Aseptic necrosis, avascular necrosis or ischemic necrosis. They are different names for the same process that consists in the death of bone cells, therefore bone death due to a lack of blood supply. The head of the femur is a part of our body, which due to its anatomy has few blood vessels that nourish it, and also with relative ease these vessels can be injured. When the bone inside the head dies there are small fractures inside and the cartilage collapses due to lack of support provided by the dead bone below, all this leads to early osteoarthritis
Fractures and dislocations are the most frequent causes of hip necrosis, these lesions can compromise the fragile arteries that supply blood to the head of the femur. Certain substances such as corticosteroids and alcohol, as well as some blood diseases such as sickle cell disease, may favor the occlusion of nutritional forages.
In the acute phase, the main symptom is pain of an inflammatory type, although in many patients the pain may not be too evident; This will depend on the degree of inflammation of the bone and the effusion inside the hip joint. In evolved phases, the characteristic symptoms of arthrosis will appear, causing mechanical pain.
There are still many controversies regarding the treatment of this disease. The treatment will depend on many factors including: the age of the patient, the stage of the disease and the extent of the injury. The treatment can vary from avoiding support with the limb to surgery, each case should be evaluated exclusively by the specialist.