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Related Experiment Videos

Digital nerve grafts in replanted digits

Y Yamano, Y Namba, Y Hino

    The Hand
    |October 1, 1982
    PubMed
    Summary
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    Secondary nerve grafting using the lateral femoral cutaneous nerve is effective for replanted digits with severe digital nerve injury. This method offers superior sensory recovery compared to primary nerve suture, making digits functional.

    Area of Science:

    • Microsurgery
    • Reconstructive Surgery
    • Peripheral Nerve Repair

    Background:

    • Avulsion amputations often cause extensive digital nerve injury, precluding primary nerve suture.
    • Replantation of severely injured digits necessitates alternative nerve repair strategies.

    Observation:

    • Secondary nerve grafting using the lateral femoral cutaneous nerve was performed under the operating microscope for replanted digits.
    • Two-year follow-up assessed sensory recovery using two-point discrimination and sensory nerve action potentials.

    Findings:

    • The average two-point discrimination was 10.5 mm, indicating moderate sensory recovery.
    • Three-strand cable grafts using the lateral femoral cutaneous nerve yielded superior results compared to primary crushed nerve suture.
    • Sensory nerve action potentials suggested incomplete nerve regeneration maturation.

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    Implications:

    • Secondary nerve grafting with the lateral femoral cutaneous nerve provides a viable solution for functional restoration of replanted digits.
    • This technique improves sensory outcomes in cases unsuitable for primary nerve repair.
    • Even with incomplete maturation, regenerated nerves provide sufficient sensation for digit utility.