Knee replacement surgery is quite mature and has been used and promoted for more than 30 years. Therefore, if you have such a need, you can rest assured that you can go to a regular hospital for the surgery and follow the doctor’s instructions. Knee replacement is mainly used to treat severe osteoarthritis of the knee. Nowadays, knee replacement is already a very mature surgery, with high safety and good postoperative effect, and fast functional recovery, usually the next day after the operation, you can stand and walk under the guidance of the doctor and other functional exercises. Artificial knee joints, which are widely used nowadays, usually have a lifespan of 15 to 20 years under normal use. Knee replacement surgery requires high technical and environmental conditions, and requires treatment at a qualified medical institution.