Cementless Acetabular Fixation in Patients 50 Years and Younger at 10 to 18 Years of Follow-Up
Abstract
The purpose of the study was to evaluate the 10- to 18-year follow-up of cementless acetabular fixation in patients 50 years and younger. We retrospectively reviewed a consecutive group of 118 patients (144 hips) in whom primary total hip arthroplasty had been performed by 2 surgeons using a cementless acetabular component. Two (1.4%) cementless acetabular components were revised because of aseptic loosening. Twenty-four hips (16.7%) were revised for any mechanical failure of the acetabular component mostly related to acetabular liner wear and osteolysis. The average linear wear rate was 0.19 mm per year, which was higher than our previous reports with cemented acetabular fixation. The fiber mesh ingrowth surface of the cementless acetabular component in this study was superior to cemented acetabular components in terms of fixation. However, the high rates of wear and osteolysis have led to poor overall acetabular component construct survivorship.
Keywords: cementless acetabular fixation, young, 50 years and younger, primary total hip arthroplasty, bearing surface
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Investigation performed at University of Iowa Health Care, Iowa City, and Des Moines Orthopaedic Surgeons, Des Moines, Iowa
The Conflict of Interest statement associated with this article can be found at doi:10.1016/j.arth.2011.10.020.
Supplementary material available at www.arthroplastyjournal.org.
PII: S0883-5403(11)00568-7
doi:10.1016/j.arth.2011.10.020
© 2011 Elsevier Inc. All rights reserved.
