ABSTRACT
Highlighting the prospective evaluation of the surgical outcome of pedicle screw usage in the treatment of degenerative lumbar spine disease in fifty-five patients who were treated consecutively via a posterior surgical approach with pedicle screw fixation. A total of 55 consecutive patients with degenerative lumbosacral spine disease were treated at AL Mosul Teaching Hospital. Patients were included if they were between the ages of 25 and 60 years, they were admitted to the hospital with chronic back pain and or radicular pain and had a pedicle anatomy (based on a preoperative X-ray) that could accommodate surgical stabilization with PS instrumentation and fusion. Posterior surgical stabilization of the degenerative lumbar spine disease with pedicular screws was done and before discharge, each patient underwent a postoperative X-ray of the lumbosacral spine. In this series 55 patients were operated on for pedicular screw fixation with connecting bar, all patients underwent decompression except 2 cases, 47 patients with 2-level fixation and 8 patients with 3-level fixation. All patients' pain disappeared or became less, as well as paraesthesia.10 patients with lower limb neurological deficits improved. Only 5 of all patients are re-operated (three due to displacement, one due to a broken screw, and one due to a loose screw), 3 patients developed Dural tears and were treated by suturing with muscle patch, no vascular injury, no post-operative infection seen but one patient developed DVT post-operatively treated conservatively. Pedicle screw fixation facilitates the bone-fusion process, and its use is associated with a relatively low complication rate. The application of pedicle screws can be technically demanding; a thorough working knowledge of spinal anatomy and the principles of pedicle screw insertion will greatly contribute to their safe and accurate placement. These devices should be used when there is any feature of instability or due to iatrogenic instability after wide bone removal or after the destruction of facet joints.
