What abnormalities are present on this lateral X-ray?
- This lateral X-ray demonstrates a total lunate dislocation with scaphoid fracture.
- Note how the proximal scaphoid has migrated proximally to remain close to the displaced lunate.
- Normally lunate dislocation occurs following a perilunar dislocation with the dorsally displaced carpal bones levering the rotated lunate forwards on return of the hand and carpus to its resting position. It can also occur following forced hyperdorsiflexion sustained in an MVA with the steering wheel distracting the hand and carpus whilst the lunate is ejected forwards like an orange pip.