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Maxillofacial Plastic and Reconstructive Surgery

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Open Access 01-12-2018 | Research

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

Authors: Seung-Il Jang, Jaemyung Ahn, Jun Young Paeng, Jongrak Hong

Published in: Maxillofacial Plastic and Reconstructive Surgery | Issue 1/2018

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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Title: Three-dimensional analysis of changes in airway space after bimaxillary orthognathic surgery with maxillomandibular setback and their association with obstructive sleep apnea
Authors: Seung-Il Jang
Jaemyung Ahn
Jun Young Paeng
Jongrak Hong
Publication date: 01-12-2018
Publisher: Springer Berlin Heidelberg
Published in: Maxillofacial Plastic and Reconstructive Surgery / Issue 1/2018
Electronic ISSN: 2288-8586
DOI: https://doi.org/10.1186/s40902-018-0171-3

At a glance: The STEP trials

Springer Medicine

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

Abstract

Background

Methods

Results

Conclusions

At a glance: The STEP trials

Springer Medicine

Abstract

Background

Methods

Results

Conclusions

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Prof. Mišo Mihajlo Virag, MD, PhD, FRCS - a guiding light faded away (9.07.1946–16.08.2018)