3D-CT Evaluation of Enlargement of Lumbar Canal for Lumbar Degenerarive Spondylolisthesis
1998
We carried out a three-dimensional computed tomography (3D-CT)study on 33 patients with lumbar degerative spondylolisthesis treated by the enlargement of the lumbar canal without fusion. The purpose of this study was to show the effects of enlargement of canal after operation.We found that good enlargement of canal was achiered and round canal continued for a long time. There were no cases of increasing postoperative instability.The average pre operative JO Ascore was 14.1 points and the average post operative score was 26.3 points. It was very important to roduce the post-superior margin of the vertebral body during slipping.Enlargement of the lumbar canal is proposed as a useful method for lumbar degenerative spondylolisthesis.
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