This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous, Subject name: Orthopaedics
[{'content': 'Most common complication following intertrochanteric fracture femur is: \nSelect and explain. \nA. Avascular necrosis of femoral head, B. Malunion, C. Rupture of the Iliopsoas tendon, D. Distal gangrene', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. B. MalunionThe commonest complication of a trochanteric fracture of the femur is malunion and results in Coxa vara. Nonunion is rather rare.', 'role': 'assistant'}]