A mechanism of lateral flexion distraction injury of the spine.

Flexion distraction fractures or Chance fractures are well described in the literature. We present an unusual pattern of injury of a pure lateral flexion distraction fracture of the T12 vertebra with no posterior element disruption following a blow to the right torso to a passenger in a road traffic accident. The diagnosis was made intra-operatively as the potential for this injury pattern following the described mechanism was not initially recognised. We suggest that this type of injury be suspected in any patient where a fulcrum has acted at any point around the torso.