Osteoarthritis
Osteoarthritis is one of the oldest and most common forms of arthritis. Known as the “wear-and-tear” kind of arthritis, Osteoarthritis is a chronic condition characterized by the breakdown of the joint’s cartilage. Cartilage is the part of the joint that cushions the ends of the bones and allows easy movement of joints. The breakdown of cartilage causes the bones to rub against each other, causing stiffness, pain and loss of movement in the joint.
Osteoarthritis is known by many different names, including degenerative joint disease, ostoarthrosis, hypertrophic arthritis and degenerative arthritis. Your doctor might choose to use one of these terms to better describe what is happening in your body, but for our purposes, we will refer to all of these as osteoarthritis.
It is thought that osteoarthritis dates
back to ancient humans. Evidence of osteoarthritis has been found in
ice-aged skeletons. Today, an estimated 27 million Americans live with
Osteoarthritis. Despite the longevity and frequency of the disease, the cause is
still not completely known and there is no cure. In fact, many different
factors may play a role in whether or not you get Osteoarthritis, including age,
obesity, injury or overuse and genetics. Your Osteoarthritis could be caused by any
one or by a combination of any of these factors.
There are several stages of osteoarthritis:
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Cartilage loses elasticity and is more easily damaged by injury or use.
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Wear of cartilage causes changes to underlying bone. The bone thickens and cysts may occur under the cartilage. Bony growths, called spurs or osteophytes, develop near the end of the bone at the affected joint.
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Bits of bone or cartilage float loosely in the joint space.
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The joint lining, or the synovium, becomes inflamed due to cartilage breakdown causing cytokines (inflammation proteins) and enzymes that damage cartilage further.
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