Geometric element analysis of fretting in a model of a modular femoral component of a hip implant.
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 (delta), 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 delta, the head material had practically no such effect. The implications of this finding for design and materials selection issues for this connection are discussed.
Lewis
Gladius
G
Department of Mechanical Engineering, The University of Memphis, Memphis 38152-3180, USA. glewis@memphis.edu
D003198:Computer Simulation; D017076:Computer-Aided Design; D004548:Elasticity; D019544:Equipment Failure Analysis / Q000379:methods*; D005269:Femur / Q000503:physiopathology* / Q000601:surgery*; D020342:Finite Element Analysis; D017276:Friction; D006621:Hip Joint / Q000503:physiopathology* / Q000601:surgery*; D006622:Hip Prosthesis; D006801:Humans; D008422:Materials Testing / Q000379:methods; D008954:Models, Biological; D009038:Motion; D011474:Prosthesis Design / Q000379:methods*; D011475:Prosthesis Failure; D013499:Surface Properties