Why artificial joint replacement surgery? In the advanced stage of arthritis, when there are serious joint deformities and mobility disorders, or when the structure of the joints has changed due to various reasons, it is unwise to use medication alone, because the medication can only partially relieve the pain symptoms and cannot change the structural changes of the joints, whereas artificial joint replacement can achieve the purpose of relieving pain, correcting deformities, and improving the function of the joints. Artificial joint is a kind of artificial organ designed by people to save the joints that have lost their functions. Among various artificial organs, artificial joints have the best efficacy. Generally speaking, the design life of artificial joints is 50 years, and 90% of the service life can be more than 20 years. In total knee replacement, artificial biomaterials are used to replace the destroyed bone and cartilage in the knee joint. Contemporary artificial knee replacements began in the 1960s and became one of the most successful orthopedic surgeries of the 20th century. Since then, due to the continuous updating of implant materials and the improvement of surgical techniques, the surgical results have been greatly improved. Indications of artificial total knee replacement surgery Artificial total knee replacement surgery is mainly used for severe joint pain, instability, deformity, serious obstacles to daily life activities, after conservative treatment is ineffective or the effect is not significant cases, mainly including: 1. Various kinds of inflammatory arthritis of the knee joint, such as rheumatoid arthritis, osteoarthritis, hemophilic arthritis, ankylosing spondylitis, resulting in the destruction of joints, deformity and loss of function, Charcot arthritis and so on. Charcot arthritis, etc.; 2. A few traumatic osteoarthritis; 3. Osteoarthritis after failure of high tibial osteotomy; 4. Patellofemoral osteoarthritis in a few elderly people; 5. Resting infectious arthritis (including tuberculosis);