A novel method for measuring acetabular cup deformation in cadavers-Reference-Cited by-同舟云学术

A novel method for measuring acetabular cup deformation in cadavers

Published:2013-10-22 Issue:12 Volume:227 Page:1341-1344
ISSN:0954-4119
Container-title:Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine
language:en
Short-container-title:Proc Inst Mech Eng H

Author:

Bone Martin C¹,Dold Philipp²,Flohr Markus²,Preuss Roman²,Joyce Tom J¹,Deehan David³,Holland James³

Affiliation:

1. School of Mechanical and Systems Engineering, Newcastle University, Newcastle upon Tyne, UK

2. Medical Products Division, CeramTec GmbH, Plochingen, Germany

3. Newcastle Surgical Training Centre, Freeman Hospital, Newcastle upon Tyne, UK

Abstract

Press-fit acetabular shells are subject to compressive loading conditions upon insertion during surgery. These conditions may result in deformation of the shell, potentially adversely affecting the performance of any liner fitted within it. This technical note describes the method used to measure acetabular shell deformation in a cadaver study using an optical GOM ATOS Triple Scan system. Six custom-made titanium acetabular shells were scanned prior to and immediately following insertion into three cadavers (one shell per acetabulum). A three-dimensional colour map was created for each shell, and cross sections were taken at the rim to determine the maximum diametrical deformation. Values of between 30 and 150 µm were recorded, with the results suggesting a size-dependent response.

Publisher

SAGE Publications

Subject

Mechanical Engineering,General Medicine

Link

http://journals.sagepub.com/doi/pdf/10.1177/0954411913507706

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4. Acetabular Cup Design Influences Deformational Response in Total Hip Arthroplasty

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