A case series on a new reference in mandibular angles harmonization: the Frontozygomatic-Infraorbital Line (FZ-IOL).

Autor: Sanz D; Instituto Português da Face, Lisbon, Portugal., Ângelo DF; Instituto Português da Face, Lisbon, Portugal; Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal; Centre for Rapid and Sustainable Product Development, Polytechnic Institute of Leiria, Marinha Grande, Portugal., Maffia F; Instituto Português da Face, Lisbon, Portugal; PhD Program of the Faculty of Medicine, University of Lisbon, Lisbon, Portugal; Maxillofacial Surgery Unit, Department of Neurosciences, Reproductive and Odontostomatological Sciences, University of Naples 'Federico II', Naples, Italy. Electronic address: francesco.maffia@gmail.com., Marques R; Instituto Português da Face, Lisbon, Portugal., Cardoso H; Instituto Português da Face, Lisbon, Portugal.
Jazyk: angličtina
Zdroj: Journal of cranio-maxillo-facial surgery : official publication of the European Association for Cranio-Maxillo-Facial Surgery [J Craniomaxillofac Surg] 2024 Sep; Vol. 52 (9), pp. 1030-1034. Date of Electronic Publication: 2024 Jun 13.
DOI: 10.1016/j.jcms.2024.06.015
Abstrakt: the aim of this paper, is to propose a new reference line: the Frontozygomatic-Infraorbital Line (FZ-IOL). This reference line can guide the surgical team planning mandibular angle harmonization, based on the patient's skeletal proportion. The Frontozygomatic-Infraorbital Line has been adopted for symmetrization surgery, masculinization surgery, and in unsatisfactory results of previous orthognathic surgery. From March 2021 to December 2022, 3 patients were treated for severe facial asymmetry affecting mainly the lower third of the face. All cases were planned with the reference FZ-IOL. Patients were treated in the same center, at the Orthognathic Surgery Department of the Instituto Portugues da Face, Lisbon, Portugal. The Frontozygomatic-Infraorbital Line is designed virtually using software to reconstruct a 3D image from a digital imaging and communications in medicine (DICOM) file obtained from a cone beam computer tomography (CBCT). , connecting the two orbital rims. Then, a vertical line, the frontozygomatic line perpendicular to the IOL and passing through the outmost lateral portion of the frontozygomatic suture is drawn. The proposed line demonstrated how establishing appropriate reference lines is crucial for the success of the surgery. The selection of reference lines should be based on the patient's anatomy, the symmetrization process's complexity, and the surgery's desired outcome. The Frontozygomatic-Infraorbital Line represents an adequate reference line for managing mandibular angle lateral projection, improving lower third of the face symmetrization.
Competing Interests: Declaration of competing interest The authors declare no conflicts of interest.
(Copyright © 2024 European Association for Cranio-Maxillo-Facial Surgery. Published by Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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