Objective—To determine the effect of weight reduction
on clinical signs of lameness among overweight
dogs with clinical and radiographic signs of hip
Design—Nonblinded prospective clinical trial.
Animals—9 client-owned dogs with radiographic
signs of hip osteoarthritis that weighed 11 to 12%
greater than their ideal body weight and were examined
because of hind limb lameness.
Procedure—Dogs were weighed, and baseline body
condition, hind limb lameness, and hip function
scores were assigned. Severity of lameness was
scored using a numerical rating scale and a visual analogue
scale. Dogs were fed a restricted-calorie diet,
with amount of diet fed calculated to provide 60% of
the calories needed to maintain the dogs' current
weights. Evaluations were repeated midway through
and at the end of the weight-loss period.
Results—Dogs lost between 11 and 18% of initial
body weight. Body weight, body condition score, and
severity of hind limb lameness were all significantly
decreased at the end of the weight-loss period.
Conclusions and Clinical Relevance—Results suggest
that in overweight dogs with hind limb lameness
secondary to hip osteoarthritis, weight reduction alone
may result in a substantial improvement in clinical lameness.
(J Am Vet Med Assoc 2000;216:1089–1091)