抄録
Between 1979 and 1996, 99 lumbar canal stenosis patients over 65-years were treated with posterior decompression surgery. The mean age at surgery was 71.6 years (range, 65 to 83) and the length of follow-up was an average of 23.7 months (range, 6 to 90). These patients were divided into two groups (with fusion or without fusion). The clinical scores were evaluated retrospectively with the Japanese Orthopedic Association low back pain rating score (JOA-score). The JOA-score was an average of 8.9 preoperatively and 15.9 postoperatively (improving rate: 49.6%). There was no significant difference between these two groups. However, low back pain improved in fusion groups more than in the no-fusion groups.
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