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Intervertebral disc herniation in two coatis (Nasua nasua) and postoperative laminectomy membrane formation

Nina Meyerhoff, Michael Fehr, Jasmin Neßler

    Tierarztliche Praxis. Ausgabe K, Kleintiere/Heimtiere
    |December 13, 2018
    PubMed

    Insights

    Surgical treatment for intervertebral disc herniation in coatis showed promising results, with most patients recovering well. However, potential relapses highlight the need for ongoing monitoring after spinal cord decompression surgery.

    Area of Science:

    • Veterinary Neurology
    • Comparative Medicine

    Background:

    • Intervertebral disc herniation (IVDH) is a common cause of spinal cord compression in mammals.
    • Hansen type I and II IVDH are frequently observed in canine patients, but less documented in exotic species like coatis (Nasua nasua).

    Observation:

    • Two middle-aged coatis presented with chronic progressive paraparesis, diagnosed via magnetic resonance imaging (MRI) as thoracolumbar spinal cord compression from intervertebral disc herniation.
    • Surgical interventions, including hemilaminectomy, partial corpectomy, and dorsal laminectomy, were performed on the affected coatis.

    Findings:

    • Both coatis demonstrated initial positive surgical outcomes with improved mobility.
    • One coati experienced a recurrence of paraparesis 20 months post-surgery, attributed to a laminectomy membrane compressing the spinal cord, ultimately leading to euthanasia.
    • Histopathological analysis revealed spinal cord injury and degenerative disc disease comparable to canine presentations.

    Implications:

    • This case report suggests surgical intervention is a potentially safe and effective treatment for chronic intervertebral disc herniation in coatis.
    • The possibility of relapse, as seen in one case due to laminectomy membrane formation, underscores the importance of long-term follow-up and monitoring in treated coatis.

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