Clinical Study

Surgical Treatment for Posterior Dislocation of Hip Combined with Acetabular Fractures Using Preoperative Virtual Simulation and Three-Dimensional Printing Model-Assisted Precontoured Plate Fixation Techniques

Figure 1

We mirror the healthy hemipelvis to be the substrate and overlap the fractured portion using the transparent method. Therefore, the size can be estimated from the posterior view by measuring the maximal length from the edge of the posterior wall to the fractured edge (a) divided by the length from the edge of the posterior wall to the border of the posterior column (b). Therefore, the estimated percentage of posterior wall fragment is 25.35/38.51=65.82%.
(a)
(b)