Would initial thoracic correction be a key factor in orthotic intervention for adolescent idiopathic scoliosis with double-curve?

High initial thoracic correction was strongly associated with final treatment success for the thoracic curve (p = 0.009), whereas TL/L curve correction was not (p = 0.250).

Patients who achieved high thoracic correction had nearly eight times the odds of achieving high TL/L correction (OR = 7.89, 95% CI: 2.97-20.90).

Five radiographic factors were found to be associated with high correction: greater pre-orthosis lumbar lordosis, higher thoracic and TL/L supine flexibility, lesser thoracic apical sagittal wedging, and a smaller increase in rib-vertebral angle difference (rib-vertebral angle difference) from standing to supine.