[Characteristics of the structure and dynamics of disability in degenerative and dystrophic diseases of the hip joint].

The author has analysed the structure of disability of 142 patients with degenerative and dystrophic diseases of the hip joint (91 with coxarthrosis and 51 with osteonecrosis of the femoral head) after studying its dynamics for 3 to 10 years. Among coxarthroses the share of posttraumatic ones was especially significant, which was often due to inadequate treatment of the displaced trans-articular++ fractures of the pelvis. Attention is paid to a considerable occurrence of idiopathic osteonecrosis (up to 1/3 of the whole number of cases with degenerative and dystrophic pathology of the hip joint). A necessity of differential approach to these patients during the examination is stressed with more decisive acknowledgement of group 2 of disability at stage I and II of the disease with compulsory early surgical treatment which may prevent the development of persistent disability. At the same time the surgical treatment of coxarthrosis (intertrochanteric osteotomy), while contributing to a stabilization of the process, hardly affects the dynamics of disability.