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全球2个手腕关节置换的失败:一个检索研究
Thomas J Joyce1, Göksu Kandemir1, Nasri H Zreik2
1School of Engineering, Newcastle University, Newcastle upon Tyne, United Kingdom.
Journal of wrist surgery
|January 23, 2026
概括
由于聚乙烯损伤,Universal 2 整体手腕关节整形显示出令人失望的长期结果. 这是由于灭菌问题和较小植入物的设计缺陷造成的,导致部件故障.
科学领域:
- 整形外科手术 整形外科手术
- 生物材料科学是生物材料的科学.
- 对故障分析进行了分析.
背景情况:
- 全球2手腕整形术,一种常见的植入物,长期表现不佳.
- 故障与显著的聚乙烯损伤和金属化有关.
研究的目的:
- 为了调查聚乙烯损伤的根源原因,获取了通用2全手腕关节整形组件.
主要方法:
- 从一个单一中心检索六个Universal 2手腕和两个额外的聚乙烯组件的检索分析.
- 聚乙烯组件的宏观分析和维度测量.
- 与体内成分定位进行比较,以确定材料损失的区域.
主要成果:
- 较小的植入物更频繁地被修改,材料损失主要发生在侧.
- 聚乙烯故障发生在腰侧盲孔的底部,特别是在更小的尺寸和更薄的底部.
- 通过变色和表面疲劳表示的氧化被观察到,体内平均时间为13.8年.
结论:
- 聚乙烯的故障是由于不适当的灭菌和设计缺陷的结合,使得较小的组件变得更薄.
- 建议对使用Universal 2手腕植入物的患者进行持续监测.
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