Osteoarthritis is the most common
form of arthritis and is associated with the
aging process. Osteoarthritis is a chronic disease
causing the deterioration of the cartilage within
a joint.
For most people, the cause of osteoarthritis
is unknown, but metabolic, genetic, chemical,
and mechanical factors play a role in its development.
Symptoms of osteoarthritis include loss of flexibility,
limited movement, and pain and swelling within
the joint. The condition results from injury
to the cartilage, which normally absorbs stress
and covers the bones, so they can move smoothly.
The cartilage of the affected joint is roughened
and becomes worn down. As the disease progresses,
the cartilage becomes completely worn down and
the bone rubs on bone. Bony spurs usually develop
around the margins of the joint. Part of the
pain results from these bone spurs, which can
restrict the joint's
movement as well.
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