Digital Anatomy to Improve Screw Insertion Techniques for Plate-Screw Fixation of the Pubic Body

Figure 4

Insertion of the inner screw and parameter measurements. Left: The red rectangle is the screw at the maximum anterior inclination position, whereas the green rectangle is the 14-mm-long screw at the maximum posterior inclination position. The white reference line is perpendicular to the cortical tangential line of screw insertion point M. O indicates the lowest point of the pubic symphysis. MAIA: maximum anterior inclination angle; MPIA: maximum posterior inclination angle. Right: The white reference line is perpendicular to the cortical tangential line of screw insertion point M. The MIA is the medial inclination angle (the angle between line OM and the reference line). O indicates the lowest point of the pubic symphysis.