The patients who initially had first metatarsus toe joint,tarsus,anklebone,knee joint were 19(67.9%),5(17.9%),3(10.7%) and1(3.6%) respectively.

• 以足第一跖趾、跗骨、踝和膝关节炎为首发表现者分别为19例(占67.；9%25)、5例(占17