Hyaluronic Acid (HA) is the compound in the knee joint solution. It is sticky and highly elastic and it helps the joint, especially the knee joint bone disc surface, not to get too much pressing or bumping pressure when we walk or run. The compound also helps grease the cartilage surface when we bend or stretch the knee. It reduces friction or pressure, which in turn helps protect from degeneration of the cartilage. This results in reduction of inflammation, aching, swollen, reddening and heating up of the knee. The normal level of the knee joint solution is only 1-2 cc.
As we age, our HA is lower, especially the ones who suffers from degenerated knees. The patient with severe degenerated knee has HA that is almost dried up. At this stage, the knee degeneration symptom will spread out rapidly. Some will develop an obvious bowleg within a year.
Scientists try to find methods to slow down the drying up of the knee joint solution. They believe that if the solution can be maintained it will help slow the knee degeneration. The artificial knee joint solution was first produced 30 years ago. The effectiveness was not satisfactory. After being injected for one to two weeks, as doctors pierced into the knee to inspect, it was found that there was none left. 
In the year 1997-2004, scientists finally were able to develop the artificial kneecap solution of which the quality is close to the natural knee joint solution. The solution is produced from natural sources i.e. Rooster Combs or from Bacterial Fermentation. The application started in North America, Canada and Europe. The solution was injected into the final stage degenerated knee, and also used to inject into the hip joint and the ankle joint. The number of the patients that need to have the operation to change to the artificial knee joint was surprisingly reduced.
The three advantages of using the artificial knee joint solution are reducing pain, decreasing stiffness and can postpone the knee operation (Knee Arthroplasty Surgery) for 1 to 1.5 years.
The injection method is to directly inject the solution into the space of the knee joint. The doctor might inject the anesthetic at the skin in the area before the injection. This will reduce the pain during the injection of the solution, and this should be done only by an expert. In order to be effective, as being practiced internationally; the dose is to inject once each week for five (5) weeks in a row. At present, it is also the practice with the patient who went through the microscopy therapy of the bone.
The disadvantages can be e.g. allergies to the solution causing rashes on the injected are and high costs. When I first used it three to four years ago, the price of the solution was almost 20,000. Now as it proven to be effective, there are more manufacturers that produce the improved quality products with lower prices.
Above all, the degeneration of knees is nature to all. There are many factors that stimulate the inflammation and pain. So it needs consideration to get the treatment according to the real cause, not to depend only on the solution injection. Ask the doctor if it is worth to do so before you go for it.
