Introduction: CT and MR imaging are essential radiological examinations for preoperative investigations in musculoskeletal bone tumor. This information is represented in two-dimensional (2D) imaging series. Tumor surgeons have to mentally integrate this 2D information into a three-dimensional (3D) model for surgical planning. The difficulty of this mental integration increases with the complexity of involved regional anatomy and sometimes narrow safety margin in limb salvage surgery of bone tumor. The study is to report our experience with preoperative musculoskeletal surgical planning in a stereoscopic 3D virtual reality environment for thirteen bone tumors. Methods: From Feb 2006 to Feb 2007, twelve patients with bone tumors were included. They consisted of five pelvic tumors, three sacral tumors, three extremities tumor, one LI lesion and one tibia biopsy.
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