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Virtual 3D models from patients: (a) AR3DP0002; (b) AR3DP0003; (c) AR3DP0004; (d) AR3DP0005, with some transparency in the bone to display the inner tumor; (e) AR3DP0006; (f) AR3DP0007. Tumors are represented in red, bones in white and surgical guides in green. Surgical cutting planes are illustrated in semi-transparent gray in the cases that required them: (a) and (c). The 3D-printed marker reference is positioned in the surgical guide.
