The cruciate ligaments connect the femur (thigh bone) to the tibia (shin bone). Cruciate ligaments are an essential part of the stability of the hind leg. Cruciate ligaments can stretch, tear or rupture completely. The injury is common in human athletes, and is caused by fast acceleration, stops, and turns that torque the joint and stress the ligament beyond its expansion capacity.

The injured leg is painful and pet’s often limp severely or carry the rear leg high.

Recommended therapies include:
Weight loss if indicated.
Strictly restricted activity for 3 months
Anti-inflammatories for relief from discomfort
Surgical repair if severe.