The vast majority of patients who undergo total knee replacement surgery will experience a significant reduction in pain and improved function and can return to a normal life, but the surgery will not make the hip or knee function better than it did before the onset of the disease. After artificial joint replacement surgery, you need to develop good living and activity habits to maintain the stability of the joint. After surgery, you can do sports such as cycling, walking, dancing, swimming, playing golf, etc. However, strenuous sports such as running, jumping, and long-distance walking, mountain climbing, etc. are not encouraged, and high-impact contact sports should be prohibited. Under normal activities, the artificial joint will produce a small amount of wear and tear, the amount is negligible, generally can be used for 15 to 20 years, but excessive activities and weight bearing will accelerate the wear and tear of the prosthesis, may lead to loosening of the prosthesis. After the surgery, if you have decreased resistance, such as cold and fever, lower limb infections such as athlete’s foot, skin ulcers, etc., you have to be treated with anti-infective treatment as soon as possible. Osteoporosis is a common cause of prosthesis loosening. Regular measurement of bone mineral density after surgery can help prevent osteoporosis with early intervention of medication. In addition, care should be taken to prevent falls and injuries. Surgery is usually required if there are fractures around the artificial joint.