This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Supracondylar Fracture, Subject name: Orthopaedics
[{'content': 'Gun stock deformity is seen in: \nSelect and explain. \nA. Supracondylar fracture of humerus, B. Lateral condyle fracture, C. Radial head fracture, D. Ulnar head fracture', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. (a) Supracondylar fracture of humerusRef: Maheshwari 5th ed. /102; Essential Orthopedics by J. Maheshwari, P 98* Most common complication of supracondylar fracture is malunion, which further can lead to cubitus varus deformity. This is because of the reason that fracture unites with the distal fragment tilted medially and in internal rotation.* This cubitus varus is usually termed as gun stock deformity.* Most common nerve damaged in supracondylar fracture: Anterior Interosseous Nerve.', 'role': 'assistant'}]