A Quantitative Anatomic Study of Plate-Screw Fixation of the Acetabular Posterior Column through a Posterior Approach

Abstract Objective The aim of this study was to determine safe paths for screw placement on the posterior column of the acetabulum. Methods A total of 25 male hemipelvises were utilized in this study. These hemipelvises were sectioned, and formed cross-sections A, B, C, D, and E. The length of the screw and screw posterior column angle of the entry points at cross-sections B, C, and D were measured. Results On the margin of the acetabulum, lateral middle 1/4 point, midpoint, medial middle 1/4 point, and medial margin of the posterior column of each cross-section, the safe entry angle of inclination is 39, 57, 74…