This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Pediatric Ohopedics, Subject name: Orthopaedics
Triple ahrodesis involves: 
Select and explain. 
A. Calcaneocuboid, talonavicular and talocalcaneal, B. Tibiotalar, calcaneocuboid and talonavicular, C. Ankle joint, calcaneocuboid and talonavicular, D. None of the above
A: Calcaneocuboid, talonavicular and talocalcaneal
Answer: A: Calcaneocuboid, talonavicular and talocalcaneal 
Explanation: Triple Ahrodesis: Fusion of three joints Talonavicular - most difficult to fuse Talocalcaneal Calcaneocuboid Indicated only if there is a strong contraindication to ahroplasty (eg, previous infection) or to salvage a failed ahroplasty Indication: >10 yrs of age for treatment of CTEV