Ultra-long-term knee wear testing: an in-silico perspective


Strickland, Michael A., Knight, L.A. and Taylor, Mark (2010) Ultra-long-term knee wear testing: an in-silico perspective. At 17th Congress of the European Society of Biomechanics, Edinburgh, UK, 1pp.

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Description/Abstract

Wear is one of the many factors which concern total knee replacement (TKR) designers. With younger patients & increasing life expectancy, new TKR designs face a longer service life[1]. This has implications for conventional wear testing, typical in-vitro tests of 10 million cycles (MCycles) may represent only a fraction of this extended lifespan. Ultra-long term wear tests may reveal the extent to which TKR mechanics adapt over time; e.g. kinematics, contact area (CA), contact pressure (CP) and cross-shear (CS). It is unclear to what extent this long-term adaptation would be dependent on the test design (e.g. control method or input waveforms), as well as implant geometry. A 50MCycle test would take >1year to run in-vitro; hence in-silico methods offer a valuable complementary ‘screening tool’, to determine whether such ultra-long-term tests would be justified

Item Type: Conference or Workshop Item (Poster)
Related URLs:
Subjects: R Medicine > RD Surgery
T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Faculty of Engineering and the Environment > Engineering Sciences > Bioengineering Research Group
ePrint ID: 202761
Date Deposited: 09 Nov 2011 14:11
Last Modified: 27 Mar 2014 19:47
URI: http://eprints.soton.ac.uk/id/eprint/202761

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