Fig. 5From: A feasibility study of individual 3D-printed navigation template for the deep external fixator pin position on the iliac crestThe overlay of trajectories before and after the operation. The trajectories after the operation (a) showed all pin was inserted pointing to the posterior column of the acetabulum, consistent with those in the preoperative plans (b). The merged images (c-e) confirmed the preoperative and postoperative trajectories were mostly overlaid by visual inspectionBack to article page