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
Comparison of cervical sagittal alignment in normal subjects and adolescents and young adults with idiopathic scoliosis.
СтатьяСравнительное исследованиеНазвание и аннотация: Перевод в очереди
Обработка статьи · этапы, ошибки и управление
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Ошибки и ограничения
История · было → стало
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Chomienne Lucas, Battesti Guillaume, Goetsch Thibaut, Finoco Mikael, Ferrero Emmanuelle, Khalifé Marc, Odent Thierry, De Charnace Edouard, Pesenti Sebastien, Prost Solène, Blondel Benjamin, Solla Federico, Ould-Slimane Mourad, Ilharreborde Brice, Charles Yann Philippe
Аннотация
PURPOSE: The purpose was to describe cervical sagittal alignment in adolescent idiopathic scoliosis (AIS) compared to a normal group of adolescents and young adults, seeking for differences by Lenke type.
METHODS: Radiographs of 1779 AIS patients and 1115 controls were analyzed. Lenke types were determined. Spinopelvic parameters, thoracic kyphosis (TK), lumbar lordosis and sagittal vertical axis (SVA) CAM, C2, and C7 were measured. Cervical parameters included McGregor slope, C1-C2 and McGregor-C2 lordosis, C2-C7 lordosis (subdivided into cranial and caudal arches), C7 and T1 slopes. Cervical alignment patterns were classified as lordotic, kyphotic or sigmoid shapes.
RESULTS: Lenke 1, 2, 3 and 6 curves showed decreased C2-C7 and caudal arch lordosis associated with decreased C7 and T1 slopes and TK (p < 0.001) compared to normal. Cranial cervical parameters were comparable to the normal group. Lenke 5 patients demonstrated TK, C7 and T1 slopes, and cervical alignment parameters close to the normal group. In AIS, TK correlated with caudal cervical (r = 0.76) and C2-C7 lordosis (r = 0.52), but only weakly with cranial cervical parameters.
CONCLUSION: Cervical sagittal alignment compensatory changes in AIS predominantly involve the caudal cervical segment and are closely related to TK, while cranial alignment remains close to normal, supporting horizontal gaze. As opposed to other AIS types with thoracic deformity, Lenke 5 patients had no cervical compensation, and sagittal alignment was close to normal. Distinguishing normative from pathologic compensation across AIS curve types may help optimize surgical planning and restoration of TK to indirectly improve cervical alignment.
METHODS: Radiographs of 1779 AIS patients and 1115 controls were analyzed. Lenke types were determined. Spinopelvic parameters, thoracic kyphosis (TK), lumbar lordosis and sagittal vertical axis (SVA) CAM, C2, and C7 were measured. Cervical parameters included McGregor slope, C1-C2 and McGregor-C2 lordosis, C2-C7 lordosis (subdivided into cranial and caudal arches), C7 and T1 slopes. Cervical alignment patterns were classified as lordotic, kyphotic or sigmoid shapes.
RESULTS: Lenke 1, 2, 3 and 6 curves showed decreased C2-C7 and caudal arch lordosis associated with decreased C7 and T1 slopes and TK (p < 0.001) compared to normal. Cranial cervical parameters were comparable to the normal group. Lenke 5 patients demonstrated TK, C7 and T1 slopes, and cervical alignment parameters close to the normal group. In AIS, TK correlated with caudal cervical (r = 0.76) and C2-C7 lordosis (r = 0.52), but only weakly with cranial cervical parameters.
CONCLUSION: Cervical sagittal alignment compensatory changes in AIS predominantly involve the caudal cervical segment and are closely related to TK, while cranial alignment remains close to normal, supporting horizontal gaze. As opposed to other AIS types with thoracic deformity, Lenke 5 patients had no cervical compensation, and sagittal alignment was close to normal. Distinguishing normative from pathologic compensation across AIS curve types may help optimize surgical planning and restoration of TK to indirectly improve cervical alignment.