The long-term wear of retrieved McKee-Farrar metal-on-metal total hip prostheses
The long-term wear of retrieved McKee-Farrar metal-on-metal total hip prostheses
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DOI：
10.1016/j.arth.2004.09.028
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发表时间：
2005-04-01
影响因子：
3.5
通讯作者：
Subramanian, C
中科院分区：
文献类型：
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作者：
Howie, DW;McCalden, RW;Subramanian, C
在翻修全髋关节置换术中取回了二十四个钴铬合金 McKee-Farrar 匹配的髋臼和股骨组件。平均原地时间为16年。磨损和球度损失非常低。确定了铰接表面的抛光磨损（类型1）、细磨料磨损（类型2）、多向钝磨料磨损（类型3）和单向钝磨料磨损（类型4）。 2、3 和 4 型磨损所占股骨头面积的平均百分比分别为 18%、5% 和 2%。磨损的类型和分布与原位时间之间没有关联。 9 对种植体存在明显的撞击损坏。本文描述的磨损程度和类型在分析金属对金属关节新设计的表面损伤模式时将很有用。
Twenty-four cobalt-chrome alloy McKee-Farrar matching acetabular and femoral components were retrieved at revision total hip arthroplasty. The average time in situ was 16 years. Wear and loss of sphericity was very low. Polishing wear (type 1), fine abrasive (type 2), multidirectional dull abrasive (type 3), and unidirectional dull abrasive wear (type 4) of the articulating Surfaces were identified. The mean percent area of femoral heads occupied by types 2, 3, and 4 wear was 18%, 5%, and 2%, respectively. There was no association between the type and distribution of wear and the time in situ. impingement damage was evident on 9 implant pairs. The extent and types of wear described in this paper will be useful when analyzing, the patterns of surface damage of newer designs of metal-on-metal articulations.