A Longitudinal Study of Congruent Sagittal Spinal Alignment in an Adult Cohort

Abstract

Our study substantiates previous results showing that the strongest determinant of lumbar lordosis is sacral alignment. Appropriate lumbar lordosis was estimated to be 80% of sacral inclination using standing radiographs, and the proposed lumbopelvic congruity could measure stability in sagittal spinal alignment. This study provides practical data for the assessment of sagittal spinal alignment in the aging spine.