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: Orthopaedics
[{'content': 'Not true among the following \nSelect and explain. \nA. Cock-up splint for radial nerve palsy, B. Russel traction for trochanteric fractures, C. Boston Brace for scoliosis, D. Crutch field traction for lumbar spine injuries', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Crutch field traction - Cervical spine injuries', 'role': 'assistant'}]