Evaluating the accuracy of resection planes in mandibular surgery using a preoperative, intraoperative, and postoperative approach.

Autor: Brouwer de Koning SG; Department of Surgical Oncology, Netherlands Cancer Institute, Antoni van Leeuwenhoek, Amsterdam, The Netherlands; Department of Head and Neck Surgery and Oncology, Netherlands Cancer Institute, Antoni van Leeuwenhoek, Amsterdam, The Netherlands. Electronic address: s.brouwerdekoning@nki.nl., Ter Braak TP; Department of Head and Neck Surgery and Oncology, Netherlands Cancer Institute, Antoni van Leeuwenhoek, Amsterdam, The Netherlands; Department of Head and Neck Surgery and Oncology, Verwelius 3D Lab, Netherlands Cancer Institute, Antoni van Leeuwenhoek, Amsterdam, The Netherlands., Geldof F; Department of Surgical Oncology, Netherlands Cancer Institute, Antoni van Leeuwenhoek, Amsterdam, The Netherlands., van Veen RLP; Department of Head and Neck Surgery and Oncology, Netherlands Cancer Institute, Antoni van Leeuwenhoek, Amsterdam, The Netherlands; Department of Head and Neck Surgery and Oncology, Verwelius 3D Lab, Netherlands Cancer Institute, Antoni van Leeuwenhoek, Amsterdam, The Netherlands., van Alphen MJA; Department of Head and Neck Surgery and Oncology, Netherlands Cancer Institute, Antoni van Leeuwenhoek, Amsterdam, The Netherlands; Department of Head and Neck Surgery and Oncology, Verwelius 3D Lab, Netherlands Cancer Institute, Antoni van Leeuwenhoek, Amsterdam, The Netherlands., Karssemakers LHE; Department of Head and Neck Surgery and Oncology, Netherlands Cancer Institute, Antoni van Leeuwenhoek, Amsterdam, The Netherlands; Department of Head and Neck Surgery and Oncology, Verwelius 3D Lab, Netherlands Cancer Institute, Antoni van Leeuwenhoek, Amsterdam, The Netherlands., Schreuder WH; Department of Head and Neck Surgery and Oncology, Netherlands Cancer Institute, Antoni van Leeuwenhoek, Amsterdam, The Netherlands; Department of Head and Neck Surgery and Oncology, Verwelius 3D Lab, Netherlands Cancer Institute, Antoni van Leeuwenhoek, Amsterdam, The Netherlands., Karakullukcu MB; Department of Head and Neck Surgery and Oncology, Netherlands Cancer Institute, Antoni van Leeuwenhoek, Amsterdam, The Netherlands; Department of Head and Neck Surgery and Oncology, Verwelius 3D Lab, Netherlands Cancer Institute, Antoni van Leeuwenhoek, Amsterdam, The Netherlands.
Jazyk: angličtina
Zdroj: International journal of oral and maxillofacial surgery [Int J Oral Maxillofac Surg] 2021 Mar; Vol. 50 (3), pp. 287-293. Date of Electronic Publication: 2020 Jul 15.
DOI: 10.1016/j.ijom.2020.06.013
Abstrakt: In mandibular surgery, three-dimensionally printed patient-specific cutting guides are used to translate the preoperative virtually planned resection planes to the operating room. This study was performed to determine whether cutting guides are positioned according to the virtual plan and to compare the intraoperative position of the cutting guide with the resection performed. Nine patients were included. The exact positions of the resection planes were planned virtually and a patient-specific cutting guide was designed and printed. After surgical placement of the cutting guide, intraoperative cone beam computed tomography (CBCT) was performed. Postoperative CT was used to obtain the final resection planes. Distances and yaw and pitch angles between the preoperative, intraoperative, and postoperative resection planes were calculated. Cutting guides were positioned on the mandible with millimetre accuracy. Anterior osteotomies were performed more accurately than posterior osteotomies (intraoperatively positioned and final resection planes differed by 1.2±1.0mm, 4.9±6.6°, and 1.8±1.5°, respectively, and by 2.2±0.9mm, 9.3±9°, and 8.3±6.5° respectively). Differences between intraoperatively planned and final resection planes imply a directional freedom of the saw through the saw slots. Since cutting guides are positioned with millimetre accuracy compared to the virtual plan, the design of the saw slots in the cutting guides needs improvement to allow more accurate resections.
(Copyright © 2020 International Association of Oral and Maxillofacial Surgeons. Published by Elsevier Inc. All rights reserved.)
Databáze: MEDLINE
Externí odkaz: