[Femur head necrosis in the adult. Diagnosis, therapy, legal aspects for insurance medicine].

Early recognition and adequate therapy of necrosis of the head of the femur in adult patients in increasingly gaining importance since they considerably influence the permanent loss of function and reduction of the earning capacity of people of working age. Presently, MRT examination is the most conclusive method for the early stage of necrosis of the head of the femur. After the introduction of microsurgical methods, new therapeutic measures for avascular necrosis of the head of the femur are available, apart from conventional surgical methods to relieve the necrotic areas and the so-called metabolic irritation drilling. Direct vascular-supply, autologous, heterotopic, corticospongiose transplants in the necrotic head of the femur are suited to re-establish circulation in the necrotic area. This involves a considerable operative scope of work.