Fig. 2From: Comparison of monoplanar and polyaxial screw fixation systems in percutaneous intermediate fixation for thoracolumbar fracturesMeasurement of radiological parameters. LCA, local Cobb angle; VWA, vertebral wedge angle; ABHR, anterior body height ratio (ABHR = h2 / [(h1 + h3) / 2] × 100%)Back to article page