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
In replantation surgery all the following types of injuries have the best outlook regarding survival and return of function except 
Select and explain. 
A. Clean sharp guillotine amputations, B. Minimal local crush amputations, C. Avulsion amputation with minimal proximal distal vascular injury, D. Crush injuries with avulsed vessels
D: Crush injuries with avulsed vessels
Answer: D: Crush injuries with avulsed vessels 
Explanation: In Clean sharp guillotine amputations, Minimal local crush amputations, Avulsion amputation with minimal proximal distal vascular injury have the best outlook regarding survival and return of function after replantation. Crushed and avulsed vessels require debridement and the use of interpositional vein grafts and the outlook is less ceain.