作者
Jan Stolk, Dennis Janssen, Rik Huiskes, Nico Verdonschot
发表日期
2007/3/1
期刊
Clinical Orthopaedics and Related Research (1976-2007)
卷号
456
页码范围
138-147
出版商
LWW
简介
We developed a finite element model to preclinically test cemented hip implants for damage accumulation, including cement crack formation, creep, and stem migration. Using this model, we simulated the mechanical failure processes of four cemented total hip arthroplasty implants (Lubinus SPII, Mueller Curved, Exeter and Charnley, all with known clinical results) during cyclic normal walking and stair-climbing loads. These four implants were selected to ascertain whether the simulation predicted greater damage development around clinically inferior stems, whether clinically inferior designs could be identified by an initial stress analysis without the prediction of cement damage, and whether the simulation could predict high implant subsidence rates in combination with minimal cement damage. Based on the predicted cement crack patterns and crack formation rates, the simulation correctly identified the clinically …
引用总数
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学术搜索中的文章
J Stolk, D Janssen, R Huiskes, N Verdonschot - Clinical Orthopaedics and Related Research (1976 …, 2007