Introduction: Low back pain is a common cause of morbidity and disability, with a prevalence of 28.5%. Among the causes of chronic low back pain, lumbar spinal stenosis is most common. Symptomatic canal stenosis causes neurogenic claudication, back and radicular leg pain. The aim of decompressive surgery is to relieve radicular leg pain and improve walking distance.

Objectives: To study the clinical presentation of patients with lumbar spinal stenosis. To evaluate functional outcome and complications associated with surgical decompression of lumbar canal stenosis. To assess the rate of recovery postoperatively.

Materials & Methods: A prospective analytical study was conducted on 30 patients at SSIMS & RC, Davangere, Karnataka. Materials & Methods: A prospective analytical study was conducted on 30 patients with surgical decompression of lumbar canal stenosis between February 2023 to February 2025 at SSIMS & RC, Davangere, Karnataka. Patient underwent decompressive laminectomy of the selected levels of stenosis. Patients followed up at 4 weeks, 8 weeks,3 months, 6 months and 1 year postoperatively. Patients were assessed with Oswestry disability index score and Visual analogue scale at each follow-up.

Observation: Degenerative Lumbar canal stenosis, observed more commonly in the adult age group. Pathology including loss of disc space height, telescoping of the facets, bulge of the posterior anulus and the posterior longitudinal ligament and the hypertrophy of the Ligamentum flavum eventually leads to the narrowing of the spinal canal dimension. Spinal decompression reduces leg pain, which in turn improves walking distance and gait.

Results: The mean age of patients was 58.6 years, with a male predominance (56.7%). The most affected level was L4-L5 (66.7%). Significant improvement was seen in VAS and ODI scores postoperatively (p<0.001). Most patients (80%) showed good clinical outcome. Neurological recovery was gradual and complete in most cases within 6–12 months. Complication rate was low (13.3%), including dura tears and superficial infections.

Conclusion: In patients undergoing surgical decompression for lumbar spinal stenosis, radicular symptoms were relieved in majority of the patients at 4 weeks follow up. However Sensory deficits and motor deficits improved over 6-12 month’s duration.