کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5638869 1584102 2017 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Computational fluid dynamics study of the pharyngeal airway space before and after mandibular setback surgery in patients with mandibular prognathism
ترجمه فارسی عنوان
مطالعه دینامیکی محاسباتی فضای حنجره در قبل و بعد از عمل جراحی بازسازی فک و صورت در بیماران مبتلا به دژنراسیون مندیبول
موضوعات مرتبط
علوم پزشکی و سلامت پزشکی و دندانپزشکی دندانپزشکی، جراحی دهان و پزشکی
چکیده انگلیسی
The purpose of this study was to investigate the relationship between the pressure drop in the pharyngeal airway space (ΔPPAS) and the minimum cross-sectional area (minCSA) of the pharyngeal airway before and after mandibular setback surgery using computational fluid dynamics, in order to prevent iatrogenic obstructive sleep apnoea. Eleven patients with mandibular prognathism underwent bilateral sagittal split osteotomy for mandibular setback. Three-dimensional models of the upper airway were reconstructed from preoperative and postoperative computed tomography images, and simulations were performed using computational fluid dynamics. ΔPPAS and the minCSA of the pharyngeal airway were calculated, and the relationship between them was evaluated by non-linear regression analysis. In all cases, the minCSA was found at the level of the velopharynx. After surgery, ΔPPAS increased significantly and the minCSA decreased significantly. The non-linear regression equation expressing the relationship between these variables was ΔPPAS = 3.73 × minCSA−2.06. When the minCSA was <1 cm2, ΔPPAS increased greatly. The results of this study suggest that surgeons should consider bimaxillary orthognathic surgery rather than mandibular setback surgery to prevent the development of iatrogenic obstructive sleep apnoea when correcting a skeletal class III malocclusion.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Oral and Maxillofacial Surgery - Volume 46, Issue 7, July 2017, Pages 839-844
نویسندگان
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