Intervertebral disk disease in dogs with signs of back pain alone: 25 cases (1986-1993).

OBJECTIVE

To evaluate the population characteristics, historical, clinical, and diagnostic findings; and treatment outcome of dogs with thoracolumbar intervertebral disk disease (IVDD) whose only clinical signs were those of back pain.

DESIGN

Retrospective case series.

ANIMALS

Dogs with IVDD and clinical signs of back pain only, without neurologic deficits, in which survey radiography of the vertebral column and diagnostic myelographic studies were performed.

PROCEDURE

Review of the medical record, evaluation of survey radiographs of the vertebral column, evaluation of myelograms and estimation of apparent extent of spinal cord compression, and follow-up information provided by telephone contact with owners.

RESULTS

Spinal cord compression was detected on myelography in 20 of 25 (80%) dogs. Treatment included decompressive surgery in 18 of 25 (72%) dogs and all dogs underwent intervertebral disk fenestration. The condition was improved in 24 of 25 (96%) dogs after surgery.

CLINICAL IMPLICATIONS

Dogs with thoracolumbar IVDD that have clinical signs of back pain alone, without neurologic deficits, may have substantial compression of the spinal cord.