Vertebral body deformation causing Wobbler syndrome in a Great Dane.

This paper reports a case of cervical vertebral body deformation with gradually worsening posterior paresis in a Great Dane. The ventrocranial part of the body of the seventh cervical vertebra was severely eroded and deformed. This vertebra was tilted in relation to the sixth cervical vertebra producing a stenosis of the spinal canal which was demonstrated by myelography. Spondylolisthesis of the second type of G e a r y's classification was diagnosed. 99mTc-polyphosphate showed no concentration in the affected vertebra as would be found where bony tissues of different maturities are present, indicating the lack of effective repair. Dorsal hemilaminectomy resulted in no improvement.