This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Orthopaedics
[{'content': 'Green extra-aicular ahrodesis done for \nSelect and explain. \nA. Genu Valgum, B. Coxa vara, C. Congenital veical talus, D. Cubitus varus', 'role': 'user'}, {'content': "Answer: C \nExplanation: Grice and Green procedure is an extra aicular fusion (ahrodesis) of the subtalar jointIt is used in the treatment of patients of congenital veical talus between age of 4 to 8 years old along with open reduction of the deformity.(Refer: Mohindra's Fundamentals of Ohopedics, 2nd edition, pg no. 346, 349)", 'role': 'assistant'}]