腰部脊椎管狭窄症に対する治療経験

抄録

The authors report on a retrospective analysis of 32 patients undergoing posterior approach surgery for the clinico-radiological diagnosis of lumbar stenosis. Patients had a medial facetectomy, a hemilaminectomy and a wide laminectomy. The patient who had a medial facetectomy showed tendency to get better results than that who had a wide laminectomy. Postoperative vertebral subluxation with pain and restricted movement occurred following extensive wide laminectomy especially when degenerative spondylolisthesis had been presented. We recommended a medial facetectomy for lumbar canal stenosis especially with degenerative spondylolisthesis. Further study is necessary to make a comparison between a medial facetectomy and a wide laminectomy with fusion.