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
[{'content': 'Which of the following is not done in treatment of ankylosis? \nSelect and explain. \nA. High condylar shave, B. Repositioning of temporal fascia, C. Ipsilateral coronoidectomy, D. Contralateral coronoidectomy', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]