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SUDDEN-ONSET paraplegia with signs indicating a spinal cord lesion close to the thoracolumbar junction is a frequent presentation in dogs. If there is no history of trauma, fibrocartilaginous thromboembolism and intervertebral disc extrusion are the most likely causes, and these can be differentiated by imaging. One case of intradural disc herniation in a dog has been reported; this animal was euthanased (Liptak and others 2002). In human beings, intradural disc herniation is a rare condition, comprising 0.27 per cent of all disc herniations (Han and others 2009). This short communication describes a case of intradural disc herniation in a dog and its successful surgical treatment.
A 13-year-old male miniature schnauzer was presented with a history of sudden-onset paraplegia of two days' duration with no observed trauma or unusual vertebral column stress.
The dog was paraplegic, with subtle voluntary movement of the left pelvic limb; it did not exhibit back pain on palpation. Muscle tone and stretch reflexes were increased in …