After having joint replacement surgery, patients want the joint to last as long as possible, but what should they do? The life span of the artificial joint depends on both the doctor and the patient. On the doctor’s side, he or she has to make sure that the surgical operation is flawless, that the type of prosthesis and the type of fixation are properly chosen, that the patient is instructed to exercise, etc., and the patient himself or herself needs to pay attention to the protection of the artificial joint in his or her long future life, so as to ensure, and even prolong, the life span of the artificial joint. Patients need to: 1. lose weight. Hip and knee joints bear most of the force of the body’s gravity, so reducing weight will reduce the pressure on the joints and reduce wear and tear. 2, exercise muscle strength. Good muscle strength not only enables patients to move freely, but also reduces joint stress to a certain extent. Normally, we should insist on exercising straight leg raise to strengthen the quadriceps muscle strength. 3, maintain normal limb alignment and gait. Normal limb alignment and gait can make the joint surface to maintain sufficient contact area, uniform force, so that the force is not too concentrated in some areas, aggravate the wear and tear. So when standing, you must ensure that the leg is straight, and when walking, you should take a big step, not curl your legs and walk. 4. Avoid a lot of and difficult activities. Patients who have had joint replacement surgery should reduce the amount of activity, especially elderly patients, which is like sitting in a chair, sitting up peacefully, the chair can be used for ten years, but after sitting up back and forth “wobble”, I am afraid that will soon “fall apart”. Usually can ride a bike, walk, swim, etc., the elderly can practice qigong, play Tai Chi, avoid long walking, standing, avoid squatting action, try not to run fast, climbing and complete some complex movements, which can reduce the occurrence of joint loosening, but also to reduce wear and tear. 5, avoid infection. Artificial joint implantation, for the human body is after all a foreign body, where the blood flow is not smooth, bacteria are easy to stay, infection occurs. Artificial joints once infection occurs, life will be greatly reduced, and sometimes even have to take out the prosthesis, the joints to dry there to control infection, so not only the early post-surgery, but also to be vigilant about infection in later life, the body has a “breeze”, the need for preventive antibiotics, such as tooth extraction invasive operations also need to pay attention to not let bacteria Invasive operations such as tooth extraction also need to pay attention to, do not let the bacteria have a chance to take advantage of. 6, prevention of osteoporosis. As I said before, osteoporosis is not conducive to the fixation of the prosthesis, and the supporting force is also weak, and the prosthesis will loosen and sink in the long term, so it is necessary to prevent and control osteoporosis from diet, medication and exercise, so as to prolong the life of the prosthesis. If the patient implements the above aspects after the operation, then the joint will generally not be a problem for ten or twenty years.