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
Avascular necrosis is NOT seen in: 
Select and explain. 
A. Fracture neck of femur, B. Fracture neck of scaphoid, C. Fracture neck of talus, D. Dislocation of lunate
B: Fracture neck of scaphoid
Answer: B: Fracture neck of scaphoid 
Explanation: Avascular necrosis is common in fracture of femoral neck (including slipped capital femoral epiphysis, posterior dislocation of hip), fracture neck of talus, fracture waist of scaphoid and lunate (dislocation). Regions notorious for AVN: Head of femur, body of talus, proximal pa of scaphoid and lunate. In fracture neck femur the more proximal the lesion, more are chances of avascular necrosis. So subcapital fracture neck of femur has maximum chances of AVN (worst prognosis). Ref: Apley's Ohopedics 8/e, page 570 ; Maheshwari 3/e, page 40-41, 270