Figure 5

A 55 year-old female with atlantoaxial dislocation underwent posterior reduction and C1 pedicle-C2 pedicle internal fixation assisted by a 3D-printed life-size model. (A–D) Preoperative X-ray photographs showing a Jefferson fracture and odontoid fracture. (E) 3D life-size model showing that the vertebral artery on the left side was closer to the middle line and revealing the best screw trajectory. (I–M) Postoperative photographs showing that the screw position was satisfactory.