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Related Experiment Videos

Total knee arthroplasty using the kinematic rotating hinge prosthesis.

J A Shaw1, W Balcom, R B Greer

  • 1Division of Orthopedics, Milton S. Hershey Medical Center, Pennsylvania State University, Hershey 17033.

Orthopedics
|May 1, 1989
PubMed
Summary
This summary is machine-generated.

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The Kinematic Rotating Hinge total knee prosthesis shows good clinical results, with high satisfaction rates and minimal pain in both primary and revision surgeries. Long-term radiographic stability was observed, though patellar instability remains a notable complication.

Area of Science:

  • Orthopedic Surgery
  • Biomedical Engineering
  • Reconstructive Surgery

Background:

  • The Kinematic Rotating Hinge total knee prosthesis is designed for cases lacking collateral ligament stability.
  • Assessing the clinical and radiographic outcomes of this prosthesis is crucial for understanding its efficacy.

Purpose of the Study:

  • To evaluate the clinical outcomes and radiographic findings of the Kinematic Rotating Hinge total knee prosthesis in primary and revision arthroplasty.
  • To determine the rate of complications associated with this specific prosthesis.

Main Methods:

  • A retrospective review of 54 knees (46 patients) with a minimum 25-month follow-up.
  • Clinical assessment using the Brigham and Women's Hospital and Harvard Medical School knee rating system and study-defined criteria.

Related Experiment Videos

  • Radiographic review for lucent lines and aseptic loosening.

    • Main Results:

    • High rates of satisfactory clinical results: 90% in primary and 83% in revision knees.
    • Low incidence of pain postoperatively: 95% in primary and 83% in revision knees.
    • Major complication was patellar instability (21% primary, 36% revision); low rates of sepsis and no aseptic loosening observed.

    Conclusions:

    • The Kinematic Rotating Hinge prosthesis can achieve a high percentage of satisfactory clinical results, even in complex cases requiring ligamentous instability.
    • Long-term radiographic stability is achievable, but patellar instability requires careful consideration.
    • This prosthesis is a viable option for arthroplasty cases with absent collateral ligament stability.