Proximal ulna fracture
Alleged assault with a gold club.
Modified horizontal beam AP projection and a standard lateral
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There is a displaced fracture of the proximal ulna that involves the trochlear notch.
This fracture on the lateral projection is very evident, yet somewhat subtle on the AP projection. Although sometimes technically demanding, it is apparent in this series that views 90° are fitting. The horizontal beam AP projection is a sound example of a modified radiographic technique to achieve diagnostic images despite positional difficulties.