This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Upper Limb Traumatology, Subject name: Orthopaedics
[{'content': 'A patient presents to you with musculoskeletal complaints. The main concern is to differentiate aicular versus non aicular origin of pain. Which of the following feature is suggestive of non aicular origin of pain? \nSelect and explain. \nA. Pain or decrease range of motion on active and passive movement both, B. Swelling, C. Crepitation, D. Pain on active movement but not on passive movement', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Differentiation between aicular and extraaicular joint disorders - Aicular disorders are characterized by internal/deep joint pain that is exacerbated by active and passive motion and by reduced range of motion. - Extraaicular disorders are associated with joint pain with active motion rather than passive motion in addition, range of motion often is preserved.', 'role': 'assistant'}]