Original Article
Cementless Total Hip Arthroplasty in Patients 50 Years or Younger

https://doi.org/10.1016/j.arth.2005.08.011Get rights and content

Abstract

This report examines the mean 9-year results of 100 second-generation cementless total hip arthroplasty in 91 patients 50 years or younger. The mean age at arthroplasty was 39 years (range, 14-50 years), and follow up averaged 9 years (range, 5-13 years). There were 13 revisions (7 related to polyethylene wear and/or osteolysis, 5 for instability, and 1 for infection). No femoral components were revised for loosening and none were radiographically loose. Two acetabular shells were revised for loosening secondary to extensive osteolysis. Ten-year survivorship using revision for any reason as the end point was 87.5%, using femoral component aseptic loosening as the end point was 100%, and using acetabular component aseptic loosening as the end point was 97.1%.

Section snippets

Materials and Methods

Between November 1990 and February 1996, 91 consecutive patients 50 years or younger underwent 100 total hip arthroplasties using a proximally circumferentially porous-coated, collared femoral component with distal fixation channels (Multilock Femoral Component, Zimmer, Warsaw, Ind) coupled with a cementless, hemispheric porous-coated acetabular component (HGP-II or Trilogy; Zimmer). All operations were performed at a single institution by the senior author (REW). Of the 91 patients, 4 died and

Clinical Results

The Harris Hip Scores increased from a preoperative average of 44 points (range, 16-80 points) to an average of 85 points (range, 13-100 points) at final follow-up. Of the 83 hips with greater than 5-year follow-up, 51 had an excellent result (61%); 19 (23%), good; 3 (4%), fair; and 10 (13%), poor. Of the 10 poor results, 6 were secondary to significant trochanteric bursitis, 1 was a workman's compensation patient with persistent diffuse pain, 1 was a case of fibromyalgia, 1 patient had severe

Discussion

The purpose of this study was to report the clinical and radiographic results of a consecutive series of a second-generation, cementless total hip arthroplasty with a circumferentially porous-coated, collared femoral component with distal fixation channels (Multilock, Zimmer), and a hemispheric acetabular component (Harris-Galante II or Trilogy, Zimmer) in patients 50 years or younger at minimum 5-year follow-up. At an average of 9 years, 84% of hips demonstrated good or excellent clinical

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    No benefits or funds were received in support of the study.

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