It is common for Chinese people to be inherently afraid of surgery. The main reason is that they do not understand surgery. If instead one has cancer and needs surgery, generally people can gladly accept it. In fact, the process is the same, but the purpose is different. One is to save life, and the other is to improve the quality of life. If you just look at the surgery that is for the same purpose, it is much easier to accept. It is the same with artificial joint surgery. The average patient does not know much about artificial joints and often thinks that during surgery, the joint will be completely removed and fitted with a stainless steel joint, and that the limb will move unnaturally after surgery as if it were a machine part. In fact, artificial joint replacement only removes the worn and damaged joint surface, just like putting braces on a broken tooth surface, and implanting an artificial joint means putting a sleeve on the joint surface to restore a normal smooth joint surface. Arthroplasty is arguably one of the greatest breakthroughs in orthopedic surgery in this century. It is now used to treat disorders of the shoulder, elbow, wrist, interphalangeal, hip, knee and ankle joints, but total hip and knee replacements are the most common. The design and materials of artificial joints are the result of the continuous efforts of biomechanics experts, material engineers and orthopedic surgeons. They are made of metal and high-density, wear-resistant polyethylene, and are made according to the structure, shape and function of the human joint, including titanium, cobalt-chromium-molybdenum and stainless steel. In order to make the joint and bone tightly bonded and not easily loosened, bone cement can be used to fix the joint or special treatment on the artificial joint can be used to make the bone grow in.