Turkish Neurosurgery 2021 , Vol 31 , Num 5
Endoscopic Transorbital Approach to the Cavernous Sinus Lateral Compartment (Anatomical Cadaver Study)
Melih CAKLILI1,Atakan EMENGEN2,Burak CABUK2,Ihsan ANIK2,Savas CEYLAN2
1Taksim Education and Research Hospital, Department of Neurosurgery, Istanbul, Turkey
2Kocaeli University, School of Medicine, Department of Neurosurgery, Kocaeli, Turkey
DOI : 10.5137/1019-5149.JTN.34972-21.2 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 with a 0-degree angle endoscope and recorded with fiberoptic cable, light source and camera system and digital video recording system.

RESULTS: Superior orbital fissure (SOF), optic canal (OC), anterior ethmoidal artery (AEA) and posterior ethmoidal artery (PEA) foramens were visualized with periorbital dissection. Anterior wall of CS was reached after drilling the optic strut (OS). When the wall was opened, CS lateral and anteroinferior compartments were visualized. Internal carotid artery (ICA) were visualized from proximal ring to the last 2 cm of paraclival carotid artery. Cranial nerves (CNs) within the CS and the course of the interclinoid ligament were revealed.

CONCLUSION: The transorbital endoscopic method is an alternative approach to other techniques for accessing the lateral and anteroinferior compartments of CS. The advantages, disadvantages and limitations of the technique have been determined. Keywords : Transorbital, Lateral compartment, Anteroinferior compartment, Optic strut, Superior orbital fissure

Corresponding author : Melih CAKLILI, dr.melihcaklili@yahoo.com.tr