Painful arthritic knees interfere with our daily activities and limit our enjoyment of life. Now there is some good news for those achy joints. A landmark study has shown that acupuncture provides pain relief and improves function for people with osteoarthritis of the knee and serves as an effective complement to standard care. The study, the largest Phase III clinical trial of acupuncture for knee osteoarthritis, was funded by NCCAM and the National Institute of Arthritis and Musculoskeletal and Skin Diseases, both components of the National Institutes of Health. Read the entire study here.