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 injections were performed. Postoperative follow-up was conducted at least 24 hours after the procedure. All patients were treated under sedoanalgesia. Bone biopsies were collected from all patients.

RESULTS: One hundred ninety-nine vertebra fractures were treated in 130 patients. The mean age of the patients was 65.27 ± 8.79 years (18?90 years) and 66 patients were male (50.7%). Forty-five patients had osteoporosis, six patients showed malignancy, and osteomyelitis was found in three patients, while the others? presentations were secondary to trauma. Most commonly, the L1 (n=59), Th12 (n=45), and L2 (n=34) levels were found to develop vertebral fractures. Forty patients had multiple levels of vertebral fracture, with a higher rate of osteoporosis (n=24; 60%). Three patients showed undiagnosed oncologic disease with an initial diagnosis of acute fracture following minor trauma, while the primary oncologic diagnosis was established by bone biopsy taken during the routine procedure in each procedure (e.g., plasmacytoma, lymphoma, adenocarcinoma of the lung). None of the patients developed an infection due to kyphoplasty, permanent neuromotor deficit, or mortality. The mean postoperative hospital length of stay was 1.6 days.

CONCLUSION: Bone biopsy should be performed to diagnose early spinal metastases. Although an accurate bone biopsy may not be obtained from some patients, particularly from those with osteoporosis, performing bone biopsy during the procedure does not cause time loss or any other complications, and protects the surgeon from possible medicolegal problems. Keywords : Kyphoplasty, Bone biopsy, Spinal metastases, Vertebral fracture