Fig. 7From: Role of an additional third screw in the fixation of transverse patellar fracture with two parallel cannulated screw and anterior wireGap opening distance in knee flexion (a, b, and c) and extension (d, e, and f) under 800 N (left column) and 400 N (middle column) with the anterior wire, and 400 N without the anterior wire (right column)Back to article page