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': "Treatment of shaft femur fracture in a 3 years old boy? \nSelect and explain. \nA. Gallow's traction, B. Russel traction, C. Intramedullary nailing, D. Plating", 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Russel traction", 'role': 'assistant'}]