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
[{'content': 'Gunstock deformity is seen in \nSelect and explain. \nA. Lateral condyle fracture, B. Radial head fracture, C. Ulnar head fracture, D. Supracondylar fracture of humerus', 'role': 'user'}, {'content': 'Answer: D \nExplanation: A most common complication of supracondylar fracture is malunion,\nwhich further can lead to cubitus varus deformity.\nThis is because of the reason that fracture unites with the distal fragment tilted medially and in internal rotation.\nThis cubitus varus is usually termed as gunstock deformity.\nMost common nerve damaged in supracondylar fracture: Anterior Interosseous Nerve.', 'role': 'assistant'}]