Ligamentous knee injuries are common issues of today's medicine. The frequency of knee injuries is greatest in younger age, especially in professional and recreational athletes due to biomechanical factors, training mistakes, inadequate warming, and more and more sporting activities. The most common injuries are in fast sports disciplines (skiing) and in contact sports with sudden changes in directions (football, handball). Physical incapacity caused by inade-quate diagnosis and treatment of these injuries is considered a major problem that reduces the quality of life of people in the most active years. It is important to have a complete approach to the patient who has already learned from the anamnesis about the injury mechanism, de-tailed clinical tests confirm the suspicion, and radiological methods - ultrasound, computerized tomography and magnetic resonance end up showing lesions. Knee artroscopy is a gold stand-ard for treating most of the internal lesions of meniscus and ligament. It provides minimal in-vasive approach, better visualization of the wrist and easier postoperative recovery. Open op-erations are mainly reserved for bone fracture or extreme ligament lesions of the knee. In addi-tion to operative treatment, non-operative approach, knee immobilization with ortosie or gyps, for the treatment of incomplete ligament ruptures or full rupture, especially older patients, with less demanding professional and life needs are used. To restore complete functional wrists, timely and appropriate rehabilitation is of utmost importance. Operations of the operat-ed joint begin already at the second day of the operations day in order to restore the full range of movement within 6 weeks. In doing so, functional orthoses allow controlled movements while keeping injured structures. Later, lasting and long-lasting exercise, strengthening of the associated musculature, and gradual increase in the load, achieved the best results.