Surgical indications for ischemic necrosis of the femoral head mainly include the following aspects: 1, hip tuberculosis: hip tuberculosis causing sinusoidal, osteonecrosis, synovial tuberculosis; 2, femoral head fracture: severe femoral head fracture, head-down type fracture of the femoral head; 3, congenital dislocation of the hip, congenital dysplasia of the hip; 4, medically induced necrosis of the femoral head; 5, fracture of the neck of the femur: fracture non-healing can cause necrosis, and need to carry out arthrodesis; 6, fusion of the joints: joint fusion is mostly caused by ankylosing spondylitis, and often fused in the position of hip flexion at 90 °, with the disappearance of the joint gap, and need to carry out arthrodesis.