This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Management In Orthopedics, Subject name: Orthopaedics
[{'content': 'K nail work on the pricliple of - \nSelect and explain. \nA. One point fixation, B. Two point fixation, C. Three point fixation, D. Four point fixation', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., Three point fixation * K-nail is used for transverse or short oblique fracture of femur, especially in isthemic area.* K-nail (Kuntscher cloverleaf intramedullary nail) provides three points fixation due to elastic deformation.* These three points of fixation are both ends of bone (2 points) and isthmus (3rd point).", 'role': 'assistant'}]