It is very simple. Joint fluid therapy is replacing the natural lubricants which are seen in healthy joints.  The main purpose is increasing the lubrication of joints and cushioning. The symptoms of osteoarthritis are also reduced to a great extent. The working of the knee is like the hinge. People with osteoarthritis are helped to a great extent if their joints are lubricated.

The main problem with knee osteoarthritis is that the articular cartilage is degenerated. The smooth lining that gives coverage to the leg bones is the articular cartilage. The friction is reduced by this cartilage and freedom of movement is given. It also acts as a shock absorber. When the deterioration of cartilage takes place, the function is decreased and lot of pain is caused.

The joint fluid keeps the articular cartilage very slippery.  The fluid is also known as synovial fluid. This is a very important substance that is present in articular cartilage. Hyaluronic acid helps in reducing friction, improving lubrication as well as helps the joints in collecting and holding water. The cells are also allowed to work and move within the joint.

Due to osteoarthritis, the hyaluronic acid is depleted in the knees. With joint fluid therapy, the Hyaluronic acid that is depleted is replaced.

This therapy is also known as viscosupplementation. This is a series of hyaluronic acid injections that go directly in the synovial area of the knees. This procedure is always performed with the help of fluoroscope. This insures that the fluid injection goes directly into the synovial membrane.

Sometimes the injections are given for a week. But sometimes they are given for five weeks. If the injections are successfully given, the pain will surely go away. The therapy is repeated every six months till the treatment becomes effective.