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- Publisher Website: 10.1097/SCS.0000000000005351
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- PMID: 31299761
- WOS: WOS:000480748200090
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Article: Three-Dimensional Pharyngeal Airway Changes After 2-Jaw Orthognathic Surgery With Segmentation in Dento-Skeletal Class III Patients
Title | Three-Dimensional Pharyngeal Airway Changes After 2-Jaw Orthognathic Surgery With Segmentation in Dento-Skeletal Class III Patients |
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Authors | |
Keywords | Dento-skeletal class III Hyoid bone Orthognathic surgery Pharyngeal airway |
Issue Date | 2019 |
Publisher | Lippincott Williams & Wilkins. The Journal's web site is located at http://www.jcraniofacialsurgery.com |
Citation | Journal of Craniofacial Surgery, 2019, v. 30 n. 5, p. 1533-1538 How to Cite? |
Abstract | Purpose:
To investigate short- and long-term three-dimensional changes of pharyngeal airway morphology and hyoid bone position in dento-skeletal class III deformity patients after 2-jaw orthognathic surgery with segmentation.
Methods:
A retrospective analysis has been performed on patients with dento-skeletal class III deformity who had undergone orthognathic 2-jaw surgery with segmentations, presenting both pre- and post-surgical cone-beam computed tomographys. Three-dimensional skeletal movements, pharyngeal airway changes and hyoid bone position were measured and correlated.
Results:
The mean short term postsurgical review period for all included 47 patients was 5.8 ± 2.2 months. Thirteen patients among them provided a mean long term period of 26.4 ± 3.4 months. The mean postsurgical maxillary movement was 2.29 ± 2.49 mm in vertical, 2.02 ± 3.45 mm in horizontal direction, respectively, while the mandibular movement was 6.49 ± 4.58 mm in vertical, and −5.85 ± 6.13 mm in horizontal direction. In short-term, the vertical length of nasopharynx was found to be reduced (P = 0.005) but increased for the oropharynx (P < 0.001). Furthermore, the oropharyngeal minimum cross-sectional area has decreased significantly (P = 0.013). The hyoid bone moved posterosuperiorly, however, with only its horizontal movement found to be significant (P = 0.043). No significant result was detected in long-term analyses, neither in postsurgical pharyngeal airway changes nor the hyoid bone movement. There were no significant differences in pharyngeal airway measurements (P > 0.05) detected between patients with and without genioplasty advancement.
Conclusion:
Two-jaw orthognathic surgery in dento-skeletal class III patients led to a statistically non-significant reduction of the post-surgical airway volume in both short- and long-term. Although the post-surgical oropharyneal minimum cross-sectional area was decreased significantly in the short term, this finding did not persist in the long term. |
Persistent Identifier | http://hdl.handle.net/10722/275695 |
ISSN | 2023 Impact Factor: 1.0 2023 SCImago Journal Rankings: 0.420 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | TAN, S | - |
dc.contributor.author | Tang, A | - |
dc.contributor.author | Leung, W | - |
dc.contributor.author | Zwahlen, R | - |
dc.date.accessioned | 2019-09-10T02:47:47Z | - |
dc.date.available | 2019-09-10T02:47:47Z | - |
dc.date.issued | 2019 | - |
dc.identifier.citation | Journal of Craniofacial Surgery, 2019, v. 30 n. 5, p. 1533-1538 | - |
dc.identifier.issn | 1049-2275 | - |
dc.identifier.uri | http://hdl.handle.net/10722/275695 | - |
dc.description.abstract | Purpose: To investigate short- and long-term three-dimensional changes of pharyngeal airway morphology and hyoid bone position in dento-skeletal class III deformity patients after 2-jaw orthognathic surgery with segmentation. Methods: A retrospective analysis has been performed on patients with dento-skeletal class III deformity who had undergone orthognathic 2-jaw surgery with segmentations, presenting both pre- and post-surgical cone-beam computed tomographys. Three-dimensional skeletal movements, pharyngeal airway changes and hyoid bone position were measured and correlated. Results: The mean short term postsurgical review period for all included 47 patients was 5.8 ± 2.2 months. Thirteen patients among them provided a mean long term period of 26.4 ± 3.4 months. The mean postsurgical maxillary movement was 2.29 ± 2.49 mm in vertical, 2.02 ± 3.45 mm in horizontal direction, respectively, while the mandibular movement was 6.49 ± 4.58 mm in vertical, and −5.85 ± 6.13 mm in horizontal direction. In short-term, the vertical length of nasopharynx was found to be reduced (P = 0.005) but increased for the oropharynx (P < 0.001). Furthermore, the oropharyngeal minimum cross-sectional area has decreased significantly (P = 0.013). The hyoid bone moved posterosuperiorly, however, with only its horizontal movement found to be significant (P = 0.043). No significant result was detected in long-term analyses, neither in postsurgical pharyngeal airway changes nor the hyoid bone movement. There were no significant differences in pharyngeal airway measurements (P > 0.05) detected between patients with and without genioplasty advancement. Conclusion: Two-jaw orthognathic surgery in dento-skeletal class III patients led to a statistically non-significant reduction of the post-surgical airway volume in both short- and long-term. Although the post-surgical oropharyneal minimum cross-sectional area was decreased significantly in the short term, this finding did not persist in the long term. | - |
dc.language | eng | - |
dc.publisher | Lippincott Williams & Wilkins. The Journal's web site is located at http://www.jcraniofacialsurgery.com | - |
dc.relation.ispartof | Journal of Craniofacial Surgery | - |
dc.rights | This is a non-final version of an article published in final form in (provide complete journal citation) | - |
dc.subject | Dento-skeletal class III | - |
dc.subject | Hyoid bone | - |
dc.subject | Orthognathic surgery | - |
dc.subject | Pharyngeal airway | - |
dc.title | Three-Dimensional Pharyngeal Airway Changes After 2-Jaw Orthognathic Surgery With Segmentation in Dento-Skeletal Class III Patients | - |
dc.type | Article | - |
dc.identifier.email | Leung, W: ewkleung@hkucc.hku.hk | - |
dc.identifier.authority | Leung, W=rp00019 | - |
dc.identifier.authority | Zwahlen, R=rp00055 | - |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1097/SCS.0000000000005351 | - |
dc.identifier.pmid | 31299761 | - |
dc.identifier.scopus | eid_2-s2.0-85069805865 | - |
dc.identifier.hkuros | 303323 | - |
dc.identifier.volume | 30 | - |
dc.identifier.issue | 5 | - |
dc.identifier.spage | 1533 | - |
dc.identifier.epage | 1538 | - |
dc.identifier.isi | WOS:000480748200090 | - |
dc.publisher.place | United States | - |
dc.identifier.issnl | 1049-2275 | - |