Fig. 1
a Sagittal image of the whole spine demonstrates an ankylosing spine and unclear intervertebral discs. b, c Spinal fracture at the cervico-thoracic junction zone. Coronal sections show a fracture line going from the right C6 vertebral body to the left C6/7 intervertebral space (arrow heads) (b) and a gap at the left C6/7 facet (c). d Note that all other cervical facets including atlanto-axial joints (filled arrow heads) are ankylosed, and incongruity of atlanto-occipital joints (open arrow heads) are not observed. e–g A chance fracture at the thoraco-lumbar junction zone. This coronal section shows a fracture line that goes from the left T12 vertebral body to the right T12/L1 intervertebral space (arrows) (e). Left and right parasagittal section (f, g) demonstrates fracture lines through the pedicle (f) and lamina (g)