Turkish Neurosurgery
Long-term Surgical Treatment Outcomes of Spinal Schwannomas: Retrospective analysis of 49 consecutively operated cases
Erhan Emel 1, Anas Abdallah1, Özden Erhan Sofuoğlu1, Ali Ender Ofluoğlu1, Müslüm Güneş1, Betül Güler1, Bilge Bilgiç2
1Bakirkoy Research and Training Hospital for Neurology Neurosurgery and Psychiatry, Department of Neurosurgery, Bakırköy,
2Istanbul University Faculty of Medicine, Department of Pathology, Istanbul,
DOI: 10.5137/1019-5149.JTN.15678-15.1

Aim:Spinal schwannomas (SS) represent the most common intradural extramedullary lesions, accounting for approximately 24% of all nerve sheath tumors in adults. In this study, long-term outcomes of 49 consecutive SS have been presented.Material and Methods:Medical records were retrospectively reviewed in 371 cases of spinal tumors who underwent surgery between the years 2005 and 2014. Cases which confirmed as schwannoma histopathologically were included in this study. Patients’ compliants, localizations, recurrence rate and complications were evaluated. Results:49 cases of SS were detected in 47 patients; 26 women (55.3%) and 21 men (44.7%) patients. The mean age was 45.8±13.7 years. The mean follow-up period was 61.4±21.5 months. The most common complaints were local pain (85.7%). Eleven (22.5%) cervical , ten (20.4%) thoracic, twenty-four (49%) lumbar, and 4 (8.1%) in the sacral spine. Thirty-three (67.4%) cases were intradural-extramedullary, fifteen (30.6%) cases were extradural type, and one case was extra-intradural type (2%). Recurrence rate was 4.08%. gross-total resection was achieved in Forty-eight patients. Conclusion:SS is mostly benign and intradural-extramedullary tumor. To avoid serious complications, we recommond intraoperative neurophysiological monitoring and laminaplasty especially in young patients. Schwannomas have infrequent, but existent possibility of malignancy, therefore, gross-total resection is the treatment of choice.

Corresponding author : Anas Abdallah