CT: Conventional x-ray examination of vertebral fracture injuries often misses microfractures and does not clearly show changes in the vertebral canal and spinal canal. Using continuous thin-section CT scans, it is possible to show parts of the vertebral body that are not clearly shown on x-ray and to understand the displacement of vertebral fractures, especially the degree of fracture blocks at the posterior edge of the vertebral body and displacement into the spinal canal, displacement of articular eminence fractures, and subluxation of vertebral plate fractures into the spinal canal. The degree of spinal stenosis and the degree of spinal disc herniation compressing the spinal cord can also be measured on CT films. Therefore, CT is very important for examining spinal cord injury combined with spinal nerve injury, and provides an important basis for the selection of surgical access and internal fixation. MRI: MRI is becoming more and more widely used in the clinical diagnosis of spinal cord injury, and its role is gradually being recognized. The longitudinal lateral tomogram can clearly show not only the displacement of vertebrae and vertebral plates to compress the spinal cord, but also the spinal cord injury. For example, the central bleeding of the spinal cord is compressed, and the site, extent and length of the transected spinal cord. It can also distinguish the spinal cord softening, post-traumatic spinal cord cyst, spinal cord cavity shape and post-traumatic adhesions and vascular changes of chronic injury changes in the spinal cord. Therefore, MRl imaging can not only show the injury of spine and spinal cord, but also diagnose the pathological changes of spinal cord at an early stage. According to the nature and extent of spinal cord injury lesions, it can judge their prognosis and guide clinical treatment.