This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nose and paranasal sinuses, Subject name: ENT
Most common complication of cadwell-luc operation is: 
Select and explain. 
A. oroantral fistula, B. Infraorbital nerve palsy, C. Hemorrhage, D. Orbital cellulitis
B: Infraorbital nerve palsy
Answer: B: Infraorbital nerve palsy 
Explanation: Most common complication of Caldwell-Luc operation is injury to infraorbital nerve which occurs is 21% cases. Ref.Scott Brown 7/e,Vol 2,p1494.