Popliteal Cyst

Popliteal Cyst (Baker Cyst)
What is a Baker cyst?
What causes a Baker cyst?
What are symptoms of a Baker cyst?
How is a Baker cyst diagnosed?
How is a Baker cyst treated?

Alternate Names : Popliteal cyst
Definition
Baker's cyst is an accumulation of joint fluid (synovial fluid) that forms behind the knee.

Popliteal cyst; Bulge-knee
Causes
A Baker's cyst is caused by swelling in the knee. The swelling is due to an increase in synovial fluid - the fluid that lubricates the knee joint. When pressure builds up, fluid bulges into the back of the knee.

Popliteal cyst
Baker's cyst
Reviewed last on: 5/12/2008
Thomas N. Joseph, MD, Private Practice specializing in Orthopaedics, subspecialty Foot and Ankle, Camden Bone & Joint, Camden, SC. Review provided by VeriMed Healthcare Network.

Popliteal cyst
Causes, incidence, and risk factors
A Baker's cyst may form by the connection of a normal bursa (a normal lubricating fluid sac) with the knee joint. This type is more common in children.

Popliteal cysts are found in up to 20% of asymptomatic knees (Tschirch).
Incidence of lumbar synovial cysts is less than 0.5% of individuals with back pain in the general population (Khan).
Source: Medical Disability Advisor ...

Baker's cyst - popliteal cyst
Diseases & Conditions A-Z
Baker's cysts are benign cystic tumors found on the back of the knee joint. The cyst forms with an accumulation of fluid between the 2 groups of muscles behind the knee.

Baker's cyst
A popliteal cyst (behind the knee) which communicates with the knee joint.
Bakersfield Memorial Hospital 2
The Bakersfield Memorial Hospital 2 is a hospital in Kern, California, United States.

Popliteal Cyst (Baker Cyst)
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A Baker cyst, also called a popliteal cyst, is swelling caused by knee joint fluid protruding to the back of the knee (popliteal area of the knee). Not uncommon, baker cysts can be caused by virtually any type of joint swelling (arthritis).

A likely explanation is that you have a Baker's cyst, also called a popliteal cyst. A Baker's cyst is usually the result of a problem with your knee joint, such as arthritis or a cartilage tear.

Fritschy d, Fasel J, Imbert JC et al: The popliteal cyst. Knee Surg sports Traumatol Arthrosc . 2006;14:623-8.
Torreggiani WC, Al-Ismael K, Munk PL, et al. The imaging spectrum of Baker’s (popliteal) cysts. Clin Radiol . 2002; 57:681-91.

A Baker's cyst, also called a popliteal cyst, is a fluid-filled swelling that develops at the back of the knee. It is caused by a problem with the knee joint or the tissue behind it.
The swelling may cause: ...

American Academy of Orthopaedic Surgeons and American Academy of Pediatrics (2005). Popliteal cyst section of Knee and lower leg. In LY Griffin, ed., Essentials of Musculoskeletal Care, 3rd ed., pp. 557-559.

A Baker's cyst is a pocket of fluid that forms a lump behind the knee. It is also called a popliteal cyst. See a picture of a Baker's cyst.
What causes a Baker's cyst?

Labropoulos N, Shifrin DA, Paxinos O. New insights into the development of popliteal cysts. Br J Surg. 2004; 91(10): 1313-1318.

Popliteal cyst
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use of first-line drugs (aspirin and corticosteroids for pain and inflammation) and second-line drugs (methotrexate and hydroxychloroquine to prevent joint destruction and promote remission).
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See also: Arthritis, Surgery, Injury, Rheum, Symptom