Primary Total Hip Arthroplasty With Duraloc Cup in Patients Younger Than 50 Years:
A 5- to 7-Year Follow-Up Study
Abstract
We evaluated the clinical and radiographic results of 67 (64 patients) cementless Duraloc-300 cups for young active patients after a mean follow-up period of 6.2 years. The preoperative mean Harris hip score improved from 46.24 to 96.5 points at 5 years. The survivorship of the cup, using radiographically confirmed aseptic loosening as the end point, was 100% at 5 years. The mean rate of liner wear was 0.125 mm/y (00-0.39 mm/y). Acetabular osteolysis was found in 14% (9 hips) of the 67 hips, and the osteolysis is related to polyethylene wear (P = .0024) and sex (P = .001). Although there was no aseptic loosening of the components, there was a high rate of liner wear of the polyethylene liner and acetabular osteolysis.
Keywords: total hip arthroplasty, press-fit, Duraloc cup, young patients, osteolysis
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No benefits or funds were received in support of this study.
PII: S0883-5403(08)00998-4
doi:10.1016/j.arth.2008.12.002
© 2009 Elsevier Inc. All rights reserved.
