腰椎椎板开窗减压术对腰椎矢状位曲度的短期影响

The influence of lumbar curvature after the lumbar laminectomy decompression

目的：观察腰椎板开窗减压手术对腰椎曲度的影响、并分析原因。方法：选取2009年7月至2010年10月在我科住院治疗的50例行腰椎后路腰椎板开窗减压术的患者进行回顾研究，并采用弓形曲度及COBB角测量法对术前、术后1周的腰椎正侧位片进行测量，观察手术前后腰椎曲度的改变。结果：腰椎手术对腰椎曲度（弓形面积、COBB角）改变无相关性（P〈0．05），以年龄偏低、术前曲度差的患者改善较明显。结论：腰椎板开窗减压术对腰椎曲度的改变无明显相关，以年龄偏低、术前曲度差的患者改善较明显，其具体机制仍需进一步研究。

Purpose： This study was investigate the relationship between designed to the lumbar laminectomy and the lumbar curvature. Methods： A retrospective review of 50 patient received lumbar laminectomy in our department from 2008.7-2010.10 was conducted in the research.The X-ray radiographs were collected pre-operation, post-operation, one-week-after operation, measured using arch form area and Cobb angle methods to evaluate the change of lumbar curvature Results： An analysis was done to examine the relation- ship between the lumbar laminectomy and lumbar curvature.It was found that there was negative correlation between the above two.The group with young age and poor curvature was found to have better improvement after operation. Conclusions： The lumbar laminectomy was found poor relationship with the lumbar curvature, The group with young age and poor curvature was found to have better improvement after operation, but the mechanism still not clear. Further research will carry out later on.