Fig. 2.

(A) Schematic photograph showed rolled wire was inserted into lateral cannulated screw from head side to tail side and then pulled out percutaneously toward medial screw head side. At second, this wire tip inserted into medial screw from head to tail side. (B) And then pulled out percutanously toward lateral screw head side. (C) Wire's tips were twisted between both screw's head sides in a "figure of butterfly" configuration.