. 1, the joint has been traumatized, such as ankle fracture is not well reset resulting in joint instability, causing osteoarthrosis. 2. Rheumatoid arthritis causes ankle osteoarthropathy. If the ankle joint osteoarthropathy is very serious and accompanied by pain and walking difficulties, you can perform ankle joint artificial joint replacement, but the long-term effect of ankle joint artificial joint replacement surgery is not as good as the effect of hip and knee artificial joint replacement, and then there is ankle joint fixation surgery, the effect can be.