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Accuracy of Patient-Specific Implants in Virtually Planned Segmental Le Fort I Osteotomies

(1) Background: In orthognathic surgery, segmental Le Fort I osteotomies are a valuable method to correct maxillary deformities or transversal discrepancies. However, these procedures are technically challenging, and osteosynthesis can be prone to error. (2) Methods: In this retrospective, monocentr...

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Autores principales: Kuehle, Reinald, Scheurer, Mats, Bouffleur, Frederic, Fuchs, Jennifer, Engel, Michael, Hoffmann, Jürgen, Freudlsperger, Christian
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10532412/
https://www.ncbi.nlm.nih.gov/pubmed/37762977
http://dx.doi.org/10.3390/jcm12186038
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author Kuehle, Reinald
Scheurer, Mats
Bouffleur, Frederic
Fuchs, Jennifer
Engel, Michael
Hoffmann, Jürgen
Freudlsperger, Christian
author_facet Kuehle, Reinald
Scheurer, Mats
Bouffleur, Frederic
Fuchs, Jennifer
Engel, Michael
Hoffmann, Jürgen
Freudlsperger, Christian
author_sort Kuehle, Reinald
collection PubMed
description (1) Background: In orthognathic surgery, segmental Le Fort I osteotomies are a valuable method to correct maxillary deformities or transversal discrepancies. However, these procedures are technically challenging, and osteosynthesis can be prone to error. (2) Methods: In this retrospective, monocentric cohort study, patients were enrolled who underwent a virtually planned segmental maxillary osteotomy during their combined treatment. Positioning and osteosynthesis were achieved by either a 3D-printed splint and conventional miniplates or patient-specific implants (PSI). The preoperative CT data, virtual planning data, and postoperative CBCT data were segmented. The deviation of all the segments from the desired virtually planned position was measured using the analysis function of IPS CaseDesigner. (3) Results: 28 Patients in the PSI Group and 22 in the conventional groups were included. The PSI group showed significantly lower deviation from the planned position anteroposteriorly (−0.63 ± 1.62 mm vs. −1.3 ± 2.54 mm) and craniocaudally (−1.39 ± 1.59 mm vs. −2.7 ± 3.1 mm). For rotational deviations, the pitch (0.64 ± 2.59° vs. 2.91 ± 4.08°), as well as the inward rotation of the lateral segments, was positively influenced by PSI. (4). Conclusions: The presented data show that patient-specific osteosynthesis significantly reduces deviations from the preoperative plan in virtually planned cases. Transversal expansions and vertical positioning can be addressed better.
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spelling pubmed-105324122023-09-28 Accuracy of Patient-Specific Implants in Virtually Planned Segmental Le Fort I Osteotomies Kuehle, Reinald Scheurer, Mats Bouffleur, Frederic Fuchs, Jennifer Engel, Michael Hoffmann, Jürgen Freudlsperger, Christian J Clin Med Article (1) Background: In orthognathic surgery, segmental Le Fort I osteotomies are a valuable method to correct maxillary deformities or transversal discrepancies. However, these procedures are technically challenging, and osteosynthesis can be prone to error. (2) Methods: In this retrospective, monocentric cohort study, patients were enrolled who underwent a virtually planned segmental maxillary osteotomy during their combined treatment. Positioning and osteosynthesis were achieved by either a 3D-printed splint and conventional miniplates or patient-specific implants (PSI). The preoperative CT data, virtual planning data, and postoperative CBCT data were segmented. The deviation of all the segments from the desired virtually planned position was measured using the analysis function of IPS CaseDesigner. (3) Results: 28 Patients in the PSI Group and 22 in the conventional groups were included. The PSI group showed significantly lower deviation from the planned position anteroposteriorly (−0.63 ± 1.62 mm vs. −1.3 ± 2.54 mm) and craniocaudally (−1.39 ± 1.59 mm vs. −2.7 ± 3.1 mm). For rotational deviations, the pitch (0.64 ± 2.59° vs. 2.91 ± 4.08°), as well as the inward rotation of the lateral segments, was positively influenced by PSI. (4). Conclusions: The presented data show that patient-specific osteosynthesis significantly reduces deviations from the preoperative plan in virtually planned cases. Transversal expansions and vertical positioning can be addressed better. MDPI 2023-09-18 /pmc/articles/PMC10532412/ /pubmed/37762977 http://dx.doi.org/10.3390/jcm12186038 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Kuehle, Reinald
Scheurer, Mats
Bouffleur, Frederic
Fuchs, Jennifer
Engel, Michael
Hoffmann, Jürgen
Freudlsperger, Christian
Accuracy of Patient-Specific Implants in Virtually Planned Segmental Le Fort I Osteotomies
title Accuracy of Patient-Specific Implants in Virtually Planned Segmental Le Fort I Osteotomies
title_full Accuracy of Patient-Specific Implants in Virtually Planned Segmental Le Fort I Osteotomies
title_fullStr Accuracy of Patient-Specific Implants in Virtually Planned Segmental Le Fort I Osteotomies
title_full_unstemmed Accuracy of Patient-Specific Implants in Virtually Planned Segmental Le Fort I Osteotomies
title_short Accuracy of Patient-Specific Implants in Virtually Planned Segmental Le Fort I Osteotomies
title_sort accuracy of patient-specific implants in virtually planned segmental le fort i osteotomies
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10532412/
https://www.ncbi.nlm.nih.gov/pubmed/37762977
http://dx.doi.org/10.3390/jcm12186038
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