Cauda Equina, also known as degenerative lumbosacral stenosis, is caused by the compression of some nerves present in the dog's back. It specifically affects the last lumbar vertebra and the sacrum.
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Symptoms
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Affected dogs may exhibit sharp pain, intermittent lameness, an abnormal gait, sensitivity upon being touched near the rear quarters, a propensity to chew on the tail and hind limbs, and in advanced cases, incontinence and even paralysis.
Causes
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The compression on the nerves in the dog's back may be due to various causes ranging from ruptured discs, a narrowed spinal canal, infections, trauma, arthritis and in some cases, tumors.
Diagnosis
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Veterinarians begin by evaluating the dog's gait and watching for a pain response upon extending the hips and the tail. Further testing involves x-rays, contrast dye studies of the spine, CT scans or an MRI.
Treatment
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Treatment for mild cases consists of rest and prescription anti-inflammatories. Severe cases may require a surgical procedure known as dorsal laminectomy.
Prognosis
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Prognosis depends on the severity of the symptoms and how quickly treatment is sought. In mild cases, dogs have generally a good prognosis, whereas, in advanced cases the diagnosis is much poorer.
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