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': 'Knuckle bender splint is used for: September 2009 \nSelect and explain. \nA. Ulnar nerve palsy, B. Radial nerve palsy, C. Median nerve palsy, D. Axillary nerve palsy', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. A: Ulnar Nerve Palsy', 'role': 'assistant'}]