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
The most common sequelae of tuberculous spondylitis in an adolescent is- 
Select and explain. 
A. Fibrous Ankylosis, B. Bony-Ankylosis, C. Pathological dislocation, D. Chronic osteomyelitis
B: Bony-Ankylosis
Answer: B: Bony-Ankylosis 
Explanation: The usual outcome of healed tuberculosis in the spine is the bony ankylosis, in contrast to any other site in the body, where fibrous ankylosis is the usual outcome.

"Spine is the only site where tuberculosis heals with bony ankylosis". Tuli