The apical vertebral rotational correction of the lumbosacral fractional curve: implications for coronal alignment in degenerative lumbar scoliosis.

ABSTRACT:

Background

Degenerative lumbar scoliosis (DLS) often presents with coronal malalignment due to lumbosacral fractional (LSF) curve deformity. While apical vertebral rotation (AVR) has been recognized as a contributor to spinal deformity, its relationship with global coronal alignment correction remains unclear. This study aimed to investigate the correlation between AVR at the LSF curve and global coronal alignment in DLS patients, both pre- and post-operatively.

Methods

This retrospective study included 144 patients with DLS who underwent spinal fusion surgery with a minimum 2-year follow-up. Radiographic software was used to assess coronal balance distance (CBD), fractional apical vertebral rotation (fAVR), spinopelvic parameters, Cobb angles, and L4/L5 tilt angles. Coronal

SUBMITTER: Chaichankul C 

PROVIDER: S-EPMC12775602 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature