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J Arthroplasty. 2010 Sep;25(6 Suppl):26-30. doi: 10.1016/j.arth.2010.04.005. Epub 2010 May 31.

Large-head metal-on-metal total hip arthroplasty using the Durom acetabular component at minimum 1-year interval.

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  • 1University of Wisconsin Hospital and Clinics, Department of Orthopedics and Rehabilitation, Clinical Science Center, Madison, Wisconsin, USA.

Abstract

Large-head metal-on-metal total hip arthroplasty represents novel technology, and outcome data are lacking. We prospectively compared the performance of a nonmodular metal-on-metal acetabular component (Durom; Zimmer, Warsaw, IN) with a modular titanium component (Trilogy, Zimmer). All Durom components placed at our institution with minimum 1-year follow up (n = 63) were compared with an age- and sex-matched Trilogy control group (n = 100). Failure defined as revision or persistent moderate/severe groin pain was significantly higher for the Durom (11.1%) compared with the Trilogy group (0%) (P = .002). Although all acetabular components in both groups appeared radiographically stable, no significant bone ingrowth was noted at the time of Durom revisions. We could not identify any patient/surgical-related factors predictive of failure. Further study is needed to determine the scientific basis for these observations.

Copyright 2010 Elsevier Inc. All rights reserved.

PMID:
20570096
[PubMed - indexed for MEDLINE]
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