Fig. 6From: Plasticity of vertebral wedge deformities in skeletally immature patients with adolescent idiopathic scoliosis after posterior corrective surgeryAn example of vertebral height (VH). VH was defined as the distance between each intersection point and the approximated plane of the upper vertebral end plate (D, d). VHR was defined as the ratio of the VH of the concave side to that of the convex side (e.g. VHR at anterior = d/D)Back to article page