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Forelimb tic in a horse

J Beech

    Journal of the American Veterinary Medical Association
    |February 1, 1982
    PubMed
    Summary
    This summary is machine-generated.

    A horse experienced persistent limb twitches after an injury. These twitches resolved spontaneously weeks later, suggesting a transient neurological issue possibly linked to trauma.

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    Area of Science:

    • Veterinary Neurology
    • Equine Medicine
    • Trauma-induced Neurological Disorders

    Background:

    • A case study involving an 18-month-old Quarter Horse with a newly developed tic.
    • The tic began four weeks post-injury to the right forelimb, causing paresis and forceful, regular twitches.

    Observation:

    • The horse exhibited a persistent, forceful twitch of the right forelimb, affecting trunk, neck, and head movement.
    • Twitches continued during sleep but ceased under general anesthesia and xylazine sedation.
    • Numerous pharmacological interventions and local anesthesia were ineffective in alleviating the tic.

    Findings:

    • Diagnostic imaging, including electromyography and radiography of the spine and limb, revealed no abnormalities.
    • The tic resolved spontaneously 10 weeks after hospital discharge.

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  • The condition's transient nature and lack of objective findings complicated diagnosis.

    • Implications:

    • This case highlights the possibility of self-limiting neurological conditions following equine limb trauma.
    • Further investigation into the pathophysiology of trauma-induced transient neurological deficits in horses is warranted.
    • Differential diagnoses for persistent limb twitches in horses should include trauma-related transient neurological events.