Abstract: An orthopedic brace for treatment of idiopathic scoliosis or curvature of the spine. A brace with an anterior panel and spaced right and left posterior panels, with substantially rigid iliac crest members at each side joining the anterior panel to the respective posterior panels. Adjustable straps are provided for interconnecting the spaced posterior panels, and a flexible pelvic band is carried at the lower ends of the panels for positioning about the pelvis of the wearer. The various additional components may be added to the basic lumbar brace as desired, including a thoracic sling, an anterior sternal upright, a chest band, and a neck band.