Fig. 3

a–d Mechanical analysis. e denotes gravity, and g and f are the component forces of e; h is the force generated by the fixation, and i and j are the component forces of h; k is the line of fracture
a–d Mechanical analysis. e denotes gravity, and g and f are the component forces of e; h is the force generated by the fixation, and i and j are the component forces of h; k is the line of fracture