TRIactive Select OADESCRIPTION The supportive orthotic blank TRIactive Select OA is designed for non surgical treatment of patients with medial or lateral osteoarthritis of the knee (varus or valgus osteoarthritis) and helps to relieve symptoms and reduce pain. After individual adjustment by the medical retailer, the custom foot orthosis has a correcting effect on existing axis misalignments and stabilizes the muscles and ligaments from the bottom up. This intervention