<prompt> Jeffersons fracture is:Fracture of AxisFracture of AtlasDue to fracture of traumatic spondylolisthesis of C2 over C3Avulsion fracture of C7  <response>: Fractures of Spine Jefferson Fracture Burst fracture of C1ATLAS Mn: JAT Jefferson-ATlas Avulsion fracture of C7 is known as-Clay shoveller fracture Fracture of pedicle of C2 and spondylolisthesis over C3 is hangmanns fracture. 