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Acetabular revision with a bipolar prosthesis.

H U Cameron1, Y B Jung

  • 1Department of Surgery, University of Toronto, Canada.

Clinical Orthopaedics and Related Research
|February 1, 1990
PubMed
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Bipolar prostheses offer a simple solution for acetabular revision surgery. While effective in cases with an intact ring, outcomes are less predictable when massive allografting is required.

Area of Science:

  • Orthopedic Surgery
  • Biomaterials Science

Background:

  • Acetabular revision surgery presents complex challenges, particularly in cases with bone defects.
  • Bipolar prostheses are utilized in specific acetabular revision scenarios.

Purpose of the Study:

  • To evaluate the efficacy of bipolar prostheses in acetabular revision surgery.
  • To compare outcomes between acetabular revisions with intact rings versus those requiring massive allografting.

Main Methods:

  • Retrospective analysis of two groups undergoing acetabular revision with bipolar prostheses.
  • Group 1: Intact acetabular ring with minimal grafting (15 cases).
  • Group 2: Massive allografting required (22 cases).

Main Results:

Related Experiment Videos

  • The intact ring group showed uniformly trouble-free acetabular reconstitution with minimal migration.
  • The massive allograft group had 55% good or excellent results, with potential for future migration.
  • No major migration observed in either group within the follow-up period (less than three years).

    • Conclusions:

    • Bipolar prostheses provide a simple, short-term solution for challenging acetabular revision problems.
    • Outcomes are more favorable in acetabular revisions with intact rings compared to those needing extensive allografting.