Geometric element analysis of fretting in a model of a modular femoral component of a hip implant

Abstract

The study utilized the geometric element analysis method to investigate the effect of three variables (head diameter, d; head material; and neck material) on the y-direction displacement, due to fretting (Δ), in a model of the head-neck connection in a modular version of the femoral component of a hip implant, subjected to a resultant hip joint force only. It was found that while d and neck material exerted a strong effect on Δ, the head material had practically no such effect. The implications of this finding for design and materials selection issues for this connection are discussed.

Publication Title

Bio-Medical Materials and Engineering

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