Importance of computed tomography in posterior malleolar fractures: Added information to preoperative X-ray studies

Figure 3 Axial computed tomography scan posterior malleolus measure. A: The sagittal plane; B: The corresponding axial slice was selected 5 mm above the highest point of the tibial articular surface; C: In the axial image, the tibial articular surface; D: The area corresponding to the posterior malleolus fracture was measured; E: Thus, the x/(x + y) ratio was used to obtain the percentage of the tibial plafond surface (axial view) involved in the posterior malleolus.