This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Pelvis and Hip injuries, Subject name: Orthopaedics
[{'content': 'In fracture acetabulum of hip which of the following is late complication ?- \nSelect and explain. \nA. Osteoahritis, B. Tardy sciatic nerve plasy, 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 osteoahritis. Other possible problems include AVN of femoral head and heterotopic ossification ( bone formation). Early complications: 1-Venous Thromboembolism. 2-Neurovascular injury: Sciatic nerve, the lateral femoral cutaneous nerve, Femoral nerve, Superior gluteal bundle and the iliofemoral vessels. 3-Intraaicular hardware . 4-Malreducton. 5-Failure of fixation. 6-Infection. Late complications: 1-Avascular necrosis: femoral or acetabular. 2-Posttraumatic Ahritis. 3-Heterotopic Ossification. 4-Nonunion. Ref: Apley's 9th/e 840,841", 'role': 'assistant'}]