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': 'In Fracture acetabulum, late complication is - \nSelect and explain. \nA. Osteoarthritis, B. Tardy sciatic nerve palsy, C. Recurrent Dislocation, D. None of the above', 'role': 'user'}, {'content': 'Answer: A \nExplanation: In the longer term, the common problem is the development of hip osteoarthritis. Other possible problems include AVN of femoral head and heterotopic ossification (bone formation).', 'role': 'assistant'}]