VISCOSUPPLEMENTATION
WHAT IS VISCOSUPPLEMENTATION?
A relatively new procedure, viscosupplementation injects a preparation of hyaluronic acid into the knee joint. Hyaluronic acid is a naturally occurring substance found in the synovial (joint) fluid. It acts as a lubricant to enable bones to move smoothly over each other and as a shock absorber for joint loads.
People with osteoarthritis (”wear-and-tear” arthritis) have a lower-than-normal concentration of hyaluronic acid in their joints. Viscosupplementation may be a therapeutic option for individuals with osteoarthritis.
HOW SHOULD I PREPARE FOR THE PROCEDURE?
There is no special preparation necessary for this procedure. If there is any swelling (effusion), your physician will remove (aspirate) the excess fluids before injecting the hyaluronic acid. Usually, this can be done at the same time, with only one needle injected into the joint, although some doctors may prefer to use two separate syringes. Depending on the product used, you will receive 3 to 5 shots over several weeks.
WHAT WILL I EXPERIENCE DURING AND AFTER THE VISCOSUPPLEMENTATION?
You may notice a local reaction, such as pain, warmth, and slight swelling immediately after the shot. These symptoms generally do not last long. You may want to apply an ice pack to help ease them. For the first 48 hours after the shot, you should avoid excessive weightbearing on the leg, such as standing for long periods, jogging or heavy lifting. Hyaluronic acid does not have an immediate pain-relieving effect, however, over the course of the injections, you may notice that you have less pain and the effects may last for several months.
Viscosupplementation does not work for everyone. If your current course of medication and treatment is working, stay with it. However, if your arthritis is not responding well or if you are trying to delay an inevitable surgery, you may wish to discuss this option with your orthopaedic surgeon.