The role of sagittal pelvic morphology in the development of adult degenerative scoliosis

Autor: Tom P.C. Schlösser, Steven de Reuver, René M. Castelein, Moyo C. Kruyt, Philip P van der Linden
Rok vydání: 2021
Předmět:
Zdroj: European Spine Journal. 30:2467-2472
ISSN: 1432-0932
0940-6719
DOI: 10.1007/s00586-021-06924-y
Popis: Purpose Pelvic morphology dictates the alignment and biomechanics of the spine. Recent observations in different types of adolescent idiopathic scoliosis indicate that individual pelvic morphology is related to the spinal levels in which scoliosis develops: primary lumbar adolescent scoliosis is associated with a higher pelvic incidence (PI) than thoracic scoliosis and non-scoliotic controls. We hypothesize that adult degenerative scoliosis (ADS) of the lumbar spine follows the same mechanical principles and is associated with a high PI. Methods This study used an existing CT-scan database, 101 ADS patients were sex and age matched to 101 controls. The PI was measured by two observers with multi-planar reconstruction, perpendicular to the hip-axis according to a previously validated technique. Results The PI was 54.1° ± 10.8° in ADS patients and 47.7° ± 10.8° in non-scoliotic controls (p p = 0.883), the curve length (p = 0.418) or the Cobb angle (p = 0.518). Conclusions ADS normally develops de novo in the lumbar spine of patients with a higher PI than controls, similar to primary lumbar adolescent idiopathic scoliosis. This suggests a shared mechanical basis of both deformities. Pelvic morphology dictates spinal sagittal alignment, which determines the segments of the spine that are prone to develop scoliosis.
Databáze: OpenAIRE
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