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Radiological measurements (CA, carrying angle (a); AUPA, angle between the axis of proximal and distal fragments of fractured ulna on anteroposterior radiographs (b); AUPL, angle between the axis of proximal and distal fragments of fractured ulna on lateral radiographs (c); OAUL, angle between the line passing at the level of the coronoid and the posterior apex of the olecranon and axis of ulna on lateral radiographs (d)).
