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Related Experiment Videos

Revision of total knee replacement

H U Cameron, G A Hunter, R P Welsh

    Canadian Journal of Surgery. Journal Canadien De Chirurgie
    |July 1, 1981
    PubMed
    Summary

    Knee replacement surgery failure rates are comparable to hip replacement. Revision surgery outcomes for failed knee prostheses show mixed results, with a significant portion experiencing fair to poor outcomes.

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    Area of Science:

    • Orthopedic Surgery
    • Biomedical Engineering
    • Clinical Outcomes Research

    Background:

    • Cemented knee replacements were a common procedure between 1969 and 1978.
    • Prosthetic joint failure is a significant concern in orthopedic surgery.
    • Understanding failure modes and revision outcomes is crucial for improving patient care.

    Purpose of the Study:

    • To analyze the failure rates and outcomes of cemented knee replacements.
    • To evaluate the effectiveness of revision surgery for failed knee prostheses.
    • To compare the results of knee replacement failure with those of hip replacement.

    Main Methods:

    • Retrospective review of 661 cemented knee replacements performed between 1969 and 1978 in London and Toronto.
    • Analysis of failure modes, including infection, and outcomes of revision surgery.
    • Assessment of revised prostheses using a modified British rating system.

    Main Results:

    • A total of 13.5% of prostheses failed, with 2.9% failing due to infection.
    • Revision surgery yielded excellent or good results in 30% of cases and fair or poor results in 52%.
    • For non-revised failures, fusion was attempted in 9 of 16 patients, and 4 underwent amputation.

    Conclusions:

    • Failure in knee replacement surgery presents challenges similar to hip replacement.
    • Outcomes of revision surgery for failed cemented knee replacements are often suboptimal.
    • Patient expectations may influence the perceived success of knee replacement outcomes.

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