Summary
The prevalence of rotation of the pelvis along its length axis was noted, as was the
number of rotations towards the right or left hand side of the dog, on 7,012 conventional
hip extended radiographs, which were sent for official screening. 29.8% of the radiographs
showed a rotation the pelvis. The rotation was statistically more frequent towards
the left hand side of the dog. The number of rejected radiographs for too important
pelvis rotation was only 5.2%. The consequences of the pelvis rotation on the Norberg-Olsson
angle, on the dorsal femoral head coverage, and in the aspect of cranial acetabular
edge have to be taken into account when scoring the dog for hip dysplasia.
Keywords
Hip dysplasia - dog - radiographic screening - pelvis