Monteggia fracture-dislocation.

There is fracture involving proximal third of ulna & disruption of radio capitellar line indicating dislocation of the radial head. This injury combination is suggestive of Monteggia fracture dislocation.

The radio capitellar line should be well aligned both in frontal as well as lateral views. If not, suspect radial head dislocation.

The patient underwent reduction in theatre.