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Bursitis

Bursitis is inflammation of a bursa. Bursae (plural for bursa) are lubricating sacs that overlie bony prominences to prevent friction between skin and bone and between tendons or ligaments and bones. There are approximately 160 bursae located throughout the body. The largest jointsshoulder, hip, knee, and elboware the sites of the major bursae and are the areas most commonly affected with bursitis. Symptoms of bursitis include stiffness after inactivity and pain with movement of the adjacent joint.

Anatomy

Bursae are small sacs lined with synovium, a thin membrane that secretes a clear, ...

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