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
[{'content': 'All are true about supracondylar fracture of humerus except: \nSelect and explain. \nA. Posterior shift of distal fragment, B. Median nerve is most common nerve damaged, C. Injury of brachial aery may occur, D. Common in elderly', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. d. Common in elderly Supracondylar Fracture of the Humerus: Complications :Immediate- injury to brachial aery & injury to nerve (median nerve-most common, radial nerve-sometime affected)Early- Volkmann's ischemiaLate complication- Malunion(cubitus varus deformity), myositis ossificans & Volkmann\\\\ ischemic contracture .Displacement: The distal fragment may be displaced in the following directionPosterior or backward shiftPosterior or backward tiltProximal shiftMedial or lateral shiftMedial tiltInternal rotation", 'role': 'assistant'}]