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Related Experiment Videos

Hinged total knee replacement: indications and results.

H U Cameron1, Y B Jung

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

Canadian Journal of Surgery. Journal Canadien De Chirurgie
|February 1, 1990
PubMed
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The Guepar II hinged knee replacement demonstrated good or excellent outcomes in 66.6% of cases, even with challenging indications like bone loss and instability. Radiolucency was noted with press-fit stems but not with cemented components, suggesting value in complex knee revision surgeries.

Area of Science:

  • Orthopedic Surgery
  • Biomedical Engineering

Background:

  • Hinged knee prostheses, such as the Guepar II, have been utilized for complex knee reconstructions.
  • Indications include significant bone loss, instability, and nonunion of fractures.

Purpose of the Study:

  • To evaluate the clinical outcomes and radiolucency of the Guepar II hinged knee prosthesis.
  • To assess the long-term performance of this implant in revision knee arthroplasty.

Main Methods:

  • A retrospective review of 27 Guepar II hinged knee replacements in 26 patients.
  • Follow-up ranged from 1 to 7 years (mean 3 years).
  • Indications included bone loss, nonunion, and various forms of knee instability.

Main Results:

Related Experiment Videos

  • Good or excellent results were achieved in 66.6% of the cases.
  • Two patients required revision surgery, and three experienced other implant-related complications.
  • Radiolucency was observed with press-fit stems, but not with cemented components.

    • Conclusions:

    • The Guepar II hinged knee prosthesis can provide satisfactory outcomes in complex and challenging knee revision scenarios.
    • While radiolucency is a concern with press-fit stems, cemented components showed no such issues.
    • Hinged knee designs retain a valuable role in treating severe knee pathologies where other options may fail.