I have heard that knee cartilage can be replaced. My wife had surgery for her knee arthritis, but this option was not given to her. Is it true there are ways to put new cartilage in areas that have been damaged?

Yes. New surgical techniques have been developed that allow doctors to replace cartilage. However, some of these procedures are still in the experimental stage, and most of the newer techniques are only helpful when the problem is limited to a small area. When the area to be filled in is too large or the arthritis is too far advanced, other strategies are used.