Modular Ceramic Bearings on a CFRP Total Hip Replacement Femoral Stem

Abstract:

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A modular ceramic femoral head was selected for use as the bearing on a novel carbon fibre reinforced plastic (CFRP) total hip replacement femoral stem. Mechanical testing was required to validate this novel combination of materials for load bearing implant application. The Ceramic Head-CFRP Stem Taper interface was tested under axial fatigue loads according to BS/ISO 7206-5, followed by static loading to failure. The assembly survived the fatigue loads and exceeded the required FDA post-fatigue strength by 50%. In parallel, the test was simulated in a Finite Element Analysis study, resulting in recommendations for the adhesive bonding technique used to attach the modular head to the CFRP stem to further improve its strength.

Info:

Periodical:

Key Engineering Materials (Volumes 361-363)

Main Theme:

Edited by:

Guy Daculsi and Pierre Layrolle

Pages:

799-802

DOI:

10.4028/www.scientific.net/KEM.361-363.799

Citation:

A. Dickinson et al., "Modular Ceramic Bearings on a CFRP Total Hip Replacement Femoral Stem", Key Engineering Materials, Vols. 361-363, pp. 799-802, 2008

Online since:

November 2007

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Price:

$35.00

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