Fig. 1
From: U-shaped kirschner wire transfixation: effective treatment for Skier’s thumb
Surgical procedure. A: Placement of a Kirschner wire in the proximal phalanx. B: Bending the Kirschner wire into a “U” shape and hooking it onto the bone fragment. C: Insertion of the second Kirschner wire to stabilize the metacarpophalangeal joint. D: Bending and fixation of the two Kirschner wires at the end to form an elastic tension force, with the dashed line indicating the direction of the force