王翔;郑明辉;童凯;蔡毅;朱永健;陈建庭;瞿东滨;

• 1:南方医科大学南方医院脊柱骨科
• 2:南方医科大学南方医院创伤骨科

摘要(Abstract)：

[目的]观察胸腰椎骨折经后路长节段固定术后脊柱旋转力线的恢复情况,并探讨力线失衡的原因及其临床意义。[方法]分析本院2006年1月~2015年1月收治的45例胸腰椎骨折患者,AOSpine骨折分型为A3、A4、B型,其中男27例,女18例,年龄18~62岁,平均(33.02±10.41)岁,均接受后路长节段椎弓根螺钉内固定术。在正侧位X线片上测量患者手术前后棘突旋转距离(SPRD)及伤椎侧(后)凸Cobb角,统计固定节段长度、螺钉使用总数,计算单个椎体螺钉使用个数。根据术后脊柱旋转力线恢复情况,将患者分为力线良好组和力线失衡组。通过比较两组手术前后的测量指标,探讨力线失衡的原因及其临床意义。[结果]45例患者中,旋转力线良好者占32例(71.11%),旋转力线失衡者占13例(28.89%)。两组术前SPRD比较差异无统计学意义(P>0.05);术后1周及末次随访时,失衡组患者SPRD明显大于良好组(P<0.05)。两组固定节段长度和螺钉使用总数比较差异无统计学意义(P>0.05);而单个椎体螺钉个数,失衡组(1.37±0.32)个,明显少于良好组的(1.71±0.29)个(P<0.01)。[结论]后路胸腰椎长节段内固定能有效复位骨折椎体,恢复脊柱的生物力学特性;但部分患者术后存在脊柱旋转力线失衡的情况,与螺钉固定情况、手术技巧等方面密切相关,对术后脊柱稳定性有重要意义。

关键词(KeyWords)： 胸腰椎骨折;长节段固定;旋转力线;螺钉数目;脊柱稳定

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 王翔;郑明辉;童凯;蔡毅;朱永健;陈建庭;瞿东滨;

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