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': 'The most common nerve involvement is dislocation of Lunate is - \nSelect and explain. \nA. Median nerve, B. Anterior interosseus, C. Posterior interosseus, D. Ulnar nerve', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Dislocation of carpal bones \n\nDislocation of carpal bones may be of two types:-\n\n1)\xa0 Lunate dislocation\n\nLunate dislocate anteriorly but the rest of the carpals remain in position.\nComplications may be AVN, osteoarthritis and median nerve injury.\n\n2)\xa0 Perilunate dislocation\n\nThe lunate remains in position and the rest of the carpals dislocate dorsally.', 'role': 'assistant'}]