Industrial hip replacements address pain and limitation of motion caused by diseases other than infection, with the primary goal of resolving joint pain, restoring joint mobility, and occasionally correcting limb length appropriately. Since 1960, when Charnley improved the procedure, great progress has been made in the research of hip joint products and biomechanics, and now hip replacement can quickly restore activities and greatly improve the joint function, as a very successful surgery is widely carried out in the world. There are more than 100,000 surgeries per year. Indications for artificial hip replacement: 1, advanced ischemic necrosis of the femoral head (Ficat stage 3-4); 2, advanced primary osteoarthritis; 3, secondary osteoarthritis due to trauma, necrosis of the femoral head collapsed, congenital or acquired dislocation of the hip joint, hip dysplasia, traumatic dislocation of the hip joint, flat hip, infections (infection needs to be controlled first) and other factors; 4, rheumatoid arthritis Advanced stage of rheumatoid arthritis; 5. Advanced stage of ankylosing spondylitis; 6. Head-down fracture of the femoral neck in elderly patients with poor reduction or accompanied by fracture of the head of the femur, acetabular fracture and/or central dislocation; 7. Fracture of the intertrochanteric ridge in patients with extreme osteoporosis; 8. Bone tumors on the femoral head and neck, proximal femur and acetabular side of the femur; 9. Patients with failure of other surgeries on diseased hip joints; 10. Wear and tear of the hip joint after hip joint replacement, loosening of prosthesis, bone resorption or infection; 11. Infection 11, Hip tuberculosis leading to hip joint destruction.