A popliteal cyst is a fluid-filled lump at the back of the knee.

Baker's cyst
Baker's cyst

Bakerzyste2 MRT sag

 

A sign of a problem elsewhere

A Popliteal or Baker's cyst can appear suddenly and be experienced as a painful lump on the inner aspect of the crease at the back of the knee. It's appearance generally reflects a problem within the knee, such as early arthritis, when there is excessive fluid pressure inside the knee, and the pressure causes a herniation of the joint capsule through an anatomical weakness there.

Synonyms: 
Baker's Cyst
Bakers Cyst
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Short article about the anatomical factors that allow a Baker's cyst to develop.

An explanation by Dr Lars Blond as to why he uses keyhole surgery to remove a Baker's cyst.

Pain in the back of the knee

An overview with illustrations.

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FORUM DISCUSSIONS

Baker's (popliteal) cyst - SUCCESS STORIES.

Is it a Baker Cyst?

Hyaluronic Acid / bakers cyst.


CLINICAL PUBLICATIONS

Baker's Cyst. Demange MK., Rev Bras Ortop. 2011 Nov-Dec; 46(6): 630–633.

Popliteal cysts: a current review. Herman AM, Marzo JM. Orthopedics. 2014 Aug;37(8):e678-84

Baker's Cyst Filled with Hematoma at the Lower Calf Yoo M-J, Yoo J-S, Jang H-S, Hwang C-H. Knee Surg Relat Res. 2014 Dec; 26(4): 253–256.


eBook about pain in the back of the knee

eBook - Pain in the back of the knee

An easy-to-read book about the common conditions that may cause pain at the back of the knee.