高齢者の腰椎変性疾患に対する手術治療成績

抄録

In this paper, we report the clinical results of surgical treatment for lumbar degenerative diseases of aged patients (older than 65 years). In particular, we compared the cases using instrumentation and the cases that did not. 77 cases, who were treated surgically over 5 years (1993 to 1997), were studied, with a mean follow-up period of 2.5 years. This included 38 males and 39 females, with mean age of 70 years. 21 cases were treated with instrumentation, and 56 cases. The preoperative and postoperative symptoms were compared using the JOA score and Hirabayashi's scoring system.
Cases using instrumentation showed improvement of the average JOA score from 7.5 points preoperatively to 12.4 points. The average improvement rate was 67.2%. In cases that did not use instrumentation, the average JOA score improved form 7.6 points preoperatively to 11.5 points, and the average improvement rate was 51.3%.
We believe instrumentation surgery is useful for treating lumbar degenerative diseases of aged patients.