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OSTEOARTHRITIS
What Is Osteoarthritis (OA)?
OA (also known as degenerative joint disease) is a non-inflammatory condition in which the shock-absorbing, smooth, gel-like cartilage in between joints is worn down, causing the remaining bones to rub abnormally against one another, resulting in pain in the involved joint.
OA is subdivided into two classes based on the cause of the condition
- Primary osteoarthritis
- Secondary osteoarthritis
Primary osteoarthritis is referred to as "wear and tear" OA. It is the more common class of OA, and may be caused by an intrinsic defect in the cartilage. Primary OA is quite prevalent in men under 45 years of age, and many of them have a family history of this condition. Excessive weight and occupational overuse also play a role in primary OA.
It is believed that several factors contribute to the development of secondary OA, including defects in joint structure, prior infection, disease and/or inflammation.
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