Abstract
Objectives To determine the utility of three-dimensional (3D) printed models in individualized
petroclival tumor resection planning by measuring the fidelity of printed anatomical
structures and comparing tumor exposure afforded by different approaches.
Design Case series and review of the literature.
Setting Tertiary care center.
Participants Three patients with petroclival lesions.
Main Outcome Measures Subjective opinion of access by neuro-otologists and neurosurgeons as well as surface
area of tumor exposure.
Results Surgeons found the 3D models of each patient's skull and tumor useful for preoperative
planning. Limitations of individual surgical approaches not identified through preoperative
imaging were apparent after 3D models were evaluated. Significant variability in exposure
was noted between models for similar or identical approaches. A notable drawback is
that our printing process did not replicate mastoid air cells.
Conclusions We found that 3D modeling is useful for individualized preoperative planning for
approaching petroclival tumors. Our printing techniques did produce authentic replicas
of the tumors in relation to bony structures.
Keywords
petroclival - 3D printer - individualized surgical planning - surgical education
