Artificial knee replacement – the last option for patients with osteoarthritis Osteoarthritis of the knee, also known as degenerative osteoarthritis, is a common clinical disease. It is the root cause of aging and degeneration of the human body and bone growth, as the common people call it, “growing bone spurs”. As we age, we gradually become gray, and age spots and wrinkles creep up on our faces, all of which are visible signs of aging. Not everyone has osteoarthritis of the knee, but only if the bone spur causes pain, swelling, and impaired movement of the knee. There are many ways to treat osteoarthritis. Depending on the patient’s specific situation, non-surgical treatment and surgical treatment are used. In our hospital, conservative treatment is generally used first, using Chinese herbal medicine for external application, fumigation and internal use and physical therapy, together with western medicine for anti-inflammatory and analgesic treatment, cartilage nutrition and joint cavity injection. If conservative treatment is ineffective in younger patients, arthroscopic debridement is feasible. If the patient is older, usually over 60 years old, has knee pain, cannot walk, and conservative treatment is ineffective, artificial knee replacement can be chosen. The surgery can relieve pain, improve function and enhance the patient’s quality of life. Typical case – simultaneous bilateral knee replacement Patient, Zhang, female, 69 years old. She had bilateral knee pain and restricted movement for more than 10 years, with gradual deformation of the joints, and was treated in several hospitals with poor results. She was diagnosed as “severe osteoarthritis of bilateral knee joints”. Recently, she underwent simultaneous bilateral knee replacement in our hospital, and was able to get out of bed 1 week after surgery.