Extensor contractures of the knee are one of the most severe consequences of lower limb injuries and their treatment is one of the complex problems of modern traumatology and orthopaedics. Among the consequences of musculoskeletal injuries, they are the cause of disability in 14-57% of cases. Knee extensor contractures are caused by fractures of the femur in 38-78% of cases, and other factors include fractures of the patella and condyles of the tibia, and extensive soft tissue damage to the femur and knee joint. There is also no consensus on the treatment of this pathology. Improving the methods of diagnosis, degree, nature, depth and prevalence of pathological processes remains an urgent medical task, the solution of which will make it possible to develop new approaches to improve the effectiveness of treatment of this complex pathology.