Three-dimensional analysis of changes in airway space after bimaxillary orthognathic surgery with maxillomandibular setback and their association with obstructive sleep apnea

Abstract Background Bimaxillary orthognathic surgery with maxillomandibular setback is often accompanied by changes in airway space. We analyzed the changes in airway space before and after surgery and assessed their association with obstructive sleep apnea. Methods This study is based on the cohort...

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Main Authors: Seung-Il Jang, Jaemyung Ahn, Jun Young Paeng, Jongrak Hong
Format: Article
Language:English
Published: SpringerOpen 2018-11-01
Series:Maxillofacial Plastic and Reconstructive Surgery
Subjects:
Online Access:http://link.springer.com/article/10.1186/s40902-018-0171-3
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author Seung-Il Jang
Jaemyung Ahn
Jun Young Paeng
Jongrak Hong
author_facet Seung-Il Jang
Jaemyung Ahn
Jun Young Paeng
Jongrak Hong
author_sort Seung-Il Jang
collection DOAJ
description Abstract Background Bimaxillary orthognathic surgery with maxillomandibular setback is often accompanied by changes in airway space. We analyzed the changes in airway space before and after surgery and assessed their association with obstructive sleep apnea. Methods This study is based on the cohort of 13 adult patients (9 males, 4 females, average age 23.85 years) who underwent bimaxillary orthognathic surgery with maxillomandibular setback. We performed computed tomography and portable polysomnography before and after the surgery to assess changes in airway space and Apnea-Hypopnea Index (AHI) values (total, supine, non-supine). Results The oropharyngeal airway volume decreased by 29% after the surgery, which was statistically significant (p < .05). The upper airway volume and hypopharyngeal airway volume were decreased, but not significantly (4 and 19%, respectively). The changes in airway surface area were statistically significant at all levels examined (p < .05). Changes in the maximum anteroposterior width of the airway were also significant at all levels (p < .05). However, the changes in maximum lateral width were only statistically significant at C2 level (p < .05). AHI values were increased after the surgery but not significantly at any position. Conclusions Although bimaxillary surgery with maxillomandibular setback significantly reduces the airway space, it does not affect AHI values or induce obstructive sleep apnea.
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spelling doaj.art-664fd1d05355463ca1870261c0f5afe62022-12-22T02:15:12ZengSpringerOpenMaxillofacial Plastic and Reconstructive Surgery2288-85862018-11-0140111110.1186/s40902-018-0171-3Three-dimensional analysis of changes in airway space after bimaxillary orthognathic surgery with maxillomandibular setback and their association with obstructive sleep apneaSeung-Il Jang0Jaemyung Ahn1Jun Young Paeng2Jongrak Hong3Department of Oral and Maxillofacial Surgery, Samsung Medical Center, Sungkyunkwan University School of MedicineDepartment of Oral and Maxillofacial Surgery, Samsung Medical Center, Sungkyunkwan University School of MedicineDepartment of Oral and Maxillofacial Surgery, Samsung Medical Center, Sungkyunkwan University School of MedicineDepartment of Oral and Maxillofacial Surgery, Samsung Medical Center, Sungkyunkwan University School of MedicineAbstract Background Bimaxillary orthognathic surgery with maxillomandibular setback is often accompanied by changes in airway space. We analyzed the changes in airway space before and after surgery and assessed their association with obstructive sleep apnea. Methods This study is based on the cohort of 13 adult patients (9 males, 4 females, average age 23.85 years) who underwent bimaxillary orthognathic surgery with maxillomandibular setback. We performed computed tomography and portable polysomnography before and after the surgery to assess changes in airway space and Apnea-Hypopnea Index (AHI) values (total, supine, non-supine). Results The oropharyngeal airway volume decreased by 29% after the surgery, which was statistically significant (p < .05). The upper airway volume and hypopharyngeal airway volume were decreased, but not significantly (4 and 19%, respectively). The changes in airway surface area were statistically significant at all levels examined (p < .05). Changes in the maximum anteroposterior width of the airway were also significant at all levels (p < .05). However, the changes in maximum lateral width were only statistically significant at C2 level (p < .05). AHI values were increased after the surgery but not significantly at any position. Conclusions Although bimaxillary surgery with maxillomandibular setback significantly reduces the airway space, it does not affect AHI values or induce obstructive sleep apnea.http://link.springer.com/article/10.1186/s40902-018-0171-3Bimaxillary orthognathic surgeryMaxillomandibular setbackMaxillary setbackMandibular setbackAirway spaceApnea-Hypopnea Index
spellingShingle Seung-Il Jang
Jaemyung Ahn
Jun Young Paeng
Jongrak Hong
Three-dimensional analysis of changes in airway space after bimaxillary orthognathic surgery with maxillomandibular setback and their association with obstructive sleep apnea
Maxillofacial Plastic and Reconstructive Surgery
Bimaxillary orthognathic surgery
Maxillomandibular setback
Maxillary setback
Mandibular setback
Airway space
Apnea-Hypopnea Index
title Three-dimensional analysis of changes in airway space after bimaxillary orthognathic surgery with maxillomandibular setback and their association with obstructive sleep apnea
title_full Three-dimensional analysis of changes in airway space after bimaxillary orthognathic surgery with maxillomandibular setback and their association with obstructive sleep apnea
title_fullStr Three-dimensional analysis of changes in airway space after bimaxillary orthognathic surgery with maxillomandibular setback and their association with obstructive sleep apnea
title_full_unstemmed Three-dimensional analysis of changes in airway space after bimaxillary orthognathic surgery with maxillomandibular setback and their association with obstructive sleep apnea
title_short Three-dimensional analysis of changes in airway space after bimaxillary orthognathic surgery with maxillomandibular setback and their association with obstructive sleep apnea
title_sort three dimensional analysis of changes in airway space after bimaxillary orthognathic surgery with maxillomandibular setback and their association with obstructive sleep apnea
topic Bimaxillary orthognathic surgery
Maxillomandibular setback
Maxillary setback
Mandibular setback
Airway space
Apnea-Hypopnea Index
url http://link.springer.com/article/10.1186/s40902-018-0171-3
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