After more than 30 years of clinical practice, the effectiveness of artificial hip arthroplasty has been fully recognized and has developed into a reliable treatment. The main purpose of arthroplasty is to relieve joint pain, correct deformities, and restore and improve joint motion. Osteoarthritis is the first indication for arthroplasty, followed by aseptic necrosis of the bone (e.g., femoral head necrosis), certain hip fractures (e.g., femoral neck fractures), rheumatoid arthritis, traumatic arthritis, benign and malignant bone tumors, and ankylosing spondylitis. In short, any disease with x-ray signs of joint destruction, with moderate to severe persistent joint pain and dysfunction, and which cannot be relieved by various other non-surgical treatments, has indications for artificial joint replacement. In patients with bilateral femoral head necrosis, bilateral hip or knee osteoarthritis, simultaneous or sequential bilateral hip or knee arthroplasty is sometimes required. In patients with severe rheumatoid arthritis and ankylosing spondylitis, multiple joint replacement is often required due to pain, stiffness, and dysfunction of multiple joints. At present, there are many reports of simultaneous or sequential artificial joint replacement of four joints in both knees and hips for one patient. In the past, the most appropriate age range for total hip and knee arthroplasty was 60-75 years. In the last decade, the indications have been expanded to include older and younger patients. However, because of the high activity level of young patients, the long postoperative life span and the limited life span of artificial joints, young patients may have to face the possibility of a second or even a third joint revision surgery after surgery. The hip revision surgery carried out by Professor Yin Feng of the Department of Orthopaedics of Oriental Hospital provides an excellent platform for the second and third joint replacement of patients. Artificial hip joint replacement is a kind of prosthesis similar to human bone joints made of metal materials with good biocompatibility and mechanical properties, and the artificial joint is surgically replaced with a joint surface damaged by disease or injury. Artificial joint replacement has the advantages of better joint movement, early mobility, and reduced complications of long-term bed rest for elderly patients.