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': 'True about fracture clavicle is -a) Malunionb) Most common site is medial 1 /3rd & 2/3rdc) Comminuted fractured) Due to fall on outstretched hand \nSelect and explain. \nA. ad, B. c, C. ac, D. ab', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Most fractures of the clavicle are caused by a fall onto the shoulder; occasionally a fall onto the outstretched hand is responsible.\nThe most common site is at the junction of the middle third and outer third (junction of medial 2/3rd and outer 1/3 rd). Less often a fracture occurs near lateral end of clavicle.\nBone usually breaks into two fragments. Communities is extremely rare.\nClavicle fracture is usually displaced. Outer fragment is pulled downward and medially due to gravity and pull from pectoralis major while the medial fragment is pulled upward by strenocleidomastoid. Therefore, malunion is common.', 'role': 'assistant'}]