PMID: 15348829Sep 7, 2004Paper

The influence of stress conditions on the wear of UHMWPE for total joint replacements

Journal of Materials Science. Materials in Medicine
P S BarbourJ Fisher

Abstract

In vitro studies of the effect of contact stress on the wear of ultra high molecular weight polyethylene (UHMWPE) in orthopaedic applications have produced contradictory results which predict both increased and decreased wear with increasing contact stress. In vivo studies of functioning hip prostheses have reported that 22 mm femoral heads generate lower linear and volumetric wear rates than 32 mm femoral heads. The effect of decreasing the head size will increase the contact stress but decrease the sliding distance per motion cycle. The present study consists of wear experiments under a range of contact stress magnitudes and application conditions in order to simulate the wear processes occurring in vivo. The results from these tests indicated that the wear factor actually decreases with increasing contact stress if the stress was not varied with time. If a time dependent or spatially varying stress was applied, the wear factor can increase greatly when compared to similar magnitude constant contact stress. This effect may be due to the complex relationship between the rate of wear particle generation and the rate at which the particles are released from the interface. The results of these wear experiments are discussed in te...Continue Reading

Citations

Sep 21, 2004·Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine·C H ChoY Iwamoto
Sep 29, 2015·Journal of Biomedical Materials Research. Part B, Applied Biomaterials·Philip J HydeRichard M Hall
Feb 27, 2008·Journal of Biomechanical Engineering·Dong ZhaoBenjamin J Fregly
Mar 9, 2011·Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine·F LiuJ Fisher
May 11, 2016·Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine·Claire L BrockettLouise M Jennings
May 31, 2001·Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine·V C JonesJ Fisher
Feb 26, 2004·Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine·T M McGloughlinA G Kavanagh
Aug 12, 2009·Clinical Orthopaedics and Related Research·John FisherEileen Ingham
Nov 26, 2008·Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine·L KangZ-M Jin
May 19, 2010·Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine·C-H ChoY Sawae
Aug 23, 2006·Journal of Biomedical Materials Research. Part B, Applied Biomaterials·Carol J Bell, John Fisher
Feb 24, 2007·Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine·J J O'ConnorD W Murray
Oct 12, 2012·Der Orthopäde·J P KretzerS Utzschneider
Jul 21, 2000·Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine·E A ReevesJ Fisher
Dec 22, 2020·Shoulder & Elbow·Lorenzo BanciHans Rudolf Bloch

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