Cranial cruciate ligament rupture is one of the most common orthopedic problems in dogs and a frequent cause of lameness and pain in the hind limb. Ligament injury occurs as a result of rapid internal rotation of the joint in 20 to 50 degrees of flexion or at strong hyperextension. Mostly it is a chronic process. Beside genetic factors, the cause of cranial cruciate ligament rupture may depend on the dog's age and body weight. Rupture of the cranial cruciate ligament can be partial or complete. The diagnosis of cranial cruciate ligament rupture is based on the anamnesis and orthopedic examination, and subsequent X-ray examination, ultrasound, magnetic resonance or computed tomography. The condition can be treated conservatively or surgically, and the treatment method is determined depending on the dog’s body weight and size, age, age of the process and the owner’s financial capabilities and wishes. For smaller breeds, conservative treatment is possible, and for large breeds, usually is performed surgical treatment. The main goal of postoperative care is to strengthen and stabilize the knee joint. Also the therapy is adapted to each patient. In order to recover quickly beside ROM exercises, veterinarians recommend massage, hydrotherapy, cryotherapy and electrostimulation.