By
Paul R. Greenough, FRCVS, Western College of Veterinary Medicine, University of Saskatchewan
In ankylosing spondylosis, exostoses develop on the ligament of the ventral aspect of the lumbar vertebrae, primarily in older bulls. Fracture of the exostosis and associated vertebrae causes pressure on the spinal cord, which results in severe ataxia or paralysis. There is no treatment.
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