BACKGROUND OF THE INVENTION
Hand injuries in general tend to be disregarded by both patients and doctors until it happens to oneself. Never was this more the case than in thumb injuries, as the importance of the thumb is usually underappreciated until it is injured.
The thumb allows the movement of opposition against the index finger and this gives the ability to grab with the hand. Losing this function means losing basic skills that are taken for granted like holding a pen, a knife/fork or spoon, undoing buttons on a shirt and using Messenger functions on your smartphone.
The skier’s thumb is an injury affecting the Ulnar Collateral Ligament (UCL) at the metacarpophalangeal joint of the thumb.
The mechanism is due to forces after a skier fall with or without pole in their hand on the slope. The handle of the pole or contact with the slope will act as a fulcrum applying forces across the joint and thereby putting the ligament under strain.
Consequently it may tear completely (grade 3), or partly (grade 2,1) or may cause a fracture of the ulnar base of the proximal phalanx of the thumb.
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