Analysis of an unexplored group of sagittal deformity patients: low pelvic tilt despite positive sagittal malalignment

摘要

In adult spinal deformity (ASD), patients increase pelvic tilt (PT) to maintain standing alignment. Previously, ASD patients with low PT and high disability were described. This study investigates this unusual population in terms of demographic, radiographic, and clinical features after three-column osteotomy (3CO).