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Hinged total knee arthroplasty

F C Hui, R H Fitzgerald

    The Journal of Bone and Joint Surgery. American Volume
    |January 1, 1980
    PubMed
    Summary
    This summary is machine-generated.

    Hinged total knee arthroplasty improves function for most patients but carries significant complication risks, including sepsis and mechanical failure. Careful patient selection and consideration of alternatives are crucial for successful outcomes.

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    Area of Science:

    • Orthopedic Surgery
    • Biomedical Engineering

    Background:

    • Total knee arthroplasty (TKA) is a common procedure for end-stage knee arthritis.
    • Hinged TKA offers increased stability but may have unique complication profiles.

    Purpose of the Study:

    • To evaluate the functional outcomes and complication rates of hinged total knee arthroplasties.
    • To identify specific complications associated with this implant design.

    Main Methods:

    • Prospective study of 77 hinged TKAs in 67 patients.
    • Analysis of functional improvement and major complications.

    Main Results:

    • Most patients experienced improved function post-surgery.
    • A significant complication rate of 23.4% (18 knees) was observed.

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  • Complications included sepsis, loosening, patellar tendon rupture, peroneal palsy, and patellar subluxation.

    • Conclusions:

    • Hinged TKA can improve function but presents substantial risks.
    • Prosthetic failure poses challenges for limb salvage.
    • A cautious approach and consideration of less constrained arthroplasty are recommended.