This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Injuries Around the Thigh & Knee, Subject name: Orthopaedics
[{'content': 'The immediate treatment of unstable tibial plateau fracture is: \nSelect and explain. \nA. Internal fixation with plate & screw, B. Internal fixation with nail, C. External fixator, D. Complete bed rest', 'role': 'user'}, {'content': "Answer: A \nExplanation: (Internal fixation with plate & screw) (720-ApIey's 8th)* Unstable fracture of Tibial plateau - In younger patient, and more so those with a central depression of more than 5 mm, open reduction with elevation of the plateau and internal fixation with a buttress plate is preferred.* Stable fracture - depression is slight (less than 5 mm), if the patient is old and frail or osteoporotic the fracture is treated with closed reduction (Skeletal traction for 3-4 weeks and then hinged cast brace for another 6 weeks.", 'role': 'assistant'}]