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Research project: Finite element simulation of surface wear in total knee joint replacement

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Wear of total knee replacements is a major concern for long-term survivorship. In this project, an explicit, adaptively remeshing, finite element (FE) model was constructed that was capable of determining the surface wear of the tibial component after millions of gait cycles.

This model used simple wear theory, updated the surface mesh of the tibial component at pre-determined intervals, and compared well with experimental data. A second set of models, that considered different kinematic conditions, also included a measure of the relative motion between the articulating surfaces. It was found that the inclusion of these multi-directional sliding parameters were essential in order to predict the wear of total knee replacements.

Knee wear

Related research groups

Bioengineering Science
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