Lumbar Canal Stenosis Decompression Using Bilateral Interlaminar Versus Classic Laminectomy Technique

Abstract

Objective: The study compared the postoperative back pain VAS score in bilateral interlaminar and classic laminectomy techniques in patients with lumbar canal stenosis.
 Material and Methods: This randomized controlled experiment was carried out at Ayub Teaching Hospital's Neurosurgery Department. 30 patients were in the bilateral interlaminar (BIL) group (A) and 30 were in the traditional laminectomy group (B). The bilateral interlaminar decompression technique was carried out utilizing the operating microscope. Both groups employed facet joint undercutting to reduce the 61-facet joint excision. All patients had postoperative CT scans to assess how well the decompression went. Postoperative VAS score was stratified to age, gender, duration of complaints, and duration of the procedure.
 Results: In group A, the mean age of patients was 51.10 years while in group B, the mean age was 54.500 years. There was a male dominance of male patients in both groups. The baseline mean VAS score was 7.9 in group A and group B both. The duration of the procedure was 71.2 minutes in group A, and 104.7 minutes in group B. Mean postoperative VAS score was 5.4 in group A and 3.3 in group B. There existed a significant difference in mean postoperative VAS scores between groups concerning gender, the duration of complaints, and procedures.
 Conclusion: In patients with lumbar canal stenosis, bilateral interlaminar allows for safe and adequate spinal canal decompression.
 Keywords: Lumbar canal stenosis (LCS), Bilateral Interlaminar (BIL), Classic Laminectomy, Visual Analog Scale (VAS).