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Baker's Cyst (Popliteal Cyst)

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Baker's cyst facts

  • A Baker's cyst is swelling caused by fluid from the knee joint protruding to the back of the knee.
  • Baker's cysts are common and can be caused by virtually any cause of joint swelling (arthritis).
  • A Baker's cyst may not cause symptoms or be associated with knee pain and/or tightness behind the knee, especially when the knee is extended or fully flexed.
  • Baker's cysts can rupture and become complicated by spread of fluid down the leg between the muscles of the calf (dissection).
  • Baker's cysts can be treated with medications, joint aspiration and cortisone injection, and surgical operation, usually arthroscopic surgery.

What is a Baker's cyst?

A Baker's cyst is swelling caused by fluid from the knee joint protruding to the back of the knee. The back of the knee is also referred to as the popliteal area of the knee. A Baker's cyst is sometimes referred to as a popliteal cyst. When an excess of knee joint fluid is compressed by the body weight between the bones of the knee joint, it can become trapped and separate from the joint to form the fluid-filled sac of a Baker's cyst. The name of the cyst is in memory of the physician who originally described the condition, the British surgeon William Morrant Baker (1839-1896).

Medically Reviewed by a Doctor on 9/12/2017

Source: MedicineNet.com
http://www.medicinenet.com/baker_cyst/article.htm

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