Influence of Nasal Bone Fracture and Its Reduction on the Airway

Abstract

Studies regarding nasal bone fractures have mainly focused on esthetic aspects, but the nose also plays an important role as an airway. The purpose of this study was to evaluate the influence of nasal bone fractures and the treatment of nasal bone fractures on nasal obstruction. Nasal bone fractures were classified by fracture site and septal displacement. Nasal airways were investigated at 3 time points: before reduction (n = 84), 6 days postreduction (n = 84), and 1-year postreduction (n = 27). Airway changes were based on minimal cross-sectional area measurements. The severity of airway obstruction following fracture differed according to the fracture site and the presence of septal displacement. Bilateral fractures caused more profound airway obstruction than unilateral or tip fractures and septal displacement was the most important parameter in nasal obstruction. Airway obstruction improved immediately after reduction by 21% and deteriorated by 4% 1-year postreduction.

Assessments of Nasal Bone Fracture Effects on Nasal Airflow: A Computational Fluid Dynamics Study

“…24,27 However, for a nasal cavity with possible nasal obstructions due to nasal bone fractures, a realistic bilateral 3D model including both the left and the right nasal cavities are needed because external traumas would have impaired the symmetry, which makes both side airway structures more complicated with profound obstructions. 28 Moreover, for a nasal cavity with severe bone fractures, the airway passages may also be affected by each other for both the left and the right cavities, which may be connected through large open passages, especially for complex “S”-type fractures due to strong forces at the root of the nose bilaterally. 29 Although the computational domain is enlarged and computational effort is increased, the governing equations in these two side regions still need to be coupled for accurate flow simulation results in CFD.…”

Percepção De Gestantes Sobre a Toxoplasmose

“…O tratamento bem-sucedido da obstrução nasal pós-traumática depende de uma história detalhada, análise cuidadosa e diagnóstico preciso (CHUN et al, 2009). A obstrução nasal pós-traumática está frequentemente associada com deformidades septais, hipertrofia de cornetos, formação de sinéquias e incompetência das válvulas nasais interna e externa.…”

Midface Fractures I

“…Airway obstruction is more likely in bilateral fractures and septal displacement. 10 Septal hematomas must be treated urgently; otherwise, the hematoma may lead to destruction of the septum and a saddle nose deformity. When discussing the need for surgery with the patient, it is important to consider the mechanism of injury and how likely it is to happen again.…”