Femoral head necrosis is a disease in which the blood supply to the femoral head is interrupted or damaged, causing the death and subsequent repair of bone cells and bone marrow components, which subsequently leads to structural changes in the femoral head, femoral head collapse, and joint dysfunction. Femoral head necrosis, also known as ischemic necrosis of the femoral head (AVN), is a common and intractable disease in the field of orthopedics.ONFH can be divided into two categories: traumatic and non-traumatic, with the former mainly caused by hip trauma such as femoral neck fracture and hip dislocation, and the latter in China mainly caused by the application of corticosteroids and alcohol abuse.