The reliability and diagnostic value of radiographic criteria in sagittal spine deformities: comparison of the vertebral wedge ratio to the segmental cobb angle.

Study Design: A prospective, radiographic cohort study.

Objectives: This study assessed the radiographic reliability and diagnostic value of the vertebral wedge ratio (WR) to the more segmental Cobb angle (CA) regarding sagittal spine deformities.

Summary Of Background Data: The use of the CA has been used to assist in the radiographic diagnosis of various sagittal spine deformities.