Knee Osteoarthritis (Portland Region)There are lots of ways that physical therapy can assist people with knee osteoarthritis, and it will vary based on the individual and likely involve multiple modes of treatment. Research supports physical therapist-supervised exercise, manual therapy, weight loss, and a variety of other interventions. If possible, it is important to try physical therapy before knee osteoarthritis is severe, because there is more potential for improvement and slowing down progression.