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': 'A patient has 2 months POP cast for tibial fracture of the left leg. Now he needs mobilisation with a single crutch. You will use this crutch on which side - \nSelect and explain. \nA. Left side, B. Right side, C. Any side, D. Both side', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Use of crutch in the opposite side, while the affected (left) left leg is bearing weight, will relieve pressure from the healing fracture site.\nWhen the unaffected (Rt. Leg) is raised to step, the crutch on rt. side and the left leg(injured leg) will support the trunk.\nFor hip pathology, the crutch is given on the same side.', 'role': 'assistant'}]