Huge cyst knee removal ( video )

A Baker's cyst, also called a popliteal cyst, is a fluid-filled swelling that develops at the back of the knee.
It's caused when the tissue behind the knee joint becomes swollen and inflamed. The swelling and inflammation can cause:
However, sometimes a Baker's cyst may not cause any symptoms other than the fluid-filled swelling at the back of the knee.
In rare cases, a Baker's cyst can burst (rupture), resulting in fluid leaking down into your calf. This can cause sharp pain, swelling and redness in your calf.
Knee damage caused by a sports-related injury or a blow to the knee can lead to a Baker's cyst developing.
A Baker's cyst can also sometimes occur if you have a health condition such as:
Baker's cysts are more common in women than men, probably because women are more likely to develop osteoarthritis and rheumatoid arthritis. They usually develop in people aged over 40, although can affect people of any age, including children.