Anatomy of the Descending Palatine Artery Pertaining to LeFort I Maxillary Osteotomy

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Anatomy of the Descending Palatine Artery Pertaining to LeFort I Maxillary Osteotomy

Rajaran JR, Mohd NS, Sabeth SMSA: Anatomy of the Descending Palatine Artery Pertaining to LeFort I Maxillary Osteotomy. Mal. J. Oral Maxillofac. Surg. 2020; 18: 5–8.

Abstract: Maintaining an intact descending palatine artery during LeFort I osteotomy procedure is essential to avoid excessive intraoperative bleeding and preserving vascularity of the osteotomized segments. The aim of the study was to understand the anatomical position of the descending palatine artery pertaining to LeFort I osteotomy. The study was also designed to identify if there are any differences between the right versus left sides and male versus female samples. This was a cross sectional study which included 124 CBCT images done from 2015 to 2018. The acquired images were screened based on inclusion and exclusion criteria; 100 images were included in this study. This was followed by standardized measurements of 1) Anterior length (AL) 2) Width of pterygoid plate (WPP) 3) Depth of descending palatine canal (DDP) 4) Distance from descending palatine canal to root surface of upper second molar (DPR) and followed by statistical analysis. The mean distance of AL was 34.32mm with a shortest recorded distance of 30.61mm. Mean distance of WPP was 8.60mm with a shortest recorded distance of 5.47mm. The mean length of DPP was 13.23mm with a shortest recorded distance of 9.0mm. The mean distance of DPR was 7.42mm with a shortest recorded distance of 3.0mm. No significant differences were noted in right versus left measurements and male versus female measurements. No significant differences in distance were seen between gender and sides. Minimal distances in each reading can be used as a guide for ‘safe distance’ during LeFort 1 osteotomy.