The anterior cruciate ligament (ACL) connects a dog's femur and tibia at the knee and prevents the two from moving back and forth on top of each other, according to the Veterinary Services Department of Drs. Foster & Smith. A ruptured ACL is one of the most common knee injuries in dogs. Breeds such as labrador retrievers, St. Bernards and Newfoundlands are more at risk for the injury.
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ACL injuries are common in dogs.
Cause
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A torn ACL can happen to dogs of any age. It can occur suddenly during vigorous exercise or play or may result from years of stress in overweight or large dogs, PetWave.com says.
Diagnosis
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Dogs with ACL injuries usually limp or hold up the injured leg and there may be swelling in the knee area. A vet can diagnose the problem with a physical examination and, if necessary, an X-ray.
Treatment
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ACL injuries cause serious pain and discomfort to dogs and can even lead to permanent lameness if left untreated. Surgery is usually required to repair the torn ligament.
Recovery
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According to PetWave.com, most dogs need two to three months of restricted activity after ACL surgery.
Prevention
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Dogs are less likely to suffer from a ruptured ACL if they maintain a healthy weight and if the surrounding knee muscles are strong, according to PetWave.com. Regular exercise for a dog can help meet this goal.
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