This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Congenital Dislocation of Hip (C.D.H.), Subject name: Orthopaedics
[{'content': 'What does X-ray pelvis show? \nSelect and explain. \nA. Coxa vara, B. Coxa Valgum, C. TB hip, D. Developmental dysplasia of the hip', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. A. Coxa varaThe normal angle between the neck and shaft of femur is an obtuse angle but in the image, on the right side the angle is reduced to a right angle. This is diagnostic of Coxa Vara. The Shenton line is normal on both sides ruling out developmental dysplasia of the hip.', 'role': 'assistant'}]