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Pre-clinical analysis of an acetabular cup with improved in-vivo stability and integrity

Dickinson, Alexander, Browne, Martin, Jeffers, Jonathan and Taylor, Andrew (2008) Pre-clinical analysis of an acetabular cup with improved in-vivo stability and integrity In, Prado, Marcelo and Zavaglia, Cecilia (eds.) Bioceramics 21. Trans Tech pp. 31-34. (Key Engineering Materials, 21, 396-398). (doi:10.4028/

Record type: Book Section


A finite element analysis study was conducted to produce a ceramic bearing modular
acetabular cup prosthesis design with reduced wall thickness, allowing a larger diameter bearing to
be used reducing dislocation risk but without compromising bone conservation. In addition to
geometric design, pre-assembly of the modular components was considered, so that the integrity of
the cup in-vivo would be maintained, potentially reducing fracture risk and the incidence of
squeaking. The result was a design with 4mm larger bearing diameter but 20% lower peak ceramic
stress than current technology, and an assembly technique predicted to maintain implant integrity in
the presence of dimensional variation from manufacturing. Such a design would represent an
improvement in stability and integrity in-vivo over current technology, and a necessary
improvement in prosthesis design.

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Published date: October 2008
Keywords: finite element analysis (fea), preclinical analysis, prosthesis design


Local EPrints ID: 143437
ISSN: 1013-9826
PURE UUID: 9cb3ebef-aed5-483b-8230-97b7c48922c5
ORCID for Alexander Dickinson: ORCID iD
ORCID for Martin Browne: ORCID iD

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Date deposited: 12 Apr 2010 09:21
Last modified: 18 Jul 2017 23:10

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Author: Martin Browne ORCID iD
Author: Jonathan Jeffers
Author: Andrew Taylor
Editor: Marcelo Prado
Editor: Cecilia Zavaglia

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