Fig. 3

The average course of the aorta relative to the spine in the group TB (red points) and group NC (blue points) in Cartesian coordinate system. Compared with the normal subjects, the aorta in patients with Pott’s deformity migrated to a posterior-lateral direction relative to the vertebrae at the T5–10 levels. At the L1-3 levels, the aorta was shifted further from vertebral body