The Journal of Arthroplasty
Volume 23, Issue 2 , Pages 220-225, February 2008

Early Outcome of a Modular Femoral Component in Revision Total Hip Arthroplasty

  • Michael N. Kang, MD

      Affiliations

    • Corresponding Author InformationReprint requests: Stuart B. Goodman, MD, PhD, Department of Orthopaedic Surgery, Stanford University, 300 Pasteur Dr R-144, Stanford, CA 94305.
    • ,
  • James I. Huddleston, MD

      Affiliations

    • Department of Orthopaedic Surgery, Stanford University, Stanford, California
    • ,
  • Kathy Hwang, MS

      Affiliations

    • Department of Orthopaedic Surgery, Stanford University, Stanford, California
    • ,
  • Susana Imrie, PT

      Affiliations

    • Department of Orthopaedic Surgery, Stanford University, Stanford, California
    • ,
  • Stuart B. Goodman, MD, PhD

      Affiliations

    • Department of Orthopaedic Surgery, Stanford University, Stanford, California

Received 19 August 2006; accepted 7 March 2007. published online 10 October 2007.

Abstract 

Forty-six hips in 42 patients underwent revision surgery with a modular femoral component (ZMR; Zimmer, Warsaw, Ind). Thirty-nine hips with 2 to 5 years' follow-up were evaluated radiographically and clinically by the Harris hip score and WOMAC pain/stiffness/function scores. The Harris hip score improved from 47.4 to 72.3 (P < .001), with significant improvements in the WOMAC pain/stiffness/function scores. The mean subsidence was 4.4 mm, with 5 hips demonstrating significant subsidence of more than 5 mm. Four hips required reoperation, 1 due to failure of the femoral component. No early complications were encountered regarding the modular junction. Modular, cementless, extensively porous, coated femoral components have demonstrated early clinical and radiographic success. Distal intramedullary fit helps ensure initial stability; proximal modularity further maximizes fit while optimizing hip offset and length.

Key words: total hip arthroplasty, revision, modular femoral component

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

PII: S0883-5403(07)00141-6

doi:10.1016/j.arth.2007.03.006

The Journal of Arthroplasty
Volume 23, Issue 2 , Pages 220-225, February 2008

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