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The influence of maxillary osteotomy on nasal airway patency and geometry

Der Einfluß der Oberkieferosteotomie auf Durchlässigkeit und Geometrie des nasalen Luftweges

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Summary

Maxillary surgical repositioning affects nasal airway size. This study recorded ansal airway changes by acoustic rhinometry in patients with maxillary surgical repositioning after Le Fort I osteotomies. These changes were compared to the amount of skeletal movement by means of preoperative and 6-week postoperative lateral cephalography. Vertical linear movement of the posterior maxilla showed a very close relationship to volume changes in the posterior nasal segment. Anterior nasal volume changes can not be considered as a pure function of the direction and amount of skeletal movement. The greatest amount of cranial displacement tolerated without impaired nasal patency in this study was 7 mm.

Zusammenfassung

Umstellungsosteotomien der Maxilla beeinflussen zwangsläufig auch die unmittelbar benachbarten nasalen Atemwege. In dieser Studie wurden Veränderungen der Nasenhöhle durch Oberkieververlagerungen nach Le Fort-I-Osteotomien anhand einer akustischer Rhinometrie aufgezeichnet. Das Ausmaß der skelettalen Verlagerung kephalometrisch bestimmter Referenzpunkte wurde mit reflexionsakustisch ermittelten Volumenveränderungen verglichen. Für die vertikale Verlagerung der posterioren Maxilla ergab sich eine signifikante Korrelation zur akustisch festgestellten Volumenveränderung der hinteren Nasenhaupthöhle. Die Veränderungen der vorderen Nasenhöhle lassen sich nicht unmittelbar mit dem Ausmaß der skelettale Verlagerung korrelieren. Ohne Behinderung der Nasenatmung wurden in dieser Studie Kranialverlagerungen des Nasenbodens bis zu 7 mm toleriert.

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Kunkel, M., Hochban, W. The influence of maxillary osteotomy on nasal airway patency and geometry. Mund Kiefer GesichtsChir 1, 194–198 (1997). https://doi.org/10.1007/BF03043550

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