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Related Experiment Videos

Principles of stable internal fixation

J Schatzker

    Canadian Journal of Surgery. Journal Canadien De Chirurgie
    |May 1, 1980
    PubMed
    Summary
    This summary is machine-generated.

    Proper internal fixation requires load sharing between bone and implants to prevent device failure. This review examines techniques for stable bone fixation, ensuring early function without compromising healing.

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    Area of Science:

    • Orthopedic surgery
    • Biomaterials science
    • Biomechanics

    Background:

    • Internal fixation devices are crucial for bone fracture repair.
    • Implant failure before bone union can compromise treatment outcomes.
    • Load transfer between bone fragments is essential for implant survival.

    Purpose of the Study:

    • To review methods of applying implants to bone for stable fixation.
    • To identify techniques that promote load sharing between implant and bone.
    • To restore early function without sacrificing fracture reduction and union.

    Main Methods:

    • Literature review of internal fixation techniques.
    • Analysis of biomechanical principles governing implant-bone interaction.
    • Evaluation of methods to achieve stable fixation and load sharing.

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    Main Results:

    • Techniques lacking load sharing between implant and bone increase stress on the device.
    • Absence of cortical contact amplifies forces, leading to pull-out, shear, or breakage.
    • Optimal application methods enhance stability and promote early functional recovery.

    Conclusions:

    • Stable internal fixation relies on effective load transfer from bone fragments to the implant.
    • Proper implant application techniques are critical to prevent premature device failure.
    • Achieving stable fixation restores early function while ensuring fracture union.