This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Peripheral nerve injuries, Subject name: Orthopaedics
[{'content': 'Ape thumb deformity is seen in involvement of - \nSelect and explain. \nA. Median nerve, B. Ulnar nerve, C. Radial nerve, D. Axillary nerve', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ape thumb deformity : in this the thumb is in the same plane as the wrist .It occurs due to paralysis of opponens pollicis muscle in median nerve injury at the wrist & the unopposed action of extensor pollicis longus produces an ape like hand .The thenar eminence is wasted & flattened .The thumb is adducted & laterally rotated so that the first metacarpal lies in same plane other metacarpals. REF:Essential ohopedics ,Maheshwari ,5th edition , pg.no.64', 'role': 'assistant'}]