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
Supracondylar fracture of the femur commonly injures which structure: September 2005 
Select and explain. 
A. Sciatic nerve, B. Popliteal nerve, C. Popliteal vessel, D. Femoral vessel
C: Popliteal vessel
Answer: C: Popliteal vessel 
Explanation: 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.