Effects of body position and clinical signs on L7-S1 intervertebral foraminal area and lumbosacral angle in dogs with lumbosacral disease as measured via computed tomography.

Objective: To measure effects of dog position on L7-S1 intervertebral foraminal area and lumbosacral (LS) angle by means of computed tomography (CT) and determine whether changes in values between positions are associated with clinical signs in dogs with LS disease.

Animals: 86 dogs examined via a positional CT protocol that included flexion and extension scans of L7-S1.

Procedures: Archived CT images and medical records were reviewed.