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Cryoneurectomy in the horse

L P Tate, L H Evans

    Journal of the American Veterinary Medical Association
    |September 1, 1980
    PubMed
    Summary
    This summary is machine-generated.

    Cryoneurectomy, a nerve freezing technique, prevented regeneration and neuroma formation in horses. This surgical approach showed reduced painful neuroma development in horses requiring neurectomy.

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    Area of Science:

    • Veterinary Surgery
    • Regenerative Medicine
    • Equine Podiatry

    Background:

    • Neuromas are painful, abnormal growths of nerve tissue that can develop after nerve injury or surgery.
    • Traditional neurectomy can lead to recurrent painful neuroma formation, impacting equine welfare.
    • Cryosurgery offers a potential alternative for nerve management in horses.

    Purpose of the Study:

    • To evaluate the efficacy of cryoneurectomy in preventing nerve regeneration and neuroma formation in horses.
    • To assess the incidence of painful neuroma development after cryoneurectomy in horses with prior neurectomy history.

    Main Methods:

    • Cryoneurectomy was experimentally applied to digital plantar nerves in horses using a double freeze-thaw cycle to -30°C.
    • Nerves were histologically examined at various time points (10 days to 24 weeks) for regeneration and neuroma evidence.

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  • Clinical application involved 101 nerves in 32 horses, including those with previous neurectomies and existing neuromas.

    • Main Results:

    • Experimental cryoneurectomy resulted in no nerve regeneration or neuroma formation in the terminal portion of transected nerves.
    • In horses with prior neurectomies, cryoneurectomy reduced painful neuroma formation to 15% compared to untreated controls.
    • Nerves without prior neurectomy had a 4% incidence of painful neuroma formation post-cryoneurectomy.
    • Transient neuritis was observed in one horse.

    Conclusions:

    • Cryoneurectomy is an effective method for preventing nerve regeneration and neuroma formation in equine digital nerves.
    • This technique significantly reduces the incidence of painful neuromas, particularly in cases with a history of previous nerve surgery.
    • Cryoneurectomy presents a promising surgical option for managing equine nerve conditions and improving patient outcomes.