Numerical Study of the Aerodynamic Effects of Septoplasty and Partial Lateral Turbinectomy

Abstract

CFD simulations promise to make great contributions to understand the airflow characteristics of healthy and pathologic noses. Before surgery, planning for any specific intervention using CFD techniques on the nasal cavity model of the patient may help foreseeing the aerodynamic effects of the operation and might increase the success rate of the surgical treatment.

Patient specific CFD models of nasal airflow: Overview of methods and challenges

“…Ozlugedik et al (2008) investigated airflow inside an SD model and its virtual surgery model by CFD with 672,941 tetrahedral cells (a coarse grid without a prism layer near the wall) and a constant flow rate of 500 mL/s. They reported changes in flow pattern, maximum velocity, and nasal resistance for pre-(with SD) and post-surgery models.…”

“…Although numerical simulation has become a fast and affordable research tool to study airflow in the human airway (Naftali et al, 1998;Lindemann et al, 2005;Elad et al, 2008;Doorly et al, 2008;Liu et al, 2009;Lee et al, 2010;Taylor et al, 2010;Na et al, 2012a), the outcome measure by CFD researches were at the beginning stage up to now. Through the review study of CFD researches on the nasal airflow in disordered and surgically modified nasal cavity models (Lindemann et al, 2005;Xiong et al, 2008; Contents lists available at SciVerse ScienceDirect journal homepage: www.elsevier.com/locate/jbiomech www.JBiomech.com Ozlugedik et al, 2008;Chen et al, 2009;Garcia et al, 2010;Leong et al, 2010;Rhee et al, 2011;Moghadas et al, 2011;Na et al, 2012a) the correlations between symptoms and fluid mechanical properties are to be compared and discussed. As the clinical applications to search for these correlations, two different groups of case studies were considered in this article; (1) the case of the nasal airway obstruction (NAO) due to the deviated nasal septum within the context of the decision-making for surgical treatment and (2) cases of turbinectomy and maxillary sinus ventilation after MMA for the simulated-and post-surgery outcome.…”

Numerical simulation of airflow and micro-particle deposition in human nasal airway pre- and post-virtual sphenoidotomy surgery

“…Surgical correction of septal deviation has been one of the common procedures in otolaryngology. Ozlugedik et al [23] and Garcia et al [24] carried out CFD studies on airflow in a nasal cavity model with septal deviation. Moghadas et al investigated the impact of septal deviation on the deposition of nano/ micro-particles in a human nasal passage using a computational modeling approach.…”

Computed nasal resistance compared with patient-reported symptoms in surgically treated nasal airway passages: A preliminary report

“…Computational fluid dynamics (CFD) techniques can be used to simulate airflow through three-dimensional (3D) reconstructions of the nasal cavity, providing highly detailed assessments of airflow patterns, pressure, and, in particular, bilateral and unilateral NR. A number of studies have been conducted using 3D nasal CFD models, some of which have focused specifically on the effects that common pathologies and surgical changes have on nasal airflow, [12][13][14][15][16][17][18][19][20][21][22][23][24][25] indicating a growing maturity in the use of CFD methods.…”