caa a22 4500 44583207X CHVBK 20180317145318.0 cr unu---uuuuu 170323e20110701xx s 000 0 eng 10.1007/s00586-011-1837-z doi (NATIONALLICENCE)springer-10.1007/s00586-011-1837-z Cervical spine sagittal alignment variations following posterior spinal fusion and instrumentation for adolescent idiopathic scoliosis [Elektronische Daten] [Federico Canavese, Katia Turcot, Vincenzo De Rosa, Geraldo de Coulon, André Kaelin] The aim of this study is to quantify the changes in the sagittal alignment of the cervical spine in patients with adolescent idiopathic scoliosis following posterior spinal fusion. Patients eligible for study inclusion included those with a diagnosis of mainly thoracic adolescent idiopathic scoliosis treated by means of posterior multisegmented hook and screw instrumentation. Pre and post-operative anterior-posterior and lateral radiographs of the entire spine were reviewed to assess the changes of cervical sagittal alignment. Thirty-two patients (3 boys, 29 girls) met the inclusion criteria for the study. The average pre-operative cervical sagittal alignment (CSA) was 4.0°±12.3° (range −30° to 40°) of lordosis. Postoperatively, the average CSA was 1.7°±11.4° (range −24° to 30°). After surgery, it was less than 20° in 27 patients (84.4%) and between 20° and 40° in 5 patients (15.6%). The results of the present study suggest that even if rod precontouring is performed and postoperative thoracic sagittal alignment is restored, improved or remains unchanged after significant correction of the deformity on the frontal plane, the inherent rigidity of the cervical spine limits changes in the CSA as the cervical spine becomes rigid over time. Springer-Verlag, 2011 Sagittal alignment nationallicence Cervical spine nationallicence Adolescent idiopathic scoliosis nationallicence Canavese Federico Pediatric Orthopaedic Service, Department of Child and Adolescent, University of Geneva Hospitals, 6, Rue Willy Donzé, 1211, Geneva 14, Switzerland aut Turcot Katia Laboratoire de Cinésiologie Willy Taillard, Faculty of Medicine, University of Geneva Hospitals, 4, rue Gabrielle-Perret-Gentil, 1211, Geneva 14, Switzerland aut De Rosa Vincenzo Pediatric Orthopaedic Service, Department of Child and Adolescent, University of Geneva Hospitals, 6, Rue Willy Donzé, 1211, Geneva 14, Switzerland aut de Coulon Geraldo Pediatric Orthopaedic Service, Department of Child and Adolescent, University of Geneva Hospitals, 6, Rue Willy Donzé, 1211, Geneva 14, Switzerland aut Kaelin André Pediatric Orthopaedic Service, Department of Child and Adolescent, University of Geneva Hospitals, 6, Rue Willy Donzé, 1211, Geneva 14, Switzerland aut European Spine Journal Springer-Verlag 20/7(2011-07-01), 1141-1148 0940-6719 20:7<1141 2011 20 586 https://doi.org/10.1007/s00586-011-1837-z text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00586-011-1837-z text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Canavese Federico Pediatric Orthopaedic Service, Department of Child and Adolescent, University of Geneva Hospitals, 6, Rue Willy Donzé, 1211, Geneva 14, Switzerland aut NATIONALLICENCE 700 1- Turcot Katia Laboratoire de Cinésiologie Willy Taillard, Faculty of Medicine, University of Geneva Hospitals, 4, rue Gabrielle-Perret-Gentil, 1211, Geneva 14, Switzerland aut NATIONALLICENCE 700 1- De Rosa Vincenzo Pediatric Orthopaedic Service, Department of Child and Adolescent, University of Geneva Hospitals, 6, Rue Willy Donzé, 1211, Geneva 14, Switzerland aut NATIONALLICENCE 700 1- de Coulon Geraldo Pediatric Orthopaedic Service, Department of Child and Adolescent, University of Geneva Hospitals, 6, Rue Willy Donzé, 1211, Geneva 14, Switzerland aut NATIONALLICENCE 700 1- Kaelin André Pediatric Orthopaedic Service, Department of Child and Adolescent, University of Geneva Hospitals, 6, Rue Willy Donzé, 1211, Geneva 14, Switzerland aut NATIONALLICENCE 773 0- European Spine Journal Springer-Verlag 20/7(2011-07-01), 1141-1148 0940-6719 20:7<1141 2011 20 586 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer