吴坚;吕明;柳剑;杨德金;窦勇;周一新;

• 1:北京积水潭医院矫形骨科

摘要(Abstract)：

[目的]通过对全髋置换术后髋臼假体角度的CT测量,总结使用传统手术方法安放髋臼假体角度的临床现状,评估使用传统手术方法安放髋臼假体角度的准确性,并就医生经验对安放髋臼假体角度准确性的影响进行研究。[方法]对2011年9月20日～11月20日在本院进行全髋置换的206髋进行了前瞻性研究,所有手术均采用侧卧位后外侧入路和传统手术方法,没有借助任何定向器等辅助器械,手术由12名医生完成,其中6名高级职称医生完成131髋,6名主治医生完成75髋。术后1周内进行了CT测量,使用三维CT方法测量了髋臼假体的倾斜角和前倾角,并对研究中使用的三维CT方法进行了准确性研究。将测量的倾斜角和前倾角数据与Lewinneck提出的理想范围:倾斜角(40±10)°,前倾角(15±10)°进行比较分析,评估使用传统手术方法安放髋臼假体角度的准确性。将高级职称医生组的数据与主治医生组的数据进行比较,研究医生经验对安放髋臼假体角度准确性的影响。[结果]本研究中使用的三维CT方法测量髋臼倾斜角和前倾角在组内测量和组间测量中均有很高的准确性,ICC>0.99。在206例髋关节中,倾斜角平均为(36.07±6.72)°,78.16%的病例在安全范围内;前倾角平均为(16.27±8.26)°,76.21%的病例在安全范围内;倾斜角和前倾角均在安全范围内的占总病例数的60.19%。高级医生组与主治医生组完成的手术在髋臼假体角度方面没有显著区别(P>0.05)。[结论]三维CT测量髋臼角度是准确可靠的。目前本院使用传统全髋置换技术安放髋臼假体时,倾斜角为(36.07±6.72)°,前倾角为(16.27±8.26)°;安放髋臼假体角度的准确性不理想,有60.19%的髋臼安放在Lewinneck安全区。使用传统手术方法,医生经验并不能显著提高安放髋臼假体角度的准确性。

关键词(KeyWords)： 全髋置换术;髋臼假体角度;三维CT

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 吴坚;吕明;柳剑;杨德金;窦勇;周一新;

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参考文献(References)：

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