Toggle Main Menu Toggle Search

ePrints

Quantification of self-polishing in vivo from explanted metal-on-metal total hip replacements

Lookup NU author(s): Professor Tom Joyce, Dr Harriet Grigg, David Langton

Downloads

Full text for this publication is not currently held within this repository. Alternative links are provided below where available.


Abstract

One of the claimed advantages of metal-on-metal total hip replacements is that they 'self-polish' in the body, however this assertion has not been supported by quantitative data. Two pairs of components, each consisting of a femoral head and acetabular cup, were obtained at revision surgery. They were subject to topographical analysis using a non-contacting profilometer. In the 'worn' regions a reduction in surface roughness was seen alongside a change in skewness values from positive to negative, while elastohydrodynamic theory suggested an improvement towards mild mixed lubrication during gait. Therefore self-polishing of metal-on-metal total hip replacements can occur in vivo. (C) 2010 Elsevier Ltd. All rights reserved.


Publication metadata

Author(s): Joyce TJ, Grigg H, Langton DJ, Nargol AVF

Publication type: Article

Publication status: Published

Journal: Tribology International

Year: 2011

Volume: 44

Issue: 5

Pages: 513-516

Print publication date: 16/04/2011

ISSN (print): 0301-679X

ISSN (electronic): 1879-2464

Publisher: Pergamon

URL: http://dx.doi.org/10.1016/j.triboint.2010.04.007

DOI: 10.1016/j.triboint.2010.04.007


Altmetrics

Altmetrics provided by Altmetric


Actions

    Link to this publication


Share