侯志超;李凯;卫小春;

• 1:山西医科大学第二医院骨科骨与软组织损伤修复山西省重点实验室

摘要(Abstract)：

[目的]探讨膝OA患者膝关节放射学骨赘大小与负重位下肢力线的关系。[方法]对40例接受人工全膝关节置换术的原发性骨关节炎患者(共40膝),利用躯体X线测量系统进行负重位下肢力线的测量。将膝关节正位X线片导入计算机,应用Photoshop软件长度测量工具分别测量股骨远端、胫骨平台宽度和骨赘长度。骨赘长度与骨端宽度的比值,称为骨赘突起指数。应用SPSS软件通过Pearson相关检验,评价测量者内及测量者间骨赘突起指数重复性,探索膝OA患者膝关节放射学骨赘大小和负重位下肢力线之间的关系。[结果]40例膝OA患者负重位下肢力线平均为:12.53°±5.62°。测量者内及测量者间骨赘突起指数有较好相关性,r接近1(P<0.001)。负重位下肢力线与股骨内侧髁骨赘突起指数呈正相关(r=0.530,P<0.001),与胫骨平台内侧骨赘突起指数呈正相关(r=0.618,P<0.001)。负重位下肢力线与股骨外侧髁(r=-0.008,P=0.961)、胫骨平台外侧(r=0.244,P=0.129)骨赘突起指数间无相关性存在。[结论]膝OA患者股骨内侧髁骨赘突起指数、胫骨平台内侧骨赘突起指数与负重位下肢力线呈正相关,机械应力通过生物化学因素促使骨赘的形成可能是此现象的原因。

关键词(KeyWords)： 骨关节炎;骨赘;突起指数;下肢力线

Abstract:

Keywords:

基金项目(Foundation): 山西省重点实验室开放基金资助项目(编号:2009011059-9);; 山西省青年科技研究基金资助项目(编号:2010021034-5)

作者(Author): 侯志超;李凯;卫小春;

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