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Review Question - QID 6920

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QID 6920 (Type "6920" in App Search)
A 19-year-old collegiate baseball player injures the ring finger on his dominant hand while sliding headfirst into second base. He reports that he is unable to actively flex or extend the distal interphalangeal joint of the finger. Radiographs are shown in Figures 19a and 19b. What is the anatomic lesion leading to this injury?
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  • A
  • B