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Cruciate ligament disease

Also known as: CrCL tear · ACL injury

Quick answer

Tear or rupture of the cranial cruciate ligament in the dog's knee, a common cause of sudden hind-limb lameness, especially in active or overweight dogs. See your vet within 24 hours of sudden hind-limb lameness, especially after exercise.

Definition

Tear or rupture of the cranial cruciate ligament in the dog's knee, a common cause of sudden hind-limb lameness, especially in active or overweight dogs.

Symptoms

  • Sudden hind-leg lameness after activity
  • Toe-touching or non-weight-bearing
  • Swelling around the knee
  • Stiffness after rest
  • Both knees may be affected over time

When to see a vet

See your vet within 24 hours of sudden hind-limb lameness, especially after exercise. Partial tears often worsen without treatment.

Related guides & tools

Frequently Asked Questions

What is Cruciate ligament disease?
Tear or rupture of the cranial cruciate ligament in the dog's knee, a common cause of sudden hind-limb lameness, especially in active or overweight dogs.
What are the symptoms of cruciate ligament disease?
Common signs include Sudden hind-leg lameness after activity, Toe-touching or non-weight-bearing, Swelling around the knee, Stiffness after rest. This is not a complete list — individual pets vary. See linked guides for fuller context.
When should I see a vet about cruciate ligament disease?
See your vet within 24 hours of sudden hind-limb lameness, especially after exercise. Partial tears often worsen without treatment.