There are few conservative treatment options for adult patients with idiopathic scoliosis who are status post-fusion surgery. These typically include pharmacologic pain management, epidural injections, and generalized CAM treatments such as massage and chiropractic manipulation in the non-fused areas of the spine. The purpose of this study was to compare the post-treatment results in an adult post-fusion patient who wore a scoliosis activity suit for 8 months. Pain was evaluated using a quadruple visual analog scale (QVAS), while function was measured using an SRS-22r questionnaire. After 8 months of wearing the scoliosis activity suit, her pain scores improved, here SRS-22r improved, and a significant correction in radiographic Cobb angle was observed. This case report is the first to document a Cobb angle change in an adult patient wearing a scoliosis activity suit who is status post-fusion. Given that pain and dysfunction are primary reasons for scoliosis treatment in the adult population, more studies need to address the disparity between available treatments for adult scoliosis and the incidence of adult scoliosis, especially in the post-menopausal population. Future prospective studies should consider evaluating treatment effects of this suit using intent-to-treat methodology.