Triactive OA - UDGÅRDESCRIPTION TRIactive OA provides relief and can reduce pain in cases of osteoarthritis of the knee joint. It was specially developed for patients with medial or lateral osteoarthritis. In order to reduce symptoms, the foot orthosis corrects axial misalignments and provides pressure relief for the joint. The knee joint is most commonly affected by medial osteoarthritis. With a pronation wedge as outer edge reinforcement, the foot orthosis can change