The suprapatellar pouch is the extension of the knee joint cavity above the patella.

suprapatellar pouch The suprapatellar pouch above the patella. The thin fold in the illustration represents the suprapatellar plica, which sometimes is more of a membrane stretching right across the pouch. When the plica exists as a complete septum, it divides the space into bursa above and pouch below.


Movement and the suprapatellar pouch

The inner lining of the pouch secretes synovial fluid, which is a lubricant, and this lubricated pouch allows the slack that permits all the structures of the knee to accommodate when the knee is bent and straightened. If the walls of the pouch become stuck down with adhesions then movement of the knee becomes limited and painful.

Suprapatellar bursa


Intraarticular arthrofibrosis of the knee alters patellofemoral contact biomechanics. Mikula JD, Slette EL, Dahl KD, Montgomery SR, Dornan GJ, O’Brien L, Turnbull TL and Hackett TR. J Exp Orthop. 2017 Dec; 4: 40.

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