Use of routine ventrodorsal radiographic views of the pelvis to assess inclination of the wings of the sacrum in dogs.

Objective: To determine the ratio of ventral-to-dorsal transverse diameters between the wings of the sacrum on ventrodorsal radiographic views of the pelvis in large dogs and to validate the reliability of this morphometric analysis for functional interpretation.

Sample Population: Pelvic specimens from 40 large-breed dogs and radiographs of 113 large-breed dogs.

Procedure: In an anatomic and radiographic evaluation, the transverse dorsal diameter (TVDS) and transverse ventral diameter (TVV) between the wings of the sacrum were evaluated in sacrum specimens and on corresponding radiographs of the pelvis and sacrum.