This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Injuries Around Arm & Elbow, Subject name: Orthopaedics
[{'content': 'In which of the following the 3 point relationship is maintained: \nSelect and explain. \nA. medial condyle humerus, B. lateral condyle humerus, C. olecranon, D. Supracondylar', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans: d (Supracondyar)The 3 point relationship is maintained in supracondylar fracture humerus.The 3 bony points are:Medial epicondyleLateral epicondyleTip of olecranonHead of radius is sometimes considered as the fourth partNormally in an elbow flexed to 90deg. these three bony points form a near isoseles triangle. But in an extended elbow they lie in a straight horizontal line.In supra condylar fracture this relationship is maintained because fracture line is above the condyles.', 'role': 'assistant'}]