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Duopatellar total knee replacement: the Brigham experience

R D Scott

    The Orthopedic Clinics of North America
    |January 1, 1982
    PubMed
    Summary
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    Prosthetic knee replacements have evolved significantly over 25 years, offering pain relief and improved function in over 90% of patients. Ongoing research aims to minimize late complications and optimize future implant designs.

    Area of Science:

    • Orthopedic surgery
    • Biomedical engineering
    • Materials science

    Background:

    • Prosthetic knee arthroplasty has evolved over 25 years from hemi-arthroplasty to total knee replacements.
    • Current total knee replacements utilize metal-to-plastic bearing surfaces.
    • Significant advancements have been made, but questions remain regarding optimal implant design and materials.

    Purpose of the Study:

    • To review the evolution of prosthetic knee arthroplasty over the past 25 years.
    • To discuss current controversies and future directions in knee replacement technology.
    • To highlight the success rates and complication profiles of current knee prostheses.

    Main Methods:

    • Review of clinical outcomes and technological advancements in prosthetic knee arthroplasty over 25 years.

    Related Experiment Videos

  • Discussion of unresolved questions regarding posterior cruciate ligament retention, patellar resurfacing, and unicompartmental knee replacement.
  • Analysis of data on revision surgery rates and causes of late complications.

    • Main Results:

    • Current prosthetic knee systems can be tailored to individual patient needs, predictably relieving pain and improving function in over 90% of cases.
    • Late complications requiring revision surgery occur at a rate of approximately 1% per year of follow-up.
    • Common reasons for revision surgery include patellar problems and tibial loosening.

    Conclusions:

    • Prosthetic knee arthroplasty has shown remarkable progress, significantly improving patient outcomes.
    • Further research is needed to address ongoing controversies and optimize implant design for long-term durability.
    • Recent advances hold promise for minimizing late complications and enhancing the longevity of knee replacements.