The Journal of Arthroplasty
Volume 25, Issue 5 , Pages 700-708, August 2010

Long-Term Results of a Contemporary Metal-on-Metal Total Hip Arthroplasty:

A 10-Year Follow-Up Study

  • Daniel R.P. Neumann, MD

      Affiliations

    • Orthopedic University Clinic, Private Medical University (PMU), Salzburg, Austria
    • Corresponding Author InformationReprint requests: Daniel Neumann, MD, Orthopedic University Clinic, PMU Salzburg, Muellner Hauptstrasse 48, 5020 Salzburg, Austria.
    • ,
  • Christoph Thaler, MD

      Affiliations

    • Orthopedic University Clinic, Private Medical University (PMU), Salzburg, Austria
    • ,
  • Wolfgang Hitzl, PhD

      Affiliations

    • Biostatistics Research Office, Private Medical University (PMU), Salzburg, Austria
    • ,
  • Monika Huber, MD

      Affiliations

    • Department of Pathology and Bacteriology, SMZ Otto Wagner Spital, Vienna, Austria
    • ,
  • Thomas Hofstädter, MD

      Affiliations

    • Orthopedic University Clinic, Private Medical University (PMU), Salzburg, Austria
    • ,
  • Ulrich Dorn, MD

      Affiliations

    • Orthopedic University Clinic, Private Medical University (PMU), Salzburg, Austria

Received 26 January 2008; accepted 11 May 2009. published online 13 July 2009.

Abstract 

The goal of the study was to evaluate the long-term results of a metal-on-metal articulation. We evaluated the results and histologic findings in patients who had undergone revision. One hundred total hip arthroplasties with a Lubrimet metal-on-metal articulation (Smith and Nephew, Rotkreuz, Switzerland) were implanted in 99 consecutive unselected patients in 1995 and 1996, and the results were prospectively analyzed up to a mean of 126 months postoperatively. Periprosthetic tissues of all 6 hips that had undergone revision because of aseptic loosening, mechanical failure, or periprosthetic fracture showed metallosis and extensive lymphocytic and plasma cell infiltration around the metal debris. With removal of the component because of aseptic loosening as the end point, survivorship was 98% for the stem and 96% for the cup.

Keywords: THA, metal-on-metal, long-term, prospective

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

PII: S0883-5403(09)00183-1

doi:10.1016/j.arth.2009.05.018

The Journal of Arthroplasty
Volume 25, Issue 5 , Pages 700-708, August 2010

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