Spine Case 14 Answer

Answer: Jefferson Fracture (C1 burst fracture) 

Fractures with 5 mm of lateral displacement of the right lateral mass of C1 relative to C2, 4 mm displacement of the left lateral mass of C1 relative to C2. Transverse nondisplaced fracture of the left lateral aspect of the ring of C1 and fracture of the right lateral transverse process.