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: Surgery
Charlie Chaplin gait is a feature of: 
Select and explain. 
A. Congenital coxa vara, B. Tibial torsion, C. Genu valgus, D. CDH
B: Tibial torsion
Answer: B: Tibial torsion 
Explanation: Charlie Chaplin gait is seen in bilateral external torsion of tibia, caused by faulty sitting or sleeping, as in prolonged maintenance of 'spread-eagle' or frogleg position. Management includes early change sleep position, brace management, or late osteotomy.