Postsurgical stability of oropharyngeal airway changes following counter-clockwise maxillo-mandibular advancement surgery

Página do item simplificado
dc.contributor.authorGoncalves, JR
dc.contributor.authorBuschang, P. H.
dc.contributor.authorGoncalves, D. G.
dc.contributor.authorWolford, L. M.
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionTexas A&M Univ
dc.contributor.institutionBaylor Univ
dc.date.accessioned2014-05-20T15:24:31Z
dc.date.available2014-05-20T15:24:31Z
dc.date.issued2006-05-01
dc.description.abstractPurpose: This study evaluated oropharyngeal airway changes and stability following surgical counter-clockwise rotation and advancement of the maxillo-mandibular complex.Methods and Patients: Fifty-six adults (48 females, 8 males), between 15 and 51 years of age, were treated with Le Fort I osteotomies and bilateral mandibular ramus sagittal split osteotomies to advance the maxillo-mandibular complex with a counter-clockwise rotation. The average postsurgical follow-up was 34 months. Each patient's lateral cephalograms were traced, digitized twice, and averaged to estimate Surgical changes (T2-T1) and Postsurgical changes (T3-T2).Results: During surgery, the occlusal plane angle decreased significantly (8.6 +/- 5.8 degrees) and the maxillo-mandibular complex advanced and rotated counter-clock-wise. The maxilla moved forward (2.4 +/- 2.7 mm) at ANS and the mandible was advanced 13.1 +/- 5.1 min at menton, 10 +/- 4.4 mm at point B, and 6.9 +/- 3.7 mm at lower incisor edge. Postsurgical hard tissue changes were not statistically significant. While the upper oropharyngeal airway decreased significantly (4.2 +/- 3.4 min) immediately after surgery, the narrowest retropalatal, lowest retropalatal airway, and the narrowest retroglossal airway measurements increased 2.9 +/- 2.7, 3.7 +/- 3.2, and 4.4 +/- 4.4 mm, respectively. Over the average 34 months Postsurgical period, upper retropalatal airway increased 3.9 +/- 3.7 mm, while narrowest retropalatal, lowest retropalatal airway, and narrowest retroglossal airway remained stable. Head posture showed flexure immediately after Surgery (4.8 +/- 5.9 degrees) and extension postsurgically (1.6 +/- 5.6 degrees).Conclusion: Maxillo-mandibular advancement with counter-clockwise rotation produces immediate increases in middle and lower oropharyngeal airway dimensions, which were constrained by changes in head posture but remain stable over the postsurgical period. The upper oropharyngeal airway space increased only on the longest follow-up. (C) 2006 American Association of Oral and Maxillofacial Surgeons.en
dc.description.affiliationUNESP, São Paulo, Brazil
dc.description.affiliationTexas A&M Univ, Hlth Sci Ctr, Baylor Coll Dent, Dept Orthodont, Dallas, TX USA
dc.description.affiliationTexas A&M Univ, Hlth Sci Ctr, Baylor Coll Dent, Ctr Craniofacial Res & Diag, Dallas, TX USA
dc.description.affiliationTexas A&M Univ, Hlth Sci Ctr, Baylor Coll Dent, Dept Oral & Maxillofacial Surg, Dallas, TX USA
dc.description.affiliationBaylor Univ, Med Ctr, Dallas, TX USA
dc.description.affiliationUnespUNESP, São Paulo, Brazil
dc.format.extent755-762
dc.identifierhttp://dx.doi.org/10.1016/j.joms.2005.11.046
dc.identifier.citationJournal of Oral and Maxillofacial Surgery. Philadelphia: W B Saunders Co-elsevier Inc., v. 64, n. 5, p. 755-762, 2006.
dc.identifier.doi10.1016/j.joms.2005.11.046
dc.identifier.issn0278-2391
dc.identifier.urihttp://hdl.handle.net/11449/35115
dc.identifier.wosWOS:000237372900002
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofJournal of Oral and Maxillofacial Surgery
dc.relation.ispartofjcr1.779
dc.relation.ispartofsjr0,967
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.titlePostsurgical stability of oropharyngeal airway changes following counter-clockwise maxillo-mandibular advancement surgeryen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderElsevier B.V.
unesp.author.orcid0000-0002-1987-1207[3]
unesp.author.orcid0000-0002-4935-2256[3]

Arquivos

Licença do Pacote
Agora exibindo 1 - 1 de 1
Nenhuma Miniatura disponível
Nome:
license.txt
Tamanho:
1.71 KB
Formato:
Item-specific license agreed upon to submission
Descrição:

Coleções

Artigos