Abstract
The reasons for this lie in the fact that the development of the degenerative-dystrophic process leads to significant violations of statics and locomotion, the severity of which depends on the prescription and severity of the disease. The strength of the hip joint muscles, especially the abductors, is sharply reduced. Due to the duration of the disease, other parts of the musculoskeletal system are involved in this process, with the formation of complex adaptive and compensatory rearrangements of not only functions, but also anatomical relationships. The changes that have occurred are estimated to limit the fulfillment of the requirements of daily life by 36%, professional activity by 67%, and social functions by 25%. So, by the time of the operation, the patient has a long-existing complex of musculoskeletal pathology. The situation is further complicated by the fact that the majority of endoprostheses are not created individually, but as a universal serial product. Thus, rehabilitation of a patient who has undergone total hip replacement surgery becomes a difficult task. It is not for nothing that, despite the elimination of pain and an increase in the amplitude of movements in the affected joint, a certain part of patients cannot walk without additional means of support, the biomechanics of walking remains impaired, and the indicators of static-dynamic function, in general, change relatively little [1.3.5.7.9.11].