Objective: To evaluate a method which allows preoperative definition of virtual bone resection planes in planning of spinal osteotomies. We developed a technique applying cranial navigation tools for integration of objects and navigation plans into intraoperative visualization using the image-injection[for full text, please go to the a.m. URL] ; SeriesInformation ; 66. Jahrestagung der Deutschen Gesellschaft für Neurochirurgie (DGNC)