臼假体位置对全髋关节置换术后假体受力及磨损的影响

被引：4

作者：

杨显春

朱振安

机构：

[1] 上海交通大学医学院附属第九人民医院骨科

来源：

医用生物力学 | 2008年 / 04期

关键词：

全髋置换术; 臼假体位置; 受力; 磨损;

D O I：

暂无

中图分类号：

R687.4 [关节手术];

学科分类号：

100220 [骨科学];

摘要：

全髋关节置换时臼假体的位置安放不当可导致术后脱位、增加骨-假体的应力,加快假体磨损。髋臼假体安放于轻度内上的位置可增加骨-假体界面的接触,从而降低了接触面应力,临床预后更好。计算机辅助导航系统广泛用于骨科手术中,它对空间长度和角度的定位有很好的精度。髋臼假体的外展角和前倾角显著影响THA术后假体的受力及磨损。本文还简要回顾了超高分子量聚乙烯材料磨损机制的研究进展。

引用

页码：332 / 336

页数：5

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