Intraoperative Biomechanical Assessment of Lumbar Spinal Instability: Validation of Radiographic Parameters Indicating Anterior Column Support in Lumbar Spinal Fusion

Abstract

Disc angle in flexion and ROM were the most prognostic parameters of lumbar distraction instability. Although the option of spinal arthrodesis method should be determined based on both clinical manifestation and imaging studies, the current study demonstrated that providing of anterior column support is biomechanically reasonable for degenerative spondylolisthesis with segmental kyphosis in flexion.