Parametric analysis of total hip femoral prosthesis design using a modelling technique

A. W. Miles, D. M. Dall

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper describes a simple modelling technique enabling parametric analysis of femoral prosthetic design. Model femora cast in rigid polyurethane foam and prosthetic models made from various plastics are used to simulate prosthetic implants and natural bone. The model prostheses were matched to the model femora on the basis of flexural stiffness. The results of tests using a constant stem design made from two different simulated materials, namely titanium and chrome cobalt are presented. Two loading configurations were examined; one with the femur in a neutral orientation and the other with the femur in flexion and abduction. The influence of a collar to load the femoral neck was also investigated. The more flexible prostheses, simulating titanium, offer significant advantages. Stem stresses are lower and the femur is loaded more physiologically then with the more rigid chrome cobalt model prostheses. The study emphasises the importance of considering anteroposterior load in the design of femoral implants.

Original languageEnglish
Title of host publicationI Mech E Conference Publications (Institution of Mechanical Engineers)
Publisherr Inst of Mechanical Engineers, London by Mechanical Engineering Publ Ltd
Pages31-36
Number of pages6
ISBN (Print)085298538X
Publication statusPublished - 1 Dec 1984

Publication series

NameI Mech E Conference Publications (Institution of Mechanical Engineers)

ASJC Scopus subject areas

  • Engineering(all)

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