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
Infected mandibular angle fracture is treated by? 
Select and explain. 
A. Mini plates, B. Reconstruction plates, C. Champy plate at upper border, D. IMF + ID
D: IMF + ID
Answer: D: IMF + ID 
Explanation: We can never place a foreign object(implant mini plates or reconstruction plates) at infection site.