Three-dimensional airway changes after subcranial le fort III osteotomy combined with le fort I osteotomy
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Universidade Federal de Minas Gerais
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Artigo de periódico
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Membros da banca
Resumo
The purpose of this report was to describe changes of airway
volume in nonsyndromic patients after simultaneous subcranial
Le Fort III and Le Fort I osteotomy for midface advancement
associated with bilateral sagittal split osteotomy.
11 consecutive patients were studied comparing the airway
volume, area and minimum cross-sectional area by using Dolphin
Software, before, immediately after and 18 months after surgery.
The airway space was divided in nasopharynx, oropharynx and
hypopharynx. There was an increase in the three variables ana
lysed, but statistical differences were observed in the increase
of the minimal cross-sectional area after surgery. There were no
differences between male and female patients.
In conclusion, although mandible setback should be avoided
because it has a negative effecton the air way,the midface advance
ment compensates this narrowing by maintaining or increasing the
airway volume, by advancing the palatopharyngeal arch. Linear
midface and maxillary advancement will have positive effects on
the airway volume and patency.
Abstract
Assunto
Permeability, Mandible, Surgery, oral, Face, Jaw, edentulous
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https://www.ijoms.com/article/S0901-5027(17)31139-6/fulltext