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': 'Supracondylar fracture of the femur commonly injures which structure: September 2005 \nSelect and explain. \nA. Sciatic nerve, B. Popliteal nerve, C. Popliteal vessel, D. Femoral vessel', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. C: Popliteal Vessel Femoral vessel is commonly injured in fracture of the lower third of femur. Sciatic nerve is affected in posterior dislocationof the hip.', 'role': 'assistant'}]