Fig 1. Cobb angle measurements for coronal deviation of the main thoracic and (thoraco)lumbar curve was performed on the coronal slice on which the curve was best visible.

Anterior-posterior axis of the endplate was automatically found as the line through the centroid of the spinal canal segmentation and centroid of the endplate segmentation. Based on the anterior-posterior axis, the coordinates of the most anterior and most posterior part of each endplate was found. Length was calculated as a summation of distances between these points for the anterior and posterior aspects of the endplate, and for each vertebra and for each disc, respectively. The total anterior length of the main thoracic curve and (thoraco)lumbar curve are illustrated in green and red on a 3-D spinal reconstruction, respectively.