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Scientific Articles   |    
Twenty-three-Year Outcome of the Porous Coated Anatomic Total Hip ReplacementA Concise Follow-up of a Previous Report*
Jonathan M. Loughead, MSc, FRCS (Tr&Orth)1; Philip A. O'Connor, FRCSI (Tr&Orth)2; Kory Charron, Dipl.MET2; Cecil H. Rorabeck, MD, FRCS(C)2; Robert B. Bourne, MD, FRCS(C)2
1 Queen Elizabeth Hospital, Sheriff Hill, Gateshead, Tyne and Wear, NE9 6SX England. E-mail address: Jonathan.loughead@ghnt.nhs.uk
2 London Health Sciences, 339 Windermere Road, London, ON N6A 5A5, Canada
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Investigation performed at London Health Sciences Centre, University of Western Ontario, London, Ontario, Canada

Original Publication

Kawamura H, Dunbar MJ, Murray P, Bourne RB, Rorabeck CH. The porous coated anatomic total hip replacement. A ten to fourteen-year follow-up study of a cementless total hip arthroplasty. J Bone Joint Surg Am. 2001;83:1333-8.



Disclosure: None of the authors received payments or services, either directly or indirectly (i.e., via his or her institution), from a third party in support of any aspect of this work. One or more of the authors, or his or her institution, has had a financial relationship, in the thirty-six months prior to submission of this work, with an entity in the biomedical arena that could be perceived to influence or have the potential to influence what is written in this work. No author has had any other relationships, or has engaged in any other activities, that could be perceived to influence or have the potential to influence what is written in this work. The complete Disclosures of Potential Conflicts of Interest submitted by authors are always provided with the online version of the article.

Copyright © 2012 by The Journal of Bone and Joint Surgery, Inc.
J Bone Joint Surg Am, 2012 Jan 18;94(2):151-155. doi: 10.2106/JBJS.J.01553
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Abstract

Abstract: 

We previously reported the ten to fourteen-year results for 311 Porous Coated Anatomic total hip replacements that had been inserted by two surgeons in 279 patients. The purpose of the present report is to update that study and to report the outcome beyond twenty years. The patients were followed prospectively with clinical assessment with use of the Harris hip score and radiographic analysis, and the results were collected in a database. Two hundred and sixty-eight hips were functioning at the time of death or at the time of the latest follow-up. A total of forty-three hips (14%) underwent major revision for all causes, and an additional four hips underwent minor revision. At a mean of twenty-three years of follow-up, Kaplan-Meier analysis revealed a survival rate of 83% with revision for any reason as the end point. The survival rate was 95% for the femoral component and 88% for the acetabular component with revision for any reason as the end point. The rate of survival of the acetabular component was significantly higher in hips with a 26-mm femoral head than in those with a 32-mm femoral head (91% compared with 80%; p = 0.026).

Level of Evidence: 

Therapeutic Level IV. See Instructions for Authors for a complete description of levels of evidence.

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    References

    Accreditation Statement
    These activities have been planned and implemented in accordance with the Essential Areas and policies of the Accreditation Council for Continuing Medical Education (ACCME) through the joint sponsorship of the American Academy of Orthopaedic Surgeons and The Journal of Bone and Joint Surgery, Inc. The American Academy of Orthopaedic Surgeons is accredited by the ACCME to provide continuing medical education for physicians.
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