Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/86724
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Type: | Journal article |
Title: | Wear of highly crosslinked polyethylene acetabular components: a review of RSA studies |
Author: | Callary, S. Solomon, L. Holubowycz, O. Campbell, D. Munn, Z. Howie, D. |
Citation: | Acta Orthopaedica, 2015; 86(2):159-168 |
Publisher: | Informa Healthcare |
Issue Date: | 2015 |
ISSN: | 1745-3674 1745-3682 |
Statement of Responsibility: | Stuart A Callary, Lucian B Solomon, Oksana T Holubowycz, David G Campbell, Zachary Munn, and Donald W Howie |
Abstract: | Background and purpose - Wear rates of highly crosslinked polyethylene (XLPE) acetabular components have varied considerably between different published studies. This variation is in part due to the different techniques used to measure wear and to the errors inherent in measuring the relatively low amounts of wear in XLPE bearings. We undertook a scoping review of studies that have examined the in vivo wear of XLPE acetabular components using the most sensitive method available, radiostereometric analysis (RSA). Methods - A systematic search of the PubMed, Scopus, and Cochrane databases was performed to identify published studies in which RSA was used to measure wear of XLPE components in primary total hip arthroplasty (THA). Results - 18 publications examined 12 primary THA cohorts, comprising only 260 THAs at 2-10 years of follow-up. The mean or median proximal wear rate reported ranged from 0.00 to 0.06 mm/year. However, differences in the manner in which wear was determined made it difficult to compare some studies. Furthermore, differences in RSA methodology between studies, such as the use of supine or standing radiographs and the use of beaded or unbeaded reference segments, may limit future meta-analyses examining the effect of patient and implant variables on wear rates. Interpretation - This scoping review confirmed the low wear rates of XLPE in THA, as measured by RSA. We make recommendations to enhance the standardization of reporting of RSA wear results, which will facilitate early identification of poorly performing implants and enable a better understanding of the effects of surgical and patient factors on wear. |
Keywords: | Acetabulum Humans Prosthesis Failure Polyethylene Arthroplasty, Replacement, Hip Hip Prosthesis Radiostereometric Analysis |
Rights: | Open Access - This article is distributed under the terms of the Creative Commons Attribution Noncommercial License which permits any noncommercial use, distribution, and reproduction in any medium, provided the source is credited. |
DOI: | 10.3109/17453674.2014.972890 |
Published version: | http://dx.doi.org/10.3109/17453674.2014.972890 |
Appears in Collections: | Aurora harvest 7 Orthopaedics and Trauma publications |
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hdl_86724.pdf | Published version | 115.16 kB | Adobe PDF | View/Open |
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