Femoral head ischemic necrosis is a multi-pathological mechanism that leads to localized poor blood flow to the femoral head, thus causing ischemia, necrosis of bone cells, trabecular fracture, and collapse of the femoral head. There is no significant gender difference in the occurrence of this disease, and it can occur at any age, as the disability rate is high and seriously affects the life and work of patients. The treatment of femoral head necrosis is a difficult problem facing clinical work at present, and its research has received wide attention. In China, aseptic necrosis of the femoral head is a common disease with a very large population, which is the largest in the world. According to international classification standards, aseptic necrosis of the femoral head can be divided into 5 stages