title: Individualized Surgical Approach Planning for Petroclival Tumors Using a 3D Printer.
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.
authors.affiliation: Department of Otolaryngology, University of Kansas Medical Center, Kansas City, Kansas, United States.
authors.forename: Thomas John
authors.initials: TJ
authors.lastname: Muelleman
authors.affiliation: Department of Neurosurgery, University of Kansas Medical Center, Kansas City, Kansas, United States.
authors.forename: Jeremy
authors.initials: J
authors.lastname: Peterson
authors.affiliation: Department of Otolaryngology, University of Kansas Medical Center, Kansas City, Kansas, United States.
authors.forename: Naweed Iffat
authors.initials: NI
authors.lastname: Chowdhury
authors.affiliation: Department of Neurosurgery, University of Kansas Medical Center, Kansas City, Kansas, United States.
authors.forename: Jason
authors.initials: J
authors.lastname: Gorup
authors.affiliation: Department of Neurosurgery, University of Kansas Medical Center, Kansas City, Kansas, United States.
authors.forename: Paul
authors.initials: P
authors.lastname: Camarata
authors.affiliation: Department of Neurosurgery, University of Kansas Medical Center, Kansas City, Kansas, United States.
authors.forename: James
authors.initials: J
authors.lastname: Lin
keywords: 3D printer; individualized surgical planning; petroclival; surgical education