This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Congenital Talips Eqino Varvs (C.T.E.V.), Subject name: Orthopaedics
[{'content': 'Triple orthodesis consists of fusion of which three joints of foot? \nSelect and explain. \nA. Subtalar + Calcaneocuboid + Talonavicular joints, B. Subtalar + Tibiofibular + Talonavicular joints, C. Subtalar + Tarsometatarsal + Talonavicular joints, D. Subtalar + Talocalcaneal + Talonavicular joints', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. a (Subtalar + Calcaneocuboid + Talonavicular joints)# Subtalar joint is talocalcaneocuboid (TCC) joint.(TCC-CCTN =>TaloCalcaneoCuboid + CalcaneoCuboid +TaloNavicular joints). (Mnemonic: TCC-CCTN).TRIPLE ORTHODESIS# Used in treatment of CTEV (Congenital talipes equino vrtfus).# Performed after the age of 12 years.', 'role': 'assistant'}]