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Start Over Author "Costi, Kerry" Journal the journal of arthroplasty
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6. The Long-Term Wear of Retrieved McKee-Farrar Metal-on-Metal Total Hip Prostheses

Author

Chinnia Subramanian, Mark J. Pearcy, Richard W. McCalden, Donald W. Howie, Namal S. Nawana, Kerry Costi, University of South Australia, Subramanian, Chinnia, Howie, Donald, McCalden, Richard, Nawana, Namal, Costi, Kerry, and Pearcy, Mark

Subjects
Adult, Male, Reoperation, 090302 Biomechanical Engineering, wear, metal, Surface Properties, medicine.medical_treatment, Total hip replacement, Polishing, Prosthesis Design, Prosthesis, Sphericity, Postoperative Complications, medicine, Humans, Orthopedics and Sports Medicine, hip arthroplasty, Device Removal, Aged, Aged, 80 and over, Orthodontics, electron microscopy, business.industry, Metallurgy, Abrasive, Middle Aged, on, Survival Analysis, Biomechanical Phenomena, Equipment Failure Analysis, Hip arthroplasty, Microscopy, Electron, Scanning, Female, Chromium Alloys, Hip Prosthesis, prosthesis, business, Total hip arthroplasty
Abstract

Twenty-four cobalt-chrome alloy McKee-Farrar matching acetabular and femoral components were retrieved at revision total hip arthroplasty. The average time in situ was 16 years. Wear and loss of sphericity was very low. Polishing wear (type 1), fine abrasive (type 2), multidirectional dull abrasive (type 3), and unidirectional dull abrasive wear (type 4) of the articulating surfaces were identified. The mean percent area of femoral heads occupied by types 2, 3, and 4 wear was 18%, 5%, and 2%, respectively. There was no association between the type and distribution of wear and the time in situ. Impingement damage was evident on 9 implant pairs. The extent and types of wear described in this paper will be useful when analyzing the patterns of surface damage of newer designs of metal-on-metal articulations.

Published
2005

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