Fig. 1
From: Modified posteromedial approach for treatment of posterior pilon variant fracture
Preoperative radiographs of case 3. a-b The Arrow Head showing the “double contour” sign on AP view indicates the existence of PM fragment. The Arrow showing the “double joint line” sign on lateral view indicates the proximally displaced posterior tibial plafond. In together with the two signs, posterior pilon fracture is in highly suspicion. c-d CT scan and reconstruction of the same patient provides a better view of the location and size of the PM, PL fragment