What is it?
Osteoarthritis (OA) is a common degenerative joint disease that affects almost all the joints of the body. The knees are some of the most commonly affected joints, with many people experiencing at least a small degree of osteoarthritis over the age of 40. The disease is characterized by degradation of the cartilage that lines the surfaces of the joint, growth of osteophytes or bony spurs, pain, stiffness and swelling.What are the symptoms?
Stiffness in the morning that lasts less than 20 minutes and pain with movement, clicking, crepitus, swelling and a generalized reduction in joint range of motion are all common symptoms of osteoarthritis. As OA is a progressive disease, the condition is categorized into stages to help describe symptoms and guide treatment. Early stages of OA may have only mild symptoms, however as the disease progresses, a joint replacement may be required.What causes it?
While aging is the most significant risk factor for the development of OA, it’s not an inevitable outcome of growing older. Other factors that may predict the development of OA are obesity, family history, previous joint injury, high impact sporting activities and peripheral neuropathy. It is thought that abnormal wear and tear or stress on the joint is the primary cause of OA. It is also important to note that many people will have changes on X-Ray that show OA, however, will have no symptoms – which indicates that simply having OA is not a sentence for having pain.
