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': 'Percutaneous vertebroblasty is indicated in all except - \nSelect and explain. \nA. Tuberculosis, B. Metastasis, C. Osteoporosis, D. Hemangioma', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Tuberculous osteomyelitis is a contraindication for percutaneous vertebroplasty.', 'role': 'assistant'}]