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  • Author or Editor: Jill L. Sammarco x
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Objective—

To determine the association between subjective and objective variables commonly used to evaluate severity of postoperative pain in dogs. Design-Prospective double-blind study.

Animals—

36 dogs with unilateral rupture of the cranial cruciate ligament that underwent surgery to stabilize the stifle.

Procedure—

Each dog was assessed to determine severity of pain before and after surgery, using various subjective and objective criteria.

Results—

Subjective measures of pain (scores for visual analogue and numerical rating scales) correlated poorly or were not correlated with heart rate, respiratory rate, blood pressure, and results of a pain threshold test. Scores for visual analogue and numerical rating scales correlated with each other and with the amount of vocalization at most time periods.

Clinical Implications—

We detected a weak association between commonly employed subjective and objective measures of pain. This indicated that some of these measurement techniques do not predictably reflect severity of postoperative pain in dogs. Therefore, clinicians should not rely too heavily on these variables when assessing severity of postoperative pain in dogs. (J Am Vet Med Assoc 1997;210:1619–1622)

Free access
in Journal of the American Veterinary Medical Association

Objective

To describe clinical features of dogs < 2 years old with rupture of the cranial cruciate ligament (CCL) and to evaluate breed, sex, and body weight as risk factors.

Design

Case-control study.

Animals

201 dogs < 2 years old with rupture of the CCL and 804 age-matched control dogs.

Procedure

Medical records were reviewed for breed, sex, and body weight, and results were compared with results of age-matched control dogs.

Results

Breed predisposition was detected for Neapolitan Mastiff, Akita, Saint Bernard, Rottweiler, Mastiff, Newfoundland, Chesapeake Bay Retriever, Labrador Retriever, and American Staffordshire Terrier. Increased risk was detected for neutered males and neutered females, compared with sexually intact males and sexually intact females, respectively. Differences in prevalence of rupture of the CCL were not detected between all males and females, sexually intact males and sexually intact females, or neutered males and neutered females. Body weights of dogs with ruptured CCL were significantly greater than those of control dogs.

Conclusions and Clinical Relevance

Several large breeds of dogs are predisposed to rupture of the CCL at a young age. (J Am Vet Med Assoc 1999;215:811–814)

Free access
in Journal of the American Veterinary Medical Association