TY - JOUR
T1 - A machine for the preliminary investigation of design features influencing the wear behaviour of knee prostheses
AU - McGloughlin, T. M.
AU - Murphy, D. M.
AU - Kavanagh, A. G.
PY - 2004
Y1 - 2004
N2 - Degradation of tibial inserts in vivo has been found to be multifactorial in nature, resulting in a complex interaction of many variables. A range of kinematic conditions occurs at the tibio-femoral interface, giving rise to various degrees of rolling and sliding at this interface. The movement of the tibio-femoral contact point may be an influential factor in the overall wear of ultra-high molecular weight polyethylene (UHMWPE) tibial components. As part of this study a three-station wear-test machine was designed and built to investigate the influence of rolling and sliding on the wear behaviour of specific design aspects of contemporary knee prostheses. Using the machine, it is possible to monitor the effect of various slide-roll ratios on the performance of contemporary bearing designs from a geometrical and materials perspective.
AB - Degradation of tibial inserts in vivo has been found to be multifactorial in nature, resulting in a complex interaction of many variables. A range of kinematic conditions occurs at the tibio-femoral interface, giving rise to various degrees of rolling and sliding at this interface. The movement of the tibio-femoral contact point may be an influential factor in the overall wear of ultra-high molecular weight polyethylene (UHMWPE) tibial components. As part of this study a three-station wear-test machine was designed and built to investigate the influence of rolling and sliding on the wear behaviour of specific design aspects of contemporary knee prostheses. Using the machine, it is possible to monitor the effect of various slide-roll ratios on the performance of contemporary bearing designs from a geometrical and materials perspective.
KW - Total joint replacement
KW - Ultra-high molecular weight polyethylene (UHMWPE)
KW - Wear debris
KW - Wear-test machine
UR - http://www.scopus.com/inward/record.url?scp=2142716777&partnerID=8YFLogxK
U2 - 10.1243/095441104322807758
DO - 10.1243/095441104322807758
M3 - Article
C2 - 14982346
AN - SCOPUS:2142716777
SN - 0954-4119
VL - 218
SP - 51
EP - 62
JO - Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine
JF - Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine
IS - 1
ER -