Skier's Thumb Anatomy
To better understand skier's thumb, it helps to understand the anatomy of the thumb.
The collateral ligaments support the sides of the thumb joints. The ulnar collateral ligament supports the side next to the index finger of the first joint of the thumb.
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- Zeman C, Hunter RE, Freeman JR, Purnell ML, Mastrangelo J. Acute skier's thumb repaired with a proximal phalanx suture anchor. Am J Sports Med. 1998 Sep-Oct;26(5):644-50.