PSI-Guided Mandible-First Orthognathic Surgery: Maxillo-Mandibular Position Accuracy and Vertical Dimension Adjustability

In orthognathic surgery, patient-specific osteosynthesis implants (PSIs) represent a novel approach for the reproduction of the virtual surgical planning on the patient. The aim of this study is to analyse the quality of maxillo-mandibular positioning using a hybrid mandible-first mandibular-PSI-gui...

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Autores principales:	Giovanni Badiali, Mirko Bevini, Ottavia Lunari, Elisa Lovero, Federica Ruggiero, Federico Bolognesi, Liliana Feraboli, Alberto Bianchi, Claudio Marchetti
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	orthognathic surgery patient-specific implants mandible-first CAD/CAM virtual surgical plan Medicine R
Acceso en línea:	https://doaj.org/article/78f0d9f163004893bb820b56542a94da
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spelling	oai:doaj.org-article:78f0d9f163004893bb820b56542a94da2021-11-25T18:08:15ZPSI-Guided Mandible-First Orthognathic Surgery: Maxillo-Mandibular Position Accuracy and Vertical Dimension Adjustability10.3390/jpm111112372075-4426https://doaj.org/article/78f0d9f163004893bb820b56542a94da2021-11-01T00:00:00Zhttps://www.mdpi.com/2075-4426/11/11/1237https://doaj.org/toc/2075-4426In orthognathic surgery, patient-specific osteosynthesis implants (PSIs) represent a novel approach for the reproduction of the virtual surgical planning on the patient. The aim of this study is to analyse the quality of maxillo-mandibular positioning using a hybrid mandible-first mandibular-PSI-guided procedure on twenty-two patients while the upper maxilla was fixed using manually bent stock titanium miniplates. The virtual surgical plan was used to design PSIs and positioning guides, which were then 3D printed using biocompatible materials. A Cone Beam Computed Tomography (CBCT) scan was performed one month after surgery and postoperative facial skeletal models were segmented for comparison against the surgical plan. A three-dimensional cephalometric analysis was carried out on both planned and obtained anatomies. A Spearman correlation matrix was computed on the calculated discrepancies in order to achieve a more comprehensive description of maxillo-mandibular displacement. Intraoperatively, all PSIs were successfully applied. The procedure was found to be accurate in planned maxillo-mandibular positioning reproduction, while maintaining a degree of flexibility to allow for aesthetics-based verticality correction in a pitch range between −5.31 and +1.79 mm. Such a correction did not significantly affect the achievement of planned frontal symmetry.Giovanni BadialiMirko BeviniOttavia LunariElisa LoveroFederica RuggieroFederico BolognesiLiliana FeraboliAlberto BianchiClaudio MarchettiMDPI AGarticleorthognathic surgerypatient-specific implantsmandible-firstCAD/CAMvirtual surgical planMedicineRENJournal of Personalized Medicine, Vol 11, Iss 1237, p 1237 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	orthognathic surgery patient-specific implants mandible-first CAD/CAM virtual surgical plan Medicine R
spellingShingle	orthognathic surgery patient-specific implants mandible-first CAD/CAM virtual surgical plan Medicine R Giovanni Badiali Mirko Bevini Ottavia Lunari Elisa Lovero Federica Ruggiero Federico Bolognesi Liliana Feraboli Alberto Bianchi Claudio Marchetti PSI-Guided Mandible-First Orthognathic Surgery: Maxillo-Mandibular Position Accuracy and Vertical Dimension Adjustability
description	In orthognathic surgery, patient-specific osteosynthesis implants (PSIs) represent a novel approach for the reproduction of the virtual surgical planning on the patient. The aim of this study is to analyse the quality of maxillo-mandibular positioning using a hybrid mandible-first mandibular-PSI-guided procedure on twenty-two patients while the upper maxilla was fixed using manually bent stock titanium miniplates. The virtual surgical plan was used to design PSIs and positioning guides, which were then 3D printed using biocompatible materials. A Cone Beam Computed Tomography (CBCT) scan was performed one month after surgery and postoperative facial skeletal models were segmented for comparison against the surgical plan. A three-dimensional cephalometric analysis was carried out on both planned and obtained anatomies. A Spearman correlation matrix was computed on the calculated discrepancies in order to achieve a more comprehensive description of maxillo-mandibular displacement. Intraoperatively, all PSIs were successfully applied. The procedure was found to be accurate in planned maxillo-mandibular positioning reproduction, while maintaining a degree of flexibility to allow for aesthetics-based verticality correction in a pitch range between −5.31 and +1.79 mm. Such a correction did not significantly affect the achievement of planned frontal symmetry.
format	article
author	Giovanni Badiali Mirko Bevini Ottavia Lunari Elisa Lovero Federica Ruggiero Federico Bolognesi Liliana Feraboli Alberto Bianchi Claudio Marchetti
author_facet	Giovanni Badiali Mirko Bevini Ottavia Lunari Elisa Lovero Federica Ruggiero Federico Bolognesi Liliana Feraboli Alberto Bianchi Claudio Marchetti
author_sort	Giovanni Badiali
title	PSI-Guided Mandible-First Orthognathic Surgery: Maxillo-Mandibular Position Accuracy and Vertical Dimension Adjustability
title_short	PSI-Guided Mandible-First Orthognathic Surgery: Maxillo-Mandibular Position Accuracy and Vertical Dimension Adjustability
title_full	PSI-Guided Mandible-First Orthognathic Surgery: Maxillo-Mandibular Position Accuracy and Vertical Dimension Adjustability
title_fullStr	PSI-Guided Mandible-First Orthognathic Surgery: Maxillo-Mandibular Position Accuracy and Vertical Dimension Adjustability
title_full_unstemmed	PSI-Guided Mandible-First Orthognathic Surgery: Maxillo-Mandibular Position Accuracy and Vertical Dimension Adjustability
title_sort	psi-guided mandible-first orthognathic surgery: maxillo-mandibular position accuracy and vertical dimension adjustability
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/78f0d9f163004893bb820b56542a94da
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PSI-Guided Mandible-First Orthognathic Surgery: Maxillo-Mandibular Position Accuracy and Vertical Dimension Adjustability

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