[Various forms of lesions of the femur head in Legg-Perthes disease].

The authors described small-focal, limited and disseminated forms of the femoral head affection. They differ in localization and extent of the necrotization foci and don't transform themselves in the course of disease. Comparison of anatomical data, roentgenologic and angiographic examinations allows to infer that the described forms of affection are conditioned by the blockade of the vascular basins of the intraosseous circulatory system of the epiphysis. It has been stated also that the disease duration, its outcomes are determined mainly by the femoral head affection form and a child's age. The high-risk groups have been singled out with consideration for the probability of formation of joint deformation and the conservative treatment.