変性々腰椎疾患における後方手術例の検討

Abstract

328 cases of degenerative lumbar diseases were treated by posterior approach operation for past 11 years. They consisted of lumbar disc herniation (LDH) in 190 cases, lumbar spinal canal stenosis (LCS) in 109, osteochondrosis intervertebralis in 12 and lumbar spondylolysis or olisthesis in 15. We sent these patients postcards and gathered information by questionaires. 219 postcards (66.8%) were returned to us. The results of operative intervention were fair or poor in 11 cases (9%) of LDH and in 12 cases (16.4%) of LCS. These fair or poor cases were studied. In LDH, some of patients with severe pain and numbness of legs had sequestrated or large hernia. Patients with low back pain had disc instability and narrowing on X-ray.In LCS, many patients of fair or poor results had complications or postoperative stenosis. All of 8 patients who had drop foot caused by LDH or LCS have severe numbness of legs.