Baker's Cyst

A Baker's cyst (also known as a popliteal cyst) is a sac-like pocket of tissue that is generally filled with synovial fluid, and is found at the back of the knee joint. It is not a part of 'normal' knee anatomy. 

Baker's cysts tend to be found in people with arthritis in the knee joint, and are likely due to too much synovial fluid being produced which then 'overspills' into the surrounding tissue. However, there are other causes and your medical professional will help to determine the underlying cause. 

Symptoms of a Baker's cyst include:

  • Pain, usually in the back of the knee

  • Stiffness in the knee joint

  • Swelling in the back of the knee

Sometimes a Baker's cyst can rupture, producing significant pain and swelling in the knee and calf with a sensation of water running down the leg. These symptoms can be very similar to a blood clot in the calf so it is imperative that should you suffer with these symptoms, you are assessed by your GP or A&E department.

Treatment available here at Delta for a Baker's cyst involves removing the fluid from the sac (needle aspiration) and physiotherapy to reduce pain and improve function. Once the Baker's cyst is no longer symptomatic, we then look at addressing the underlying reason for the cyst.

Contact Us for further information on how we can help with Baker's cysts.

*The information on this page is not a substitute for medical advice and we advise people to seek help for any complaint from one of our physiotherapists or other suitably qualified clinician.

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