The rupture of the cranial cruciate ligament (CCL) is one of the most common knee pathologies in dogs and consequently the leading cause of hind limb lameness. The cranial cruciate ligament stabilizes the knee, preventing hyperextension and excessive internal rotation. The etiology of CCL rupture is not yet fully understood, but it most often develops due to a combination of biological, biomechanical, and environmental factors. Clinical signs include pain, reduced mobility, lameness, and degenerative changes such as osteoarthritis. Diagnosis is made through clinical examination, radiographic imaging, and specific tests. The choice of treatment depends on the dog's size, the severity of the injury, and the overall health status of the patient. Treatment can be either conservative or surgical. Surgical treatment involves the use of intra-articular and extra-articular techniques, as well as methods for altering the angles of joint surfaces. Rehabilitation of dogs with a CCL rupture involves a range of physical therapy methods, such as massage, electrotherapy, laser therapy, hydrotherapy, and therapeutic exercises. Physical therapy plays a crucial role in restoring normal joint function, reducing pain, increasing mobility, and strengthening muscles. The goal of rehabilitation is to tailor the rehabilitation protocol to the individual needs of the patient, taking into account all factors that affect recovery.