After cervical dislocation caused by the reasons?

　　Acting on the surface, the amount and the cheek of violence, can produce cervical hyperextension activities. When the violence over anterior muscles and the anterior longitudinal ligament of the tension, the cervical extreme hyperextension. Since the body is relatively stable, the following vertebra C7 do not shift with the activities of the neck, the cervical lordosis will have the level of the Department of shear force. This level of shear force and the joint action of hyperextension of violence before the ligament can tear. As the violence continued, can cause rupture disc, rear Ozeki Yang Shen, joint capsule tear, as well as in the previous section next section of the lower edge of vertebral body vertebral body while sliding backwards on the edge of the typical posterior dislocation. Dislocation segment spinal deformation and spinal cord can be moved back from the front of the vertebral and lower section of the lamina of vertebral compression and injury of the upper edge of each other. In addition, the rupture of the posterior longitudinal ligament, intervertebral disc protrusion and the yellow ligament after the fold may constitute the spinal cord injury. Violence disappears, sometimes immediately reset.