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Related Experiment Videos

Limited wrist arthrodesis: a laboratory study.

E M Meyerdierks, J F Mosher, F W Werner

    The Journal of Hand Surgery
    |July 1, 1987
    PubMed
    Summary

    Limited wrist fusions impact motion differently based on location. Fusions crossing the radiocarpal row cause the most significant loss of flexion/extension, while single-row fusions result in the least motion loss.

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    Permission for profits.

    Addiction (Abingdon, England)·2000

    Area of Science:

    • Orthopedic Surgery
    • Biomechanics
    • Anatomy

    Background:

    • Limited wrist fusions are surgical procedures to reduce pain and improve stability.
    • Understanding the impact of different fusion locations on wrist motion is crucial for surgical planning.

    Purpose of the Study:

    • To quantify the range of motion loss following different types of limited wrist fusions.
    • To compare the functional outcomes of radiocarpal, intercarpal, and single-row carpal fusions.

    Main Methods:

    • Eleven limited wrist fusions were performed on eight fresh-frozen cadaver wrists using an external fixator.
    • An electrogoniometer was used to measure perfusion and post-fusion range of motion (flexion/extension).
    • Percentage of motion loss was calculated and averaged for each fusion type.

    Main Results:

    • Fusions crossing the radiocarpal row resulted in an average loss of approximately 55% flexion/extension.
    • Fusions crossing the intercarpal row led to an average loss of approximately 27% flexion/extension.
    • Fusions within a single carpal row showed the least motion loss, averaging approximately 12% flexion/extension.

    Conclusions:

    • The location of a limited wrist fusion significantly influences the degree of post-operative motion loss.
    • Radiocarpal fusions result in the greatest reduction in wrist flexion/extension.
    • These findings can guide surgeons in selecting the most appropriate limited wrist fusion technique based on desired functional outcomes.

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