While studying the Monteggia and Galeazzi fracture and dislocation today, I googled and came up with a mnemonic. GRUesome MURder helps us remember which bone is fractured and which one is dislocated.
R: Radial fracture (lower- third)
U: Ulnar dislocation
U: Ulnar fracture (upper- third)
R: Radial dislocation
Also in Monteggia fracture, bone of medial side is involved.
- Jaskunwar Singh