With the aging of the population, more and more people are suffering from bone and joint diseases. These patients often hear doctors say during the consultation process: Your joints are not working, get an artificial joint! So, which joint disease patients need artificial joint replacement treatment? Artificial joint replacement is one of the most effective ways to treat joint pathologies. Common clinical diseases that can cause joint lesions are: osteoarthritis (osteophytes, bone spurs, etc.), rheumatoid arthritis, aseptic necrosis of the femoral head, traumatic arthritis, benign and malignant tumors, congenital joint diseases, ankylosing spondylitis, etc. No matter what kind of disease causes the joint lesion, if the non-surgical treatment or other surgical treatment is ineffective, and the patient’s joint pain is heavy and the function of the joint is lost, making it difficult for the patient to perform even some simple daily activities (such as putting on shoes and socks, going up and down stairs, sitting in a chair, etc.), the doctor should do artificial joint replacement treatment for the patient. Some elderly people with hip fractures (femoral neck fractures) should also have artificial joint replacement treatment. This is because: on the one hand, hip fractures are difficult to heal, and even after the fracture heals, the patient is prone to aseptic necrosis of the femoral head. According to statistics, more than 65% of patients with healed hip fractures have aseptic necrosis of the femoral head. On the other hand, patients with hip fracture need to be bedridden for a long time, and in addition to unbearable joint pain and inconvenience, patients are also prone to complications such as lung infection, decubitus ulcer, urinary tract infection and deep vein embolism. These diseases can often be fatal for the elderly. In contrast, after a patient is treated with artificial joint replacement, the pain can be removed as soon as possible and the function of the joint can be restored to avoid complications.