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': 'What about durham pin is true ? \nSelect and explain. \nA. It is used to give skeletal traction, B. It has threads in the center of pin, C. It is used to give skeletal traction through calcaneum, D. All the above', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., All the above Denham pin It is a type of pin used to give skeletal traction. Threaded poion of the pin engages the bony coices and reduces the chances of pin sliding. This type of pin is used commonly to give skeletal traction through the cancellous bone i.e. calcaneum. It can also be used to give traction through osteoporotic bones.", 'role': 'assistant'}]