What is osteoarthritis of the knee? Osteoarthritis of the knee is a common chronic degenerative osteoarthritis disease, which is caused by aging and degenerative changes in joint cartilage, coupled with excessive loading and wear caused by osteophytes (such as bone spurs) as the main change of joint lesions, and inflammation of the synovial membrane as a secondary lesion. For this disease, we need to clearly figure out the following 5 misconceptions: 1. Osteoarthritis of the knee is not an exotic inflammatory disease. In other words, it is not an inflammation caused by bacteria, viruses, pathogens and other foreign organisms, therefore, it will not have the traditional sense of inflammation such as infection, septicemia, etc. When the disease has an acute attack, it mostly manifests as inflammation of the synovial membrane, such as joint redness, swelling, fever and pain. 2, osteoarthritis of the knee is a chronic disease. It is formed slowly over the years, never in a day or two. When the disease develops to a limit that the body can withstand, it will develop and manifest itself in the form of synovial inflammation in a very short period of time, for example, in one night, within 1 to 2 days, it shows symptoms such as joint redness, swelling, fever, pain, and difficulty in moving, etc. Therefore, the disease is a chronic disease, but sometimes acute attacks can occur, usually in the form of Acute synovitis is usually manifested in the form of acute synovitis. 3, osteoarthritis of the knee is a degenerative disease. The word “degenerative” here means that people are always aging, and the organs in the body (including bone) are subject to decline, aging, and disease. Osteoarthritis of the knee is a disease in which the bones and cartilage (some people call cartilage “brittle bone”) on the surface of the knee joint are aging, inelastic, or the knee joint is overactive and the bone and cartilage are worn out, resulting in pathological changes in the bones: osteoporosis, osteophytes, and bone spurs. The pathological changes in the cartilage are: the cartilage on the surface of the joint wears thin, breaks down, and even peels off into the joint cavity to form a foreign body in the joint (medically known as a “joint rat”), and the bone beneath the cartilage is exposed, resulting in an abnormal clicking sound in the joint when the joint is moving, and resulting in joint pain and joint instability when walking. 4, osteoarthritis of the knee is a disease that is almost impossible to escape. Therefore, in a sense, the degeneration of the knee bones, the onset of disease is a normal metabolic process that humans can not escape and avoid, osteoporosis, osteophytes and the formation of bone spurs are inevitable phenomena in the human aging process, when they develop to a certain extent and exceed the limits of the human body can endure When they develop to a certain extent and exceed the limits of what the body can tolerate, this inevitable phenomenon of aging (osteoporosis, osteophytes, etc.) will manifest itself in symptoms such as pain, swelling, and limited movement, which is what we usually call the onset of the disease, the name of which is osteoarthritis of the knee. Interestingly, there are very few people who have osteoporosis and osteophytes, but they do not have any discomfort, and at this time we cannot call it osteoarthritis of the knee, but can only regard these osteoporosis and osteophytes as a normal human aging phenomenon. 5, osteoarthritis of the knee is a treatable disease. Because osteoarthritis of the knee is a disease that is almost impossible to escape, many people then take a tolerant attitude and believe that it is a disease that can not be cured, tolerate it as long as they can, and only go to the hospital when they really can’t stand it anymore, not knowing that at this time the condition has worsened, increasing their own pain and increasing the difficulty of treatment by doctors. Unlike the onset of upper limb joints, the knee is the weight-bearing joint of the human body, and once it develops, a person cannot walk and has difficulty moving around, which can seriously affect a person’s quality of life and bring a serious burden to the family. Although osteoarthritis of the knee is a chronic disease of the elderly, it is treatable. With the rapid improvement of medical technology, some patients with osteoarthritis of the knee have achieved very satisfactory results after actively cooperating with their doctors in treatment, and patients can still travel, climb mountains, and dance, and their quality of life has been greatly improved.