Immobilization:

• Hard collar if possible.
• Do not force into a collar if spine is locked.
• Instead use sandbags, towel rolls, and tape. 

Closed reduction by spine specialist (often in the ED):

• Halo device

          Or

• Gardner-Wells tongs.  This involves placing a traction device into the skull and increasing hanging weights at 15 minute intervals until serial radiographs document reduction. 
• Neurologic deficit may worsen after closed reduction (from disc protrusion), so serial neurologic exams are crucial. 

These injuries are usually subsequently managed operatively.