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': 'In posterior compartment syndrome which passive movement causes pain? \nSelect and explain. \nA. Dorsiflexion of foot, B. Foot inversion, C. Toe dorsiflexion, D. Toe planter flexion', 'role': 'user'}, {'content': 'Answer: A \nExplanation: It is possible to stretch the affected muscles by passively moving the joints in a direction opposite to that of the damaged muscle action:-\n\nPassive extension of fingers produces pain in flexor compartment syndrome of the forearm.\nDorsiflexion of foot produces pain in the posterior compartment of the leg\nPlantar flexion produces pain in the anterior compartment of the leg.', 'role': 'assistant'}]