This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Surgery
[{'content': 'Tension band wiring is indicated in fracture of which of the following ? \nSelect and explain. \nA. Fracture humerus, B. Olecranon, C. Fracture tibia, D. Fracture spine', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Tension band wiring is indicated in the treatment of two types of olecranon fracture. First type is a clean break with separation of the fragments, and second type is comminuted fracture of the olecranon with displced fragments. A crack in the olecranon without displacement is treated by immobilising the elbow in an above elbow plaster slab in 30 degrees of flexion.', 'role': 'assistant'}]