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Related Experiment Videos

Modern prosthetic knee mechanisms.

J W Michael

    Clinical Orthopaedics and Related Research
    |April 23, 1999
    PubMed
    Summary

    This study categorizes prosthetic knees into mechanical and computer-controlled types, highlighting their benefits and drawbacks. It offers a method to match knee capabilities with amputee needs for better limb function.

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    Area of Science:

    • Prosthetics and Biomechanics
    • Rehabilitation Engineering

    Background:

    • Prosthetic knee components are broadly classified into purely mechanical devices and computer-controlled systems.
    • These systems vary in their stance phase stability and swing phase responsiveness.

    Purpose of the Study:

    • To summarize the advantages and limitations of current prosthetic knee systems.
    • To propose a method for aligning prosthetic knee capabilities with individual amputee functional levels and objectives.

    Main Methods:

    • Categorization of prosthetic knees based on control mechanisms (mechanical vs. computer-controlled).
    • Subdivision into functional classes based on stability and responsiveness.
    • Review of advantages and limitations for each category.

    Main Results:

    • Identification of key benefits and drawbacks for mechanical and computer-controlled prosthetic knees.
    • A framework for classifying prosthetic knees by functional performance.

    Conclusions:

    • Understanding the distinct biomechanical profiles of prosthetic knees is crucial.
    • A systematic approach can optimize prosthetic knee selection for individual amputees, enhancing their functional outcomes.

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