Background: In most of the institutes Lumbar Microdiscectomy surgery is done under General Anaesthesia. However, it is not uncommon to do these surgeries under Spinal Anaesthesia Aims and objectives: To compare the analgesic effectiveness in postoperative pain, cost-effectiveness and complications of spinal anaesthesia and general anaesthesia who underwent single Level Lumbar Microdiscectomy under General Anaesthesia vs who were administered Spinal anaesthesia for the same Materials and methods: A prospective observational study was conducted on patients undergoing lumbar micro-discectomy in the department of orthopaedics of a tertiary care hospital in Maharashtra, India. The study duration was two years [January 2020 to December 2020]. The patients older than 18 years who were not responding to 6 weeks of conservative therapy, epidural steroid injection, physiotherapy, and having low back pain with radiculopathy with claudication with or without neurological deficit were included in the study. We included 25 cases each in the spinal anaesthesia (SA) and general anaesthesia (GA) group. Outcome variables like peri-operative complications (blood loss, urinary retention, PONV), surgery length, length of stay (LOS), time from entering OT to incision, time from bandaging to exit time, and time of stay in the recovery room were studied among both the groups. Chi-square or fishers exact test to test the difference between proportions and student t-test to test between the means were statistical tests used. Results: The VAS score reduction immediately post-operative among GA group was 79% and SA group was 75% and this difference was not significant. (p>0.05)The time from post anaesthesia care unit from operation theatre [GA Vs. SA; 60.44 minutes Vs. 20.45 minutes] , time of surgery (time to enter in OT to incision) [GA Vs. SA; 30.22 minutes Vs. 15.55 minutes], time from bandaging to exit from OT[GA Vs. SA; 16.34 minutes Vs. 6.12 minutes] and average hospital stay[GA Vs. SA; 3.05 days Vs. 1.61 days] were significantly higher among GA group when compared to SA group. (p<0.05) The average cost of procedure among GA group was 26500 INR and among SA group was 18500 INR. (p<0.05) Conclusions: In terms of VAS pain score reduction, SA was comparable with GA. Our study showed that SA was superior to GA in terms of time consumption, cost, and hospital stay while maintaining better perioperative hemodynamic stability without increasing adverse side effects. Keywords: Lumbar micro-discectomy, Spinal Anaesthesia, General Anaesthesia, Cost-effectiveness

Giant cell tumor is a relatively rare neoplasm. In GCT the axial skeleton is extremely rarely involved. Most GCT arises in the meta-epiphyseal ends of the long bones. Peak incidence is between 30 to 40 years of age. GCT is usually classified as benign, but shows aggressive behavior and occasionally undergo transformation to malignancy. The patients with GCT in the spine often complain of the lower back pains, as the tumors primarily involve the sacrum. We report a case of an adolescent female complaining of the upper back pain with a sudden weakness of the lower extremities, later diagnosed with the GCT of the D8 vertebra. The present patient was operated using posterior lateral approach of spine and proper rehabilitation was done. Subsequent follow up revealed improvement in carrying out her daily activities.