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Risk factors for revision for early dislocation in total hip arthroplasty

Conroy, Jonathan L., Whitehouse, Sarah L., Graves, Stephen E., Pratt, Nicole L., Ryan, Philip, & Crawford, Ross W. (2008) Risk factors for revision for early dislocation in total hip arthroplasty. Journal of Arthroplasty, 23(6), pp. 867-872.

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Abstract

Risk factors were investigated for revision for dislocation in primary THAs between 1/09/1999 and 31/12/2004 as reported by the AOA NJRR.

For 65,992 primary THAs the only initial diagnoses with significantly increased relative risk (RR) of revision for dislocation compared to OA were fractured NOF (RR 2.03, p<0.001), RhA (RR 2.01, p<0.01) and AVN (RR 1.57, p<0.05).

58,109 primary THA’s for OA were investigated for effect of age-group, sex and fixation method. There were 428 (0.7%) revisions for dislocation, 369 (0.8%) with a cementless acetabulum and 59 (0.6%) with cemented, RR of 1.59 (p<0.01). There is a significantly increasing risk of revision for dislocation as head size decreases (p<0.001).

Cementless acetabuli, particularly with smaller heads, have a higher rate of revision for dislocation.

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38 citations in Web of Science®

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ID Code: 11805
Item Type: Journal Article
Keywords: dislocation, revision, total hip replacement, fixation
DOI: 10.1016/j.arth.2007.07.009
ISSN: 0883-5403
Subjects: Australian and New Zealand Standard Research Classification > MEDICAL AND HEALTH SCIENCES (110000) > CLINICAL SCIENCES (110300) > Orthopaedics (110314)
Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Current > Institutes > Institute of Health and Biomedical Innovation
Copyright Owner: Copyright 2008 Elsevier
Copyright Statement: Reproduced in accordance with the copyright policy of the publisher.
Deposited On: 11 Jan 2008
Last Modified: 29 Feb 2012 23:49

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