The Journal of Arthroplasty
Volume 23, Issue 2 , Pages 247-253, February 2008

Reconstruction of Major Segmental Acetabular Defects with an Oblong-Shaped Cementless Prosthesis:

A Long-Term Outcomes Study

  • Paul N. Abeyta, MD

      Affiliations

    • Department of Orthopaedic Surgery, University of California, San Francisco
    • Corresponding Author InformationReprint requests: Paul N. Abeyta, MD, Department of Orthopaedic Surgery, 500 Parnassus Ave, MU-320W, University of California, San Francisco, San Francisco, CA 94143-0728.
    • ,
  • Robert S. Namba, MD

      Affiliations

    • Department of Orthopaedic Surgery, Kaiser Permanente Hospital, Orange County
    • ,
  • George V. Janku, MD

      Affiliations

    • Department of Orthopaedic Surgery, Kaiser Permanente Hospital, San Francisco
    • ,
  • William R. Murray, MD

      Affiliations

    • Department of Orthopaedic Surgery, University of California, San Francisco
    • ,
  • Hubert T. Kim, MD, PhD

      Affiliations

    • Department of Orthopaedic Surgery, University of California, San Francisco

Received 29 April 2006; accepted 28 January 2007.

Abstract 

A retrospective outcomes study was performed on 25 consecutive acetabular reconstructions of major segmental defects by using an oblong-shaped cementless implant. All patients had combined acetabular defects (type III) as defined by the American Academy of Orthopaedic Surgeons classification of acetabular bone deficiency. Long-term follow-up was performed at an average of 11 years postoperatively. Clinical and radiographic outcomes were measured. Failures were defined by component revision or clear radiographic evidence of loosening. Six patients died before final evaluation, and 4 patients did not have complete radiographic data, leaving 14 patients (15 hips) for final analysis. At final follow-up, only 3 of the implants had failed and were revised. There was 1 case of a well-functioning implant with circumferential radiolucency; otherwise, there was no evidence of loosening among the remaining implants.

Key words: acetabular, segmental, defect, oblong, cementless

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

PII: S0883-5403(07)00094-0

doi:10.1016/j.arth.2007.01.024

The Journal of Arthroplasty
Volume 23, Issue 2 , Pages 247-253, February 2008

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