Monteggia fracture or transolecranon dislocation-fracture?

Ulna fractures with dislocation of the radial head are rare injuries. They constutute less than 5% of all fractures of the upper extremity. We describe a case with an ulnar fracture, dislocation of the radial head and simultaneous fracture of the olecranon. The trauma literature does nos clearly define this type of lesion.