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915 Orthopaedics

A 69-year-old man has numbness in the middle three digits of his right hand and finds it difficult to grasp objects with that hand. He states that he retired 9 years earlier, after working as a carpenter for 50 years. He has atrophy of the thenar eminence ( Fig ). Which of the following conditions is the most likely cause of the problems in his hand?,

ACompression of the median nerve in the carpal tunnel
BRepeated trauma to the ulnar nerve
COsteoahritis of the cervical spine
DFormation of the osteophytes that compress the ulnar nerve at the medial epicondyle
Orthopaedics
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