Postoperative thoracic kyphosis is associated with clinically significant pain improvement at 1-year follow-up in adolescent idiopathic scoliosis: a multicenter study. - Gomez-Rice A; Núñez-Pereira S; Haddad S; Raganato R; Charles YP; Pérez-Grueso F; Kleinstück F; Obeid I; Alanay A; Pellise F; Pizones J; European Spine Study Group E (European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society, 2026)