Additional file 1: Typical case 1. Fig. S9. of 3D printing–assisted preoperative plan of pedicle screw placement for middle-upper thoracic trauma: a cohort study

A 48-year-old female suffering from traffic injury. Case1. Fig. S10. Thoracic anterioposterior X-ray revealed damage of T7 and T8 pedicle morphology as well as lateral displacement. Case1. Fig. S11. CT reconstruction confirmed T7 and T8 blowout fracture of type C. Case1. Fig. S12. Magnetic resonance imaging showed upper thoracic kyphosis and spinal cord compression. Case1. Fig. S13. Upper wall of the right T6 pedicle was pierced accidentally, and then the pedicle screw could not be satisfactorily placed even by the repeated operation. Case1. Fig. S14. Intraoperative observation of the model showed intact left pedicle in the diseased T7. On the basis of the model, screws with a diameter of 4.5 mm and length 35 mm were selected and placed in the diseased vertebra. Case1. Fig. S15. Postoperative anteroposterior X-ray prompted correction of lateral displacement of the middle-upper thoracic vertebrae. Case1. Fig. S16. Postoperative lateral X-ray prompted good placement of pedicle screws. Case1. Fig. S17. Pedicle screw distribution was of level 0 at right T5, and of level 1 at left T5. Case1. Fig. S18. Pedicle screw distribution was of level 0 at right T6. Case1. Fig. S19. Pedicle screw distribution was of level 3 at the left side of the diseased T7, piercing the lateral wall, without causing adverse consequences. Case1. (ZIP 14627 kb)