颈椎前路椎弓根螺钉置入的解剖学研究The anatomic study of anterior cervical vertebral pedicle screw insertion
董亮;谭明生;移平;杨峰;唐向盛;
摘要(Abstract):
[目的]分析颈椎前路椎弓根螺钉内固定的解剖学参数,研究其可行性;通过文献分析比较国内外相关数据。[方法]取42具成人正常干燥颈椎标本,分别用手工和三维CT测量C2~C7椎弓根高度和宽度,进钉点位置,进钉方向,前路椎弓根螺钉进钉轴线上的椎体长度、椎弓根长度及总长度,用统计学分析手工和CT测量差异。以"颈椎"、"前路"、"椎弓根"为关键词搜索CNKI、PubMed、Scopus,纳入含以上相关数据的文献进行比较分析。[结果]手工测量数据与CT数据无统计学差异。除6.4%的C3椎弓根宽度<4 mm外,C2~C7椎体椎弓根平均高度和宽度均≥4 mm。进钉点位置:C3、C4位于椎体正中矢状面的对侧,距离正中为2~3 mm;C5~C7位于同侧,距离正中C5:1.38 mm,C6、C7:4~5 mm。C3~C7距离椎体上终板的距离为5~8 mm。进钉点方向,与矢状面的夹角:C2、C5、C6为38°~40°,C3、C4为43°~47°;与横断面的夹角:C2~C4角度为下倾,角度分别为19.43°,10.58°和5.93°;C5~C7角度为头倾,分别为1.94°,6.29°和7.50°。各椎弓根轴线总长度为29~32 mm,轴线上椎体长度约为14 mm。比较国内外文献中椎弓根宽度和高度以及进钉点位置显示:上述解剖学数据存在差异。[结论]该实验利用手工和三维CT进行大样本研究,为临床上应用颈椎前路椎弓根螺钉内固定提供了解剖学数据。同时针对国内外不同测量方法和测量对象得出的数据进行对比,为进一步研究其差异提供依据。
关键词(KeyWords): 颈椎;前路;椎弓根;解剖学
基金项目(Foundation):
作者(Author): 董亮;谭明生;移平;杨峰;唐向盛;
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DOI:
参考文献(References):
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