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Understanding initiation and propagation of fretting wear on the femoral stem in total hip replacement

Zhang, Hongyu, Brown, Leigh, Blunt, Liam, Jiang, Xiang and Barrans, Simon (2008) Understanding initiation and propagation of fretting wear on the femoral stem in total hip replacement. Wear, 266 (5-6). pp. 566-569. ISSN 0043-1648

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Abstract

The femoral stem–bone cement interface in total hip replacement is supposed to experience low amplitude oscillatory micromotion under physiological loading, consequently leading to fretting wear on the stem surface, which nowadays is considered to play an important part in the overall wear of cemented prosthesis. However, initiation and propagation of fretting wear has been poorly documented and a better understanding concerning this issue has not been established as yet. This present study, on the basis of a profound surface investigation of a polished Exeter V40™ femoral stem and Simplex P bone cement obtained from an in vitro wear simulation, demonstrated that the edges of the micropores in the cement surface matched pretty well to the boundaries of the worn areas on the stem surface. This would indicate that these micropores contributed significantly to the fretting process at the stem–cement interface

Item Type: Article
Subjects: T Technology > T Technology (General)
T Technology > TA Engineering (General). Civil engineering (General)
Schools: School of Computing and Engineering
School of Computing and Engineering > Centre for Precision Technologies
School of Computing and Engineering > Centre for Precision Technologies > Engineering Control and Machine Performance Research Group
School of Computing and Engineering > Centre for Precision Technologies > Surface Metrology Group
School of Computing and Engineering > Pedagogical Research Group
School of Computing and Engineering > Turbo Research Institute
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Depositing User: Briony Heyhoe
Date Deposited: 29 Apr 2009 12:05
Last Modified: 23 Sep 2014 12:25
URI: http://eprints.hud.ac.uk/id/eprint/4078

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