This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Lower Limb Traumatology, Subject name: Orthopaedics
[{'content': "Malgaigne's fracture involves: \nSelect and explain. \nA. Pelvis, B. Femur head, C. Tibial spine, D. Proximal humerus", 'role': 'user'}, {'content': "Answer: A \nExplanation: Malgaigne's fracture: A type of pelvis fracture in which there is a combination of fractures, pubic rami anteriorly and sacro-iliac joint or ilium posteriorly, on the same side.", 'role': 'assistant'}]