Knee osteoarthritis affects millions around the world with pain and disability. There is no known cure for arthritis, and the course of treatment is based on symptom management through medication, surgery and physical therapy. Some arthritis sufferers believe that exercise may cause more harm than good, and typically opt for arthroscopic surgery to ‘clean-out’ the knee. In addition to the cost of surgery, there are obvious risks. Despite the high number of arthroscopic surgeries for knee arthritis (also known as “debridement”), little evidence supported its efficacy.

Researchers from the University of Western Ontario in Canada performed a randomized controlled trial (the highest level of evidence) on 190 patients with moderate to severe knee osteoarthritis. Their goal was to determine if physical and medical therapy was as effective as arthroscopic surgery. The exercise program lasted for 12 weeks, including one hour per week supervised by a therapist, and daily exercise twice a day. After the 12 weeks, the patients continued their home programs unsupervised.

The researchers found that physical therapy, including Thera-Band exercises was as effective as arthroscopic surgery for treating knee osteoarthritis. Both groups had similar outcomes for pain and function after a 2 year follow-up. The results, published in the New More >