical planning, manufacturing and implantation of an individualized 3D-printed prosthesis for cervicothoracic reconstruction in a six-level recurrent chordoma. MATERIAL and METHODS: A 40-year-old female patient with recurrent cervicothoracic chordoma was admitted in our cent...
Removing a broken pedicle screw is not always easy. Different methods and tools have been developed to remove the broken screw. Preserving the pedicle is an advantage for re-instrumentation. The head of the broken screw can be modified with the aid of a high-speed drill and the screw can be remove...
After advent of the power driven tools, the ease of surgeons and pace of surgery has been enhanced. Nowadays, most of the neurosurgeons are tend to use the motorized drills for elevating a bone flap to make a craniotomy. The bone cutting by the craniotome is wide and nonbeveled, which mandates the...
The mediobasal temporal region (MTR) is a deep part of the brain covered by eloquent structures. In certain cases, accessing this region is challenging. According to the literature, the supracerebellar transtentorial (SCTT) approach provides safe access to the MTR. Since this approach was introduc...
Craniosynostosis surgery may result in temporal hollowing occasionally. Overexpansion of the normal side and undergrowth of the affected side exacerbate the problem in unilateral cases (like unicoronal synostosis). Temporalis muscle lies in the temporal fossa, and it is usually severed or detached...
AIM: To present an alternative endovascular treatment option for the vein of Galen aneurysmal malformation by ethylene-vinyl alcohol copolymer embolization via a double-lumen balloon microcatheter. MATERIAL and METHODS: A female patient was suspected with the vein of Galen aneurysmal malformation ...
AIM: To present the application of volume rendering technique (VRT) of computed tomography (CT) scan in cranio-vertebral junction (CVJ) surgeries. MATERIAL and METHODS: The authors used VRT images of CT scan in patients of congenital CVJ anomalies who were subjected to various surgeries through m...
AIM: To determine whether the endoscopic transorbital (ETO) approach could be an alternative and a safer route to access the cavernous sinus (CS) lateral compartment. MATERIAL and METHODS: ETO technique was studied on 3 cadavers and 6 CSes of these cadavers. Endoscopic dissection was visualized w...
AIM: To report the retrograde technique of horizontal stenting through the PCoA using a Solitaire AB stent. MATERIAL and METHODS: A self-expandable stent was deployed from one posterior cerebral artery to the opposite, across the neck of a ruptured wide-neck basilar apex aneurysm. RESULTS: The te...
AIM: To describe a simple technique of angular adjustment of cerebral angiographic views that makes them similar to the surgical field under the operation microscope. MATERIAL and METHODS: The technique of angular adjustment consists of three steps: 1. Upside-down 180-degree rotation of the stand...
AIM: To present a substitute strategy for clipping: coil embolization of the ruptured aneurysm followed by intentional, staged clipping. CASE DESCRIPTION: We treated five cases of ruptured intracranial aneurysms with branches arising from the neck. The mean aneurysm diameter was 4.4 mm. In the ac...
AIM: To improve the extent and safety of resecting these deep-seated tumors, we report a novel procedure of minimally invasive endoscopic resection of deep-seated pilocytic astrocytomas under the guidance of 5-aminolevulinic acid (5-ALA) fluorescence undescribed until now. CASE DESCRIPTION: A 53-...
AIM: To provide a training model for microvascular patch graft angioplasty of the common carotid arteries (CCAs) in rats. MATERIAL and METHODS: Using male Sprague-Dawley rats (n=20), an oval-shaped arterial patch 3 mm in length and 1.2 mm in width was prepared from a segment of left CCA, and a lin...
AIM: To present the ability of standard intraoperative neuronavigation to reliably identify the stylomastoid foramen, thus providing a quick and effective recognition of the facial nerve at its exit from the skull base. MATERIAL and METHODS: We describe the technical nuances of this procedure by p...
AIM: To present a technique for tightening continuous suture loops in microvascular side-to-side anastomosis with a microneedle. MATERIAL and METHODS: The technique for tightening continuous suture loops with a microneedle was presented in side-to-side microvascular anastomosis in chicken thighs a...
AIM: To weight the benefits and limitations of intraoperative use of micromirrors in neurosurgery. MATERIAL and METHODS: Surgical cases where micromirrors were employed were retrospectively selected from the surgical database of five different surgeons in different hospitals. Complications directl...
AIM: To evaluate the efficacy and safety of total en bloc spondylectomy with autologous sternal structural graft, subaxial pedicle screws, and 5.5 mm titanium rods in primary bone tumor surgery. MATERIAL and METHODS: From January 2019 to February 2020, two patients with lower cervical spine (C7) p...
AIM: To report our experience and the technique of two-step effective Onyx embolization from occipital artery (OA) for the obliteration of dural arteriovenous fistulas (DAVFs) with OA feeders. MATERIAL and METHODS: The medical records of patients with intracranial DAVFs treated with trans-arterial...
Intradiploic meningiomas are rare neoplasms, often mistaken for metastases or malignant bone tumors. Surgical management can be challenging, considering their diffusive bony invasion. Two main critical decisions need to be taken: the timing for cranial vault reconstruction and the choice of the ad...
Cranioplasty is not only performed for cosmetic reasons but also for physiological requirements to balance the cerebral hemodynamics and to protect the brain from external traumas. Methyl methacrylate is one of the most preferred materials for cranioplasty. It is usually prepared out of the surgic...
There are a number of different surgical approaches in middle cerebral artery (MCA) aneurysm surgery. Evolution from the classical pterional approach towards smaller modified approaches took place over the years. In the present report, we describe a new modified approach in the treatment of MCA an...
This work describes a simple technique for the safe removal of the midline parietal bone with the synostotic sagittal suture in infants with sagittal synostosis to avoid dural tearing and bleeding from the superior sagittal sinus. The technique consists of stepwise removal of the midline parietal ...
In recent years, endoscope use for the excision of brain stem lesions or those localized to the anterior part of the brain stem has started. In this paper, a case of upper clival meningioma resected through the endoscopic endonasal transclival route has been presented with illustrations, and live ...
Wearable technology interfaces with normal human movement and function, thereby enabling more efficient and adaptable use. We developed a wearable display system for use with intra-operative neuronavigation for brain tumor surgery. The Google glass headup display system was adapted to surgical lou...
Atlantoaxial instability is a special entity that may be caused by many disorders such as trauma, tumor, arthritis, congenital malformation and infection. Atlantoaxial fixation is needed to provide stability, prevent neurological deficits and correct deformity. The aim of this report is to introdu...
Cranioplasty is a commonly performed procedure following decompressive craniectomy. The patients are usually young earning persons and increasing cost of treatment is difficult to bear especially in low and middle income countries. A variety of options are available for cranioplasty ranging from a...
Shunt systems are not perfect devices and can cause severe complications. Complications may originate from problems related to the valve, the patient, or the surgery and are more common in neonates, infants, especially preterm, by reason of the special characteristics of these patients. We, theref...
In side to side anastomosis and end to end (one way up) microvascular anastomosis, the back wall of the vessel is sutured first with inverted/buried knots. A common mistake made by surgeons during this step is the formation of a granny knot. In inverted suturing, cut ends of granny knot points ins...
Turkish Neuro -Excursion
(24)The Turkish Neurosurgical Society (TNS) played a pivotal role in providing critical medical support during the Kahramanmaraş earthquake. Recognizing the urgent need for neurosurgeons, our team collaborated with various institutions to address material shortages and meet medical requirements. Howev...
Since the inception of the International Fellowship (IF) Program in the Department of Neurological Surgery at the University of Wisconsin-Madison in 2006, training has been provided to 219 residents, neurosurgeons, and medical students from 18 countries and five continents. These IFs took a long a...
Water is essential for life. It is needed not only to survive but also to sustain daily life activities. The maintenance of daily life activities related to hygiene as well as prevention of epidemic diseases and accidents involving fire was as important in the past as today. Powerful empires built...
Philosophy meaning ?love of wisdom? is a research product of people who think, produce ideas, and transfer these ideas to each other. The philosophy of science questions the concept of ?scientific knowledge? and analyzes the procedures and observations for a logical explanation of facts from a sci...
In the past decade or perhaps a little earlier than that the concept of teamwork evolved among the circles of surgeons especially among those involved in complicated and time consuming surgeries. Skull base surgeries were one of those surgeries where the role of teamwork was acutely felt owing to ...
The main purpose of medicine is to protect humans from diseases and its complications. Patients may be at risk in the course of diseases or during medical and surgical treatments, which can have undesirable consequences, including death. These risks, which are accepted by all medical authorities a...
The word "minimalism" is a word derived from French the word "minimum". Whereas the lexical meaning of minimum is "the least or the smallest quantity necessary for something", its expression in mathematics can be described as "the lowest step a variable number can descend, least, minimal". Minimal...
Architectural production has been influenced by a variety of sources. Forms derived from nature, biology and live organisms, had often been utilised in art and architecture. Certain features of the human anatomy had been reflected in design process in various ways, as imitations, abstractions, int...
Artists use their work to help us understand the universe. With their creations, we can rest our souls, find some solutions to problems, and even explore new dimensions. A 19th-century artist, Gérôme, has depicted a gesture used to ask for mercy as a benediction sign in two of his works of art d...
Poems are essential in art and vital organs in literature. Similarly, surgery (and neurosurgery) is also regarded to be an art in medicine. From Hippocrates to nowadays, there is a debate on whether medicine -especially surgery- is a kind of an art or a field of science or a combination of both. T...
Perspective
(1)AIM: To evaluate the effectiveness of dynamic stabilization as an alternative to traditional fusion surgery for the treatment of lumbar disc herniation and degenerative disc disease, focusing on its impact on segmental stability and patient outcomes. BACKGROUND: Back pain is a prevalent global hea...
Historical Perspective
(3)AIM: To investigate the competition of radiologic development between Turkey and Greece during the Greco-Ottoman War when the first application of X-Ray took place. MATERIAL and METHODS: A literature review was conducted, and we searched the published papers about X-Ray using during the Greco-Tur...
AIM: To present one of neurosurgery?s earliest pioneers, Dr. Vahdettin Turkman, who contributed to neurosurgical practice globally from east to west (Iraq, Tukey, England, Germany and the United States) in the early 1960s. MATERIAL and METHODS: This paper is the result of numerous interviews condu...
AIM: To assess the safety and efficacy of utilizing dural suturing as an adjunctive procedure for saddle floor reconstruction in patients undergoing endoscopic surgery in the sellar region. MATERIAL and METHODS: According to the PRISMA guidelines, we searched the literature on sellar floor reconst...
History
(5)Spine deformities are among the most important spinal disorders, affecting health-related life quality. Although there are some studies in past centuries, most spine deformity-related studies and research has started in the last century. Many surgical techniques, performed between 1960 and 1990, m...
In the medical literature, various ethnic terms such as Caucasian or Mongolian,are sporadically cited to indicate the relationship between certain disorders and the geographical origin of individuals. Few scientists recognize that those definitions stem from a medical thesis written by the German ...
Microsurgical techniques have played a crucial role in the development of neurosurgery and microsurgical education has an involuting role to gain surgical competence in neurosurgery. Microsurgery laboratory at Gulhane Military Medical Academy (GMMA) was established in 1985 by Prof. Erdener Timur...
Dr. Zinnur Rollas is the founder of the Department of Neurosurgery at the Gulhane Military Medical Academy (GMMA). He was educated in the United States and returned to Turkey in order to practice neurosurgery. He is also the first surgeon who performed pediatric neurosurgical procedures at GMMA. D...
Case Illustration
(6)A case of 60-year-old woman with idiopathic syringomyelia and progressive myelopathy by dorsal arachnoid web is presented. One focal indentation along the dorsal surface of the spinal cord at the T3 vertebral body level revealed the scalpel sign, a radiological entity diagnostic of a dorsal thorac...
Dural granuloma is extremely rare. To our knowledge, there has no case reported solitary spinal dural syphilis granuloma worldwide so far. Here we report our findings in a 49-year-old woman, who presented with 10-year progressive left lower-limb numbness and two weeks of right lower-limb numbness....
An 18-year-old man was admitted with a 1-month history of headache and disturbed visual acuity. Neurological examination revealed a visual field defect of bilateral inferotemporal areas. The endocrinological examination was normal. Magnetic resonance imaging (MRI) revealed a large cystic lesion in...
Intramedullary spinal cord metastasis is an uncommon manifestation of systemic tumor. We present a case of metastatic mass inside the thoracic spinal cord 6 years after nephrectomy because of renal cell carcinoma. The parenchymal lesion was resected totally and the histologic examination confirmed...
Stroke in children is relatively uncommon. We describe an 8-year-old boy diagnosed with primary eosinophilic granuloma (EG) of the frontal bone. After excision of the EG, the postoperative course was eventful. The patient had an acute right middle cerebral artery (MCA) infarct and had been comatos...
Technical Report
(3)AIM: The main purpose of this report is to demonstrate the effects of fractionated radiosurgery regimens in the management of optic gliomas MATERIALS and METHODS: Two patients suffering from progressive loss of vision due to optic nerve gliomas were treated with Gamma Knife radiosurgery in three...
AIM: Previous studies have not identified a preferred surgical technique to treat posttraumatic syringomyelia. Both syringopleural shunting and arachnoidolysis are used in neurosurgery practice for the surgical treatment of posttraumatic syringomyelia. In this study, we present a new technique des...
A standard pterional scalp incision is commonly used in the surgical treatment of lesions located at the cranial base. There is a close relationship between the superficial temporal artery and a pterional scalp incision. Standard pterional scalp incision is widely used in the aneurysm surgery of t...
Article With VideoClip
(4)In adolescents and young adults, ependymomas are the most common intramedullary tumors in the spinal cord.These tumors arise from ependymal cell lining the ventricles and spinal canal. The clinical presentation of intramedullary ependymomas are variable and nonspecific. They usually present with d...
Endoscopic Third Ventriculostomy (ETV) is a minimally invasive and safe method used in the treatment of obstructive hydrocephalus. However, arterial bleeding episodes that arise from narrowing of the safe perforation area due to a higher location of the basilar artery (BA) may have tragic conseque...
The natural history of Moyamoya disease (MD) is variable. Moyamoya disease in children mostly presents with progressive ischemic complications and in adulthood it tends to present with hemorrhage. Surgical strategies depend on augmenting cerebral blood flow to the anterior cerebral circulation. Re...
Intracranial pseudoaneurysms (IP) represent about 1% of all patients presenting with an intracranial aneurysm. In true intracranial aneurysms, the intima, internal elastic lamina, and media are disrupted, but the adventitia is intact. In pseudoaneurysms, there is disruption of all three layers of ...