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': 'A 20-years old male presents with anterior shoulder dislocation. This injury is usually caused as a combination of which of the following - \nSelect and explain. \nA. Abduction & external rotation, B. Adduction & external rotation, C. Abduction & internal rotation, D. Adduction & internal rotation', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Most common mechanism of injury for anterior dislocation of shoulder is fall on outstretched hand or throwing, with abduction, external rotation, and extension at shoulder.\n\nAnterior shoulder dislocation\n\nIndirect force (most common) →\xa0\xa0Abduction, external rotation, extension.\nDirect force (less common) \xa0 \xa0→\xa0\xa0Blow from the posterior aspect of shoulder.', 'role': 'assistant'}]