Abstract
Objective: To investigate the novel application and effectof Percutaneous Full-Endoscopic transforaminal approach for lumbar dumbbell tumors. Methods: A retrospective analysis of 12 cases of lumbar dumbbell tumors was conducted by Percutaneous full-endoscopic transforaminal approach in the Department of Neurosurgery, Fujian Medical University Union Hospital from Feb, 2018 to Jul, 2019. According to Eden classification, 5 cases in type Ⅲ and 7 cases in type Ⅳ. The Japanese Orthopaedic Association (JOA) score and Pain Visual analogue Scale (VAS) were used to compare the recovery of neurological function before and after surgery. Results: All the 12 tumors were completely removed in one stage. The pathological reports were all schwannomas (WHO grade Ⅰ). The VAS scores were significantly decreased compared with preoperative ones (P<0.001). The JOA scores were significantly improved without obvious complications and spinal instability. Median length of follow-up was 14 months with a range of 4 months to 20 months, there is no tumor recurrence and spinal instability. Conclusion: In the treatment of lumbar dumbbell spinal tumor, the full endoscopic transforaminal approach is a novel, safe and effective surgical procedure which removes the tumors intra-foramen and extra-foramen with less damage of spine, smaller possibility of instability and faster recovery.
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