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': 'Aseptic necrosis is common in: March 2007, September 2010 \nSelect and explain. \nA. Scaphoid, B. Calcaneum, C. Cuboid, D. Trapezium', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. A: Scaphoid Fracture through the waist of the scaphoid may lead to avascular necrosis of the proximal pole of scaphoid.', 'role': 'assistant'}]