How can we find knee osteoarthritis early?

Osteoarthritis is a very slow disease, high incidence in the elderly group, especially the knee is more obvious, even in the civil "old legs old old" argument. However, due to the course of osteoarthritis is very slow, the symptoms are subtle, it is easy to ignore the early symptoms of the performance, thus ignoring the early prevention.
Knee joint activity is limited when the activities, especially up and down the stairs, the knee pain or can not afford the body's strength, should be considered is not the occurrence of knee osteoarthritis.

Joint stiffness in the morning or after a long time without exercise, there will be a clear sense of joint stiffness, once the knee after a similar situation, but also consider timely medical treatment.
Articular activity occurs when click sound or other fricative joints articulate when click sound or other fricative sounds, indicating that osteoarthritis has occurred for some time, the reason is due to articular cartilage degeneration, peeling, resulting in subchondral bone exposure, When walking, the exposed bone collides with each other, and there is a click or other fricative sound.
Arthroplasty The deformation of the joint is caused by the synovial membrane of the late osteoarthritis. From the anatomical structure, many nerve endings are distributed on the synovium. These nerve endings are used as pain sensors, and the pain caused by osteoarthritis Information to the cerebral cortex, and then the cerebral cortex will naturally be issued to the synovial membrane instructions, so that the secretion of more synovial fluid in order to achieve the lubrication and nourishing the joints, resulting in increased joint fluid accumulation, but will cause Joint swelling, which leads to increased pain.