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The purpose of this study was to determine the efficacy of microsurgery compared with conventional surgery for lumbar disc hernia. This retrospective study included patients with intervertebral lumbar disc herniation in 2 institutions from 2004 to 2008. The first group of patients was treated by a conventional surgery method and the second group was treated by a new modified lumbar micro discectomy. Lumbar radical nerve root syndrome, compression of a nerve root, sensory function, loss of work capability, and pain were major categories for a patient’s clinical assessment and pre and postoperative outcomes. Statistical analyses were done by using the SPSS-12 program. During the study period, 178 patients underwent lumbar discectomy and of those 103(57.9%) were men and 75(42.1%) were women. Post-operatively, the percentage of patients with severe back pain was reduced to 10.20% in standard discectomy versus 1.25% in microdiscectomy group. Normalization of tendon reflex was more prominent in the microdiscectomy group as compared with standard discectomy (98. 75% versus 75. 51% respectively).
The neurological examination showed that recovery of sensory function was much higher in the group that received microsurgery. This study proves that our modified intervertebral lumbar micro discectomy surgery has more advantages than traditional lumbar discectomy surgery.
