Knee arthritis and cartilage wear has traditionally been considered an uncurable condition. In fact, the only consistently successful treatment whas a total knee replacement. Although knee replacements are a good option for severe arthritis, they require a large surgery, a prolonged recorvery course, and are usually associated with temporary, but significant, postoperative pain. Fortunately, advances in medical knowledge and technology have produced some very promising non-surgical treatments for knee arthritis. While there may not be a cure for arthritis yet, many of these treatments have shown potential to delay the need for knee replacement surgery.