A Prospective Study on the Outcome of Degenerative Lumbar Spinal Stenosis Treated With Open Laminotomy

BackgroundLaminotomy is one of the surgical treatments for spinal stenosis.MethodWe conducted a prospective study including 58 patients with mean follow-up of 37.5 months, successful rate was 72%.ResultThere were significant improvement of mean Japanese Orthopaedic Association lumbar score, Oswestry Disability Index(ODI), and visual analogue scale (VAS). Male had significantly better result in ODI and VAS. There was no significant difference regarding to older age (>65) or the presence of preexisting degenerative spondylolisthesis. One patient was found to have increased lumbar instability after operation. The overall reoperation rate was 6.9%.

中文摘要椎板切開術是治療退化性腰椎管狹窄症的其中一種方法。 我們進行了一個前瞻性的研究，當中有58位病人，平均覆診時期為37.5個月， 手術成功率為72%。 術後的日本骨科協會腰椎評分(JOA lumbar score)，歐式下背痛失能量表 (ODI) 和疼痛量表 (VAS)的平均值有明顯的改善。 男性在ODI和VAS上有較好的術後結果。年長的(65歲以上) 或術前以知有退化性脊椎滑脫症的卻沒有明顯分別。 其中一位病人術後被發現腰椎不穩症惡化。整體上，再手術的比率為6.9%。