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: Orthopaedics
Avascular necrosis is a complication of - 
Select and explain. 
A. Fracture of talus, B. Fracture of medial condyle of femur, C. Olecranon fracture, D. Radial head fracture
A: Fracture of talus
Answer: A: Fracture of talus 
Explanation: None