A metrology solution for the orthopaedic industry

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Bills, Paul J., Brown, L., Jiang, Xiang and Blunt, Liam (2005) A metrology solution for the orthopaedic industry. Journal of Physics, Series 13. pp. 316-319. ISSN 1742-6596

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Official URL: http://www.iop.org/EJ/abstract/1742-6596/13/1/074/

DOI: 10.1088/1742-6596/13/1/074

Abstract

Total joint replacement is one of the most common elective surgical procedures performed worldwide, with an estimate of 1.5 million operations performed annually. Currently joint replacements are expected to function for 10–15 years, however, with an increase in life expectancy, and a greater call for knee replacement due to increased activity levels, there is a requirement to improve their function to offer longer term improved quality of life for patients.

The amount of wear that a joint incurs is seen as a good indicator of performance, with higher wear rates typically leading to reduced function and premature failure. New technologies and materials are pushing traditional wear assessment methods to their limits, and novel metrology solutions are required to assess wear of joints following in vivo and in vitro use. This paper presents one such measurement technique; a scanning co-ordinate metrology machine for geometrical assessment. A case study is presented to show the application of this technology to a real orthopaedic measurement problem: the wear of components in total knee replacement.

This technique shows good results and provides a basis for further developing techniques for geometrical wear assessment of total joint replacements

Item Type:	Article
Subjects:	Q Science > Q Science (General) R Medicine > RD Surgery Q Science > QC Physics
Schools:	School of Computing and Engineering School of Computing and Engineering > Centre for Precision Technologies School of Computing and Engineering > Centre for Precision Technologies > Surface Metrology Group
Related URLs:	Author Author
References:	Saikko V O and Pfaff H G 1998 Low wear and friction in alumina/alumina total hip joints Acta Orthop. Scand. 69 (5) 443-8 ChemPort Abstract \| PubMed Abstract \| Order from Infotrieve [2] Skinner H B 1999 Ceramic bearing surfaces Clin. Orthopaedics Relat. Res. 369 83-91 CrossRef Link \| Order from Infotrieve [3] Dowson D 1995 A comparative study of the performance of metallic and ceramic femoral head components in total replacement hip joints Wear 190 171-83 CrossRef Link \| Inspec Abstract \| ChemPort Abstract \| Order from Infotrieve [4] Dowson D, McCullagh P J J and Wright V 1991 An assessment of the relative importance of wear and creep in the overall performance of load-bearing total replacement knee joints UHMWPE as a biomaterial in orthopaedic surgery eds H G Willert, G H Buchhorn and P Eyerer (Hogrefe & Huber Publishers, Germany) [5] Derbyshire B, Hardaker C S, Fisher J, Dowson D and Brummitt K 1994 Assessment of the change in volume of acetabular cups using a coordinate measuring machine Proc. IMechE 208 151-8 CrossRef Link \| Order from Infotrieve [6] 2002 Implants for surgery - Wear of total knee joint prostheses - Part 1: Loading and displacement parameters for wear-testing machines with load control and corresponding environmental conditions for test BS ISO 14243-1 [7] 2000 Implants for surgery - Wear of total knee joint prostheses - Part 2: Methods of measurement BS ISO 14243-2
Depositing User:	Briony Heyhoe
Date Deposited:	20 Mar 2008 14:35
Last Modified:	26 Nov 2010 11:58
URI:	http://eprints.hud.ac.uk/id/eprint/588

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