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: Orthopaedics
[{'content': 'In fracture of the olecranon, excision of the proximal fragment is indicated in all of the following situations except : \nSelect and explain. \nA. Old united fracture, B. Non-articular fracture, C. Fracture extending to coronoid process, D. Elderly patient', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Indications of proximal fragment excision in olecranon fracture :\n\nOld ununited fracture.\nNonarticular fractures.\nOpen fractures with soft tissue viability questionable.\nFractures with extensive comminution (ORIF not possible).\nFractures in elderly.', 'role': 'assistant'}]