Reliability of the measurement of thoracolumbar burst fracture kyphosis with Cobb angle, Gardner angle, and sagittal index

摘要

Introduction Kyphotic deformity plays a key role in our evaluation of patients with thoracolumbar burst fracture, and there are several variables available for kyphotic deformity assessment, including Cobb angle, Gardner angle, and sagittal index. However, it remains unknown about intra- and inter-observer variability of sagittal index.