Avoidable causes in pedicle instrumentation failure Evaluation of the Efficacy of Video Assisted Endoscopic Thoracic Sympathectomy for Patients with Primary Hyperhydrosis Fixation of Type II Odontoid Fractures with Anterior Single Screw Role of Surgery in Tuberculosis of Thoracic and Lumbar Spine Ventriculoperitoneal Shunt Failure in Pediatric Patients with Hydrocephalus Comparative Study Between Open Limited Lumbar Discectomy and Microdiscectomy for A Single Level Lumbar Disc Prolapse Cubital tunnel syndrome, simple decompression, is it effective? PERITUMORAL BRAIN EDEMA IN MENINGIOMAS: CORRELATION WITH SURGICAL FINDING AND PROGNOSIS Short-Segment Transpedicular Screw Fixation of Unstable Traumatic Thoracolumbar Spine Fractures