The analysis of intranasal anatomic variations of Korean patients with malocclusion

초록

Introduction: There are two important aspects in a relationship between malocclusion and the area of rhinology. First, there is the negative impact of nasal obstruction on normal facial growth. Second, surgical treatment of malocclusion under general anesthesia is chiefly done through nasotracheal intubation. The aim of this study is to investigate the prevalence of nasal septal deviation and concha bullosa among patients with malocclusion as common anatomical variations that can affect nasotracheal intubation in comparision with previous studies. Materials and Methods: This study was carried out on the subjects of 634 patients who underwent surgery for malocclusion. High resolution computed tomography (CT) taken preoperatively was analyzed and we measured position and angle of septal deviation and classified degree and position of pneumatization of middle concha. Results: Septal deviation was found in 402 patients (63.4%). Concha bullosa was found in 328 patients (51.7%). Both of them were found in 238 patients. Three hundred twenty-five patients had the middle concha bullosa, sorted by type into true (182), lamella (80) and bulbous type (33), while for 30 patients, combination of two or more types were observed. Discussion: This study showed that the frequency of anatomical variations affecting nasotracheal intubation was high in Korean patients with malocclusion. We emphasize that more closely preoperative evaluation is necessary for patients with malocclusion planning on surgery using nasotracheal intubation. Copyright (C) 2014, Anatomical Society of India. Published by Reed Elsevier India Pvt. Ltd. All rights reserved.

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