This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Avascular Necrosis, Subject name: Orthopaedics
[{'content': 'Traumatic fracture showing avascular necrosis: (PGI Dec 2007) \nSelect and explain. \nA. Femoral neck, B. Surgical neck of humerus, C. Body of talus, D. Cuboid', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. A (Femoral neck) /Ref: Maheswari 3td/40-41,270; Dahnert Radiology Review manual 5th/46-48; Chapman 4th/45-46; Apley 8th/570-571]Avascular necrosis is common in fracture of- femoral neckQ (including slipped capital femoral epiphysis(r), posterior dislocation of hip}, neck talus(r), waist scaphoid(r) & lunateQ (dislocation) - Apley 8th/570In fracture neck fern urr the more proximal the lesions, more are the chance of avascular necrosis. So subcapital fracture neck femur has maximum chance ofAVN (worst prognosis)', 'role': 'assistant'}]