PA and lateral radiography of the elbow and forearm (may only show a radial head fracture)
The injury can be difficult to diagnose initially, as the attention is focused on the injury to the radial head, leading to the distal radio-ulnar injury being overlooked.
The examination finding of tenderness of the distal radio-ulnar joint suggests an<unk><unk>  injury in patients who have sustained high energy forearm trauma.
Plain radiography shows the radial head fracture, with dorsal subluxation of the ulna often seen on lateral view of the pronated wrist
Radial pull test: >3mm displacement dorsal/volar is consistent with<unk><unk> 
May require CT to evaluate subtle fractures
Essex-Lopresti fracture
Distal humerus fracture
Jefferson fracture
Radial head fracture
Smith's fracture
Hangman's fracture
Capitellum fracture
Capitate fracture