Scheuermann’s disease manifests itself as a thoracic or thoracolumbar kyphosis classically characterized by anterior wedging of 5 degrees or more of three adjacent thoracic vertebral bodies. Bracing has been shown to be effective in controlling a progressive curve in the adolescent patient. These adolescent patients typically present for medical attention because of pain or cosmetic deformity or both. Early treatment may be limited to observation and exercises, whereas patients who have kyphosis of up to 75 degrees and growth remaining may benefit from bracing. For the more common thoracic form with apices superior to T8, the Milwaukee brace’s effectiveness has been documented and is usually the treatment of choice. This purpose of this article is to document a case for the treatment of the thoracic form of Scheuermann’s disease (apice T6–7) with an underarm thoracolumbosacral orthosis. A custom thoracolumbosacral orthosis was measured and fabricated as an alternative to the Milwaukee brace to treat a 71-degree kyphosis with an apice of T6-T7. Initial in brace correction was 49%. At a fourteen-month follow-up, out-of-brace correction was maintained at 27% of the original kyphosis. These results indicate that a thoracolumbosacral orthosis may be a viable alternative to the Milwaukee brace in treating Scheuermann’s disease with high apices.