Clinical Results of the Wear Performance of Cross-Linked Polyethylene in Total Hip Arthroplasty:
Prospective Randomized Trial
Abstract
To investigate the clinical results of cross-linked polyethylene (CLPE) and to compare the CLPE wear against zirconia and stainless steel heads, we studied the radiographic wear after a minimum 3-year follow-up in total hip arthroplasty (THA). Ninety-four hips were randomly implanted with a 22.225-mm head cemented THA—the group of non-CLPE against zirconia and CLPE against 2 different zirconias and stainless steel. The linear wear rate was significantly lower in the group of CLPE against zirconia (0.067, 0.059 mm/y) and against stainless steel (0.068 mm/y) compared with non-CLPE against zirconia (0.170 mm/y). In the short-term results, the wear performance of CLPE against zirconia was superior to that of non-CLPE; however, it did not show a better wear rate than CLPE against stainless steel. Furthermore, long-term investigations will be necessary for understanding CLPE wear in vivo.
Keywords: wear, cross-linked polyethylene, total hip arthroplasty, clinical result, prospective randomized trial
To access this article, please choose from the options below
No benefits or funds were received in support of the study.
PII: S0883-5403(09)00209-5
doi:10.1016/j.arth.2009.05.020
© 2009 Elsevier Inc. All rights reserved.
