Baker's

Baker's cyst, also known as a popliteal cyst, is a type of fluid-filled cyst that develops at the back of the knee. It is caused by a buildup of synovial fluid, the lubricating fluid that cushions the joints. This condition is often associated with arthritis and knee injury.

Causes

The primary cause of a Baker's cyst is inflammation in the knee joint. This inflammation can be due to a variety of conditions, including osteoarthritis, rheumatoid arthritis, and gout. Injuries to the knee, such as a meniscus tear or anterior cruciate ligament (ACL) injury, can also lead to the formation of a Baker's cyst.

Symptoms

The most common symptom of a Baker's cyst is a bulge or swelling in the back of the knee. This can be accompanied by stiffness, aching, or a feeling of tightness. In some cases, the cyst may rupture, leading to sharp pain and swelling in the calf.

Diagnosis

A Baker's cyst is typically diagnosed through a physical examination and imaging tests, such as an ultrasound or magnetic resonance imaging (MRI). These tests can help to confirm the presence of a cyst and rule out other potential causes of knee pain.

Treatment

Treatment for a Baker's cyst typically involves addressing the underlying cause of the inflammation. This can include physical therapy, medication to reduce inflammation and pain, and in some cases, surgery to remove the cyst.

See also

• Knee pain
• Knee osteoarthritis
• Rheumatoid arthritis
• Gout
• Meniscus tear
• Anterior cruciate ligament injury

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