Lubricants | |
Development and Validation of a Wear Model to Predict Polyethylene Wear in a Total Knee Arthroplasty: A Finite Element Analysis | |
Bernardo Innocenti4  Luc Labey2  Amir Kamali3  Walter Pascale1  Silvia Pianigiani1  | |
[1] IRCCS Istituto Ortopedico Galeazzi, via R. Galeazzi 4, 20161 Milano, Italy; E-Mails:;KU Leuven, Mechanical Engineering Technology TC, Kleinhoefstraat 4, 2440 GEEL, Belgium; E-Mail:;Smith & Nephew Orthopaedics Ltd. Aurora House, Harrison Way, Leamington Spa, CV31 3HL, UK; E-Mail:;BEAMS Department (Bio Electro and Mechanical Systems), Université Libre de Bruxelles, Avenue Roosevelt 50, 1050 Bruxelles, Belgium | |
关键词: wear; TKA; validated model; FEA; patello-femoral joint; | |
DOI : 10.3390/lubricants2040193 | |
来源: mdpi | |
【 摘 要 】
Ultra-high molecular weight polyethylene (UHMWPE) wear in total knee arthroplasty (TKA) components is one of the main reasons of the failure of implants and the consequent necessity of a revision procedure. Experimental wear tests are commonly used to quantify polyethylene wear in an implant, but these procedures are quite expensive and time consuming. On the other hand, numerical models could be used to predict the results of a wear test in less time with less cost. This requires, however, that such a model is not only available, but also validated. Therefore, the aim of this study is to develop and validate a finite element methodology to be used for predicting polyethylene wear in TKAs. Initially, the wear model was calibrated using the results of an experimental roll-on-plane wear test. Afterwards, the developed wear model was applied to predict patello-femoral wear. Finally, the numerical model was validated by comparing the numerically-predicted wear, with experimental results achieving good agreement.
【 授权许可】
CC BY
© 2014 by the authors; licensee MDPI, Basel, Switzerland.
【 预 览 】
Files | Size | Format | View |
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RO202003190019398ZK.pdf | 418KB | download |