Sixty Years of Innovation in Biomechanical Orthognathic Surgery: The State of the Art and Future Directions

Craniofacial surgery is proposed and performed for a variety of reasons, ranging from congenital or acquired malformations to emotional disorders and parafunctions of the masticatory, respiratory, auditory, and visual systems. Surgery of the mandible and its orthostatic repositioning is the most com...

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Main Author: Carlos Aurelio Andreucci
Format: Article
Language:English
Published: MDPI AG 2024-02-01
Series:Osteology
Subjects:
Online Access:https://www.mdpi.com/2673-4036/4/1/2
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author Carlos Aurelio Andreucci
author_facet Carlos Aurelio Andreucci
author_sort Carlos Aurelio Andreucci
collection DOAJ
description Craniofacial surgery is proposed and performed for a variety of reasons, ranging from congenital or acquired malformations to emotional disorders and parafunctions of the masticatory, respiratory, auditory, and visual systems. Surgery of the mandible and its orthostatic repositioning is the most common of these corrections of craniofacial anomalies. Throughout the history of these procedures, various techniques have been proposed and perfected, but always with a high rate of minor and major complications. The recurrence rate of mandibular malposition is high, as is the temporary loss of facial sensitivity and motor skills. These outcomes are often related to the choice of surgical technique rather than the skill of the surgeon, which is considered to be one of the most important factors in the final outcome. Surgical techniques involving direct manipulation of the vascular-nervous bundles, such as bilateral sagittal split osteotomy, clearly present the possibility of major or minor complications. In this study, an orthognathic surgical technique, performed by the same team for over 40 years and now available through a 20-year postoperative patient follow-up study, is presented with a literature review relating it to biomechanical concepts and bone remodeling to analyze the evolution of orthognathic surgery since it became common practice to correct maxillofacial discrepancies. In this review, we also present a case report in which previous orthodontic treatment prepared a patient for surgical correction of mandibular bone discrepancy without the need for combined maxillary and/or genioplasty, and we describe the most commonly used techniques today, as well as their advantages and disadvantages. The combination of established concepts together promotes favorable stability of mandibular osteotomies, functional anatomical positioning of the temporomandibular joint, reduced risk of injury to the mandibular vasculo-nervous bundle, and good aesthetics with positive patient acceptance and no relapse, thus these are the objectives for proposing innovative treatments that combine the technologies available today.
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spelling doaj.art-495739fdef0b4ead99d8581cc309cab92024-03-27T13:58:39ZengMDPI AGOsteology2673-40362024-02-0141113210.3390/osteology4010002Sixty Years of Innovation in Biomechanical Orthognathic Surgery: The State of the Art and Future DirectionsCarlos Aurelio Andreucci0Mechanical Engineering Department, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 712, 4200-465 Porto, PortugalCraniofacial surgery is proposed and performed for a variety of reasons, ranging from congenital or acquired malformations to emotional disorders and parafunctions of the masticatory, respiratory, auditory, and visual systems. Surgery of the mandible and its orthostatic repositioning is the most common of these corrections of craniofacial anomalies. Throughout the history of these procedures, various techniques have been proposed and perfected, but always with a high rate of minor and major complications. The recurrence rate of mandibular malposition is high, as is the temporary loss of facial sensitivity and motor skills. These outcomes are often related to the choice of surgical technique rather than the skill of the surgeon, which is considered to be one of the most important factors in the final outcome. Surgical techniques involving direct manipulation of the vascular-nervous bundles, such as bilateral sagittal split osteotomy, clearly present the possibility of major or minor complications. In this study, an orthognathic surgical technique, performed by the same team for over 40 years and now available through a 20-year postoperative patient follow-up study, is presented with a literature review relating it to biomechanical concepts and bone remodeling to analyze the evolution of orthognathic surgery since it became common practice to correct maxillofacial discrepancies. In this review, we also present a case report in which previous orthodontic treatment prepared a patient for surgical correction of mandibular bone discrepancy without the need for combined maxillary and/or genioplasty, and we describe the most commonly used techniques today, as well as their advantages and disadvantages. The combination of established concepts together promotes favorable stability of mandibular osteotomies, functional anatomical positioning of the temporomandibular joint, reduced risk of injury to the mandibular vasculo-nervous bundle, and good aesthetics with positive patient acceptance and no relapse, thus these are the objectives for proposing innovative treatments that combine the technologies available today.https://www.mdpi.com/2673-4036/4/1/2orthognathic surgerybilateral sagittal split osteotomycraniofacial surgerytemporomandibular jointtemporomandibular disorder
spellingShingle Carlos Aurelio Andreucci
Sixty Years of Innovation in Biomechanical Orthognathic Surgery: The State of the Art and Future Directions
Osteology
orthognathic surgery
bilateral sagittal split osteotomy
craniofacial surgery
temporomandibular joint
temporomandibular disorder
title Sixty Years of Innovation in Biomechanical Orthognathic Surgery: The State of the Art and Future Directions
title_full Sixty Years of Innovation in Biomechanical Orthognathic Surgery: The State of the Art and Future Directions
title_fullStr Sixty Years of Innovation in Biomechanical Orthognathic Surgery: The State of the Art and Future Directions
title_full_unstemmed Sixty Years of Innovation in Biomechanical Orthognathic Surgery: The State of the Art and Future Directions
title_short Sixty Years of Innovation in Biomechanical Orthognathic Surgery: The State of the Art and Future Directions
title_sort sixty years of innovation in biomechanical orthognathic surgery the state of the art and future directions
topic orthognathic surgery
bilateral sagittal split osteotomy
craniofacial surgery
temporomandibular joint
temporomandibular disorder
url https://www.mdpi.com/2673-4036/4/1/2
work_keys_str_mv AT carlosaurelioandreucci sixtyyearsofinnovationinbiomechanicalorthognathicsurgerythestateoftheartandfuturedirections