A bursa is a lubricated sac or pocket that exists within mobile tissues to facilitate a limb's movement.

bursae of the knee
Bursae (plural) are usually closely related to tendons where there is a lot of frictional movement.


Bursae of the knee

In the knee there are several bursae (plural of bursa), the main ones being:

Occasionally bursae become inflamed and distended with fluid. They can also become infected. The condition of an inflamed bursa is called bursitis.


Pain syndromes related to the patella

A syndrome is a collection of signs and symptoms that tend to occur together.



Bursae around the knee joints. Chatra PS. Indian J Radiol Imaging. 2012 Jan-Mar; 22(1): 27–30.

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