This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Ohopaedics Q Bank, Subject name: Orthopaedics
[{'content': 'The most common sequelae of tuberculous spondylitis in an adolescent is : \nSelect and explain. \nA. Fibrous ankylosis, B. Bony-ankylosis, C. Pathological dislocation, D. Chronic osteomyelitis', 'role': 'user'}, {'content': 'Answer: B \nExplanation: The usual outcome of healed tuberculosis in spine is the bony ankylosis and in peripheral joints like Hip and Knee Fibrous ankylosis is seen. Note: Ankylosis-Abnormal stiffening and immobility of a joint due to fusion either by fibrous tissues or by bone.', 'role': 'assistant'}]