Effect of surgical mandibular setback on the occurrence of obstructive sleep apnea

Bimaxillary Orthognathic Surgery Does Not Induce Obstructive Sleep Apnea in Skeletal Class III Patients

“…2,4,6,9,12,13,17,25,28 According to the literature, patients who have been subjected to mandibular setback surgery may possibly suffer from sleep disorders such as OSA in the future. [2][3][4][8][9][10]12,25,28 Although OSA is a highly prevalent sleep disorder, it still remains underdiagnosed, thus undertreated. [1][2][3][4]28 The sleep disorder appears to be associated with significant behavioral problems, learning difficulties, lack of adherence, and retarded growth; in patients.…”

“…Orthognathic surgery has been the long mainstay of treatment for correcting skeletal deformities. [1][2][3][4][5][6] Despite its versatility and popularity, some studies note a possible association between orthognathic surgery and posterior airway changes, and consequently exhibiting obstructive sleep apnea (OSA). 2,[7][8][9][10][11][12][13] OSA is defined as a long-term condition, characterized by recurrent episodes of upper airway collapse during sleep.…”

Computational fluid dynamic analysis of the nasal respiratory function before and after postero-superior repositioning of the maxilla

“…Postoperative airway stenosis may have a significant impact on sleep and respiratory function [ 1 , 2 ]. Therefore, the morphological changes in the airway and the resulting alteration in nasal respiratory function have recently attracted the attention of researchers [ 3 , 4 ].…”

“…Morphological evaluation of nasal respiratory function has been performed using nasal tests [ 5 – 7 ] (e.g., rhinomanometry and acoustic rhinometry), roentgenographic cephalometric analysis [ 1 , 8 , 9 ], and computed tomography (CT) [ 3 , 10 , 11 ]. However, functional or morphological evaluation of a specific site of the airway cannot be generalized to that of the ventilation of the entire airway, owing to its morphological characteristics (i.e., long, narrow, and complicated tubular structure).…”

“…Although there is a lack of clear evidence that corrective jaw surgery causes OSA, it is clear that posterior surgical repositioning of the mandible leads to postoperative narrowing of the upper airway. Therefore, except nasopharynx, several studies have reported the relationship between stenosis of the nasal cavity, oropharynx, or hypopharynx and OSA [ 3 , 8 , 15 , 16 ]. On the other hand, in the case of maxillary skeletal prognathism (Class II), the maxilla is moved upward and/or backward or the mandible is moved forward in single-jaw surgery.…”