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The University of Southampton

Research project: The computational assesment of mechanical fixation faliure in cemented total hip arthroplasty

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A large percentage of total hip replacements use cemented fixation. This project used computational and experimental methods to better understand the failure process for cemented total hip arthroplasties, with a view to developing methods for evaluating the efficacy of medical devices at the design stage.

In particular, this study characterised the fatigue failure process for bone cement via acoustic emission monitoring of experimental specimens, revealing discontinuous damage evolution in multiple locations prior to failure. Tomographic methods were used to verify the presence of fatigue damage at these locations. Additionally, a novel computational method was described, and demonstrated to accurately predict the fatigue life of experimental specimens by incorporating internal defects.

Computational assesment

Related research groups

Bioengineering Science
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