Preoperative planning procedure
CREST
Preoperative planning was performed in collaboration with a technician of the virtual planning vendor (KLS Martin Group, Tuttlingen, Germany) during a web meeting using high-resolution CT scans of the head, neck and pelvis (slice thickness ≤ 1 mm). The underlying CT data was segmented and displayed for virtual 3D-visualization. Considering the patient-specific anatomy, the resection margins, the section and size of the iliac crest used for graft harvesting and, if necessary, osteotomies within the graft were determined (Fig. Preoperative planning of best possible mandibular reconstruction (