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Tytuł:
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Accuracy of maxillary repositioning surgery using CAD/CAM customized surgical guides and fixation plates.
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Autorzy:
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Wong A; Orthodontic Department, School of Dentistry, The University of Western Australia, Nedlands, Western Australia, Australia. Electronic address: .
Goonewardene MS; Orthodontic Department, School of Dentistry, The University of Western Australia, Nedlands, Western Australia, Australia. Electronic address: .
Allan BP; Private Maxillofacial Surgical Practice, Perth, Australia. Electronic address: .
Mian AS; School of Computer Science and Software Engineering, The University of Western Australia (M017), Crawley, Western Australia, Australia. Electronic address: .
Rea A; UWA Centre for Applied Statistics, School of Mathematics and Statistics, The University of Western Australia, Nedlands, Western Australia, Australia. Electronic address: .
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Źródło:
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International journal of oral and maxillofacial surgery [Int J Oral Maxillofac Surg] 2021 Apr; Vol. 50 (4), pp. 494-500. Date of Electronic Publication: 2020 Sep 09.
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Typ publikacji:
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Journal Article
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Język:
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English
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Imprint Name(s):
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Publication: Copenhagen : Churchill Livingstone
Original Publication: Copenhagen : Munksgaard, c1986-
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MeSH Terms:
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Orthognathic Surgical Procedures*
Surgery, Computer-Assisted*
Adult ; Computer-Aided Design ; Female ; Humans ; Imaging, Three-Dimensional ; Male ; Maxilla/diagnostic imaging ; Maxilla/surgery ; Osteotomy, Le Fort ; Retrospective Studies
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Contributed Indexing:
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Keywords: customized miniplates; orthognathic surgery; osteosynthesis; virtual surgical planning; waferless maxillary surgery
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Entry Date(s):
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Date Created: 20200913 Date Completed: 20210317 Latest Revision: 20210317
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Update Code:
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20240105
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DOI:
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10.1016/j.ijom.2020.08.009
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PMID:
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32919821
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The advent of three-dimensional imaging and computer-aided surgical simulation (CASS) have brought about a paradigm shift in surgical planning. The aim of this study was to assess the accuracy of maxillary repositioning surgery using computer-aided design and manufacturing (CAD/CAM) customized titanium surgical guides and fixation plates. Thirty consecutive adult patients, 13 male and 17 female, with a mean age of 29.2 years and 25.5 years, respectively, requiring Le Fort I maxillary osteotomy, with or without simultaneous mandibular surgery, were evaluated retrospectively. All orthognathic surgeries were performed by one experienced surgeon. The pre-surgical and post-surgical volumetric imaging were superimposed to assess the linear and angular differences between the planned and actual positions of the maxilla following surgery. With the use of the CAD/CAM titanium surgical guides and fixation plates, all surgical movements were within 2mm and 4° of the planned movements, which is considered clinically insignificant. The overall root mean square error between the planned and actual surgical movements was 0.38mm in the transverse dimension, 0.64mm in the anteroposterior dimension, and 0.55mm in the vertical dimension. In regard to the centroid of the maxilla, the absolute angular difference of the maxillary centroid was 1.06° in pitch, 0.47° in roll, and 0.49° in yaw. Maxillary repositioning surgery can be performed with high accuracy using CAD/CAM titanium surgical guides and fixation plates.
(Copyright © 2020 International Association of Oral and Maxillofacial Surgeons. All rights reserved.)
