... dislocation 166, 174 flexion teardrop fracture 176 , 2 07 208haemorrhage 170 , 171 hangman’s fracture 176 , 203–204initial evaluation 164Jefferson fracture 1 67, 176 , 1 97 199locked facet injury 176 , 209–210mechanisms ... 164– 178 algorithm 178 cervicothoracic junction 165, 1 67 computed tomography (CT) 165, 166craniocervical junction 171 – 172 , 173 soft tissue contour 169, 170 , 171 unconscious/obtunded patient 176 – 177 lower ... patient 176 – 177 lower segment 164non-traumatic conditions 179 –194plain film projections 164, 166– 175 anteroposterior (AP) view 164,166–1 67, 168, 174 – 175 frontal 1 67 lateral view 164, 166, 1 67, 168, 174 , 175 oblique...