BURSITIS
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There are over 150 bursae in the human
body. Usually bursae are present from birth, but they may form in
response to repeated pressure. Each sac contains a small amount of
synovial fluid, a clear liquid that acts as a lubricant.
Inflammation causes pain on movement. The most common site for
bursitis to occur is the shoulder (subdeltoid), but it also is seen
in the elbows (olecranon), hips (trochanteric), knees, heels (Achilles),
and toes. The affected area may be referred to as "frozen," because
movement is so limited. In the knee there are four bursae, and all
can become inflamed with overuse. |
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