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Generation of fretting wear debris at the stem-cement interface in total hip replacement

Zhang, H., Brown, L., Blunt, Liam and Barrans, Simon (2007) Generation of fretting wear debris at the stem-cement interface in total hip replacement. In: Proceedings of Computing and Engineering Annual Researchers' Conference 2007: CEARC’07. University of Huddersfield, Huddersfield, pp. 1-4.

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Abstract

Fretting wear debris generated at the stem–cement interface has nowadays been considered to play an important role in the overall failure of cemented total hip replacement (THR). Those wear debris within a certain size range would transport along bone cement deficiencies to bone tissue, resulting in a significant bone resorption and subsequent aseptic loosening of the femoral component, which is regarded as the primary reason for revision of cemented THR. In order to study the influence of the time period of in vivo service of the prosthesis on generation of fretting wear debris, we performed two in vitro wear simulations using identical femoral stem and bone cement, but applying different loading cycles. By conducting a detailed investigation of the bone cement surface with the use of optical microscope, scanning electron microscope (SEM) associated with energy dispersive X-ray (EDX) analysis, we came to a conclusion that for the specific bone cement studied, sufficient loading cycles were required to dislodge the metallic debris from the femoral stem surface, which indicated that generation of fretting wear debris was indeed influenced by the time period of in vivo service of the prosthesis.

Item Type: Book Chapter
Uncontrolled Keywords: femoral stem, bone cement, fretting wear, wear debris
Subjects: T Technology > T Technology (General)
T Technology > TJ Mechanical engineering and machinery
R Medicine > RD Surgery
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 > Computing and Engineering Annual Researchers' Conference (CEARC)
School of Computing and Engineering > Pedagogical Research Group
School of Computing and Engineering > Turbocharger Research Institute
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Depositing User: Graham Stone
Date Deposited: 23 Mar 2009 13:58
Last Modified: 23 Sep 2014 11:29
URI: http://eprints.hud.ac.uk/id/eprint/3698

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