This uncommon injury may result from traction/rotation, or a fall onto an outstretched hand.
This injury is associated with local tenderness over the distal ulna. Some local swelling is usual.
Note: Be aware of nonaccidental injury in infants.
Careful scrutiny of the x-rays is important to identify the presence or absence of a metaphyseal component, as this may be the only radiologically visible sign of a corner/bucket handle fracture which can be associated with nonaccidental injury.