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Review Question - QID 219368

Thumb Collateral Ligament Injury Etiology Pathophysiology QID: 219368 (SBQ23PA.72)
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QID 219368 (Type "219368" in App Search)
A 32-year-old male presents two weeks after a tackle-related injury while playing recreational flag football. He states he has felt pain in this thumb since, particularly with performing pinching maneuvers and grasping objects. On physical examination, there is a palpable nodule along the ulnar aspect of the thumb. An MRI demonstrates that his thumb ulnar collateral ligament is torn from its distal insertion and retracted proximally (Figure 1). Which of the following structures is preventing the ulnar collateral ligament from reducing back to its native insertion?
  • A
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  • A