Fig. 7From: Plasticity of vertebral wedge deformities in skeletally immature patients with adolescent idiopathic scoliosis after posterior corrective surgeryAn example of coronal disc angle (CDA). CDA (α) was defined as the angle in the coronal plane of the lower vertebral body adjacent to the disc (a), between the approximated planes of the lower endplate of the upper vertebral body (b) and the upper endplate of the lower vertebral body (c) adjacent to the discBack to article page