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Sports Medicine

Baker`s cyst

06/06/2001

Question:

I have been diagnosed as having a Baker`s cyst on the back of my knee. I can`t feel it, but my doctor can. It`s causing severe pain when I walk. I`ve take a week`s worth of Naproxen (375 mg twice a day), but am still having pain when I walk. Am training to walk the marathon in September and don`t want to lose too much time on my trainig. What exactly is a Baker`s cyst? Is there anything else I should be doing for it? Should it be removed? What causes it? Will it always bother me? Thank you.

Answer:

A Baker`s cyst is an abnormal swelling of a bursa (a fluid- filled sac) behind the knee. We`re not sure why a Baker`s cyst forms. However, a cyst can occur when the synovial lining of the knee produces too much fluid after an injury. Baker`s cyst frequently form after the medial meniscus (cartilage on the inside of the knee) has been damaged. People complain of pain, swelling, and fullness in the area behind the knee. The initial discomfort of a Baker`s cyst may be treated by wearing an ACE bandage. Your physician may prescribe anti-inflammatory medications (e.g. Naprosyn). Occasionally the cyst needs to be drained, or an operation performed to remove the cyst. However, the cyst frequently goes away on its own.

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Response by:

The Ohio State University Darrin Bright, MD
Clinical Faculty, Team Physician
The OSU Sports Medicine Center
Department of Family Medicine
College of Medicine
The Ohio State University
Darrin   Bright, MD