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The Distance between Nasomaxillary Groove and Bony Nasolacrimal Canal in Taiwanese - A Measurement from Sinus Computed Tomography

台灣人鼻上頜溝至骨性鼻淚管的距離-鼻竇電腦斷層掃描下的測量

摘要


背景:從鼻上頜溝到骨性鼻淚管的距離對梨狀孔的手術來說很重要。本研究的目的在測量台灣人鼻上頜溝至骨性鼻淚管在鼻竇電腦斷層掃描下的距離。方法:我們回顧從西元2011年11月至2013年10月,於台北醫學大學.萬芳醫院接受鼻竇電腦斷層掃描檢查之629名患者病歷與影像。排除條件為未滿20歲、非台灣人。本研究在鼻竇電腦斷層掃描軸向影像下,經由兩名耳鼻喉科醫師來測量鼻上頜溝連線至骨性鼻淚管前緣的距離。結果:總共有132名病患、264個骨性鼻淚管納入本研究。鼻上頜溝至骨性鼻淚管上端的平均距離為5.8±2.0公厘(範圍:1.5 - 12.6公厘)。鼻上頜溝至骨性鼻淚管下端的平均距離為8.2 ± 2.3公厘(範圍:3.6 - 14.5公厘),左右側做比較並無顯著差異,男女性做比較也無顯著差異。結論:目前為止,本研究為首篇在鼻竇電腦斷層掃描下測量鼻上頜溝至骨性鼻淚管距離的文章。本研究測量之平均距離可以提供梨狀孔的手術,例如上頜骨手術之淚前隱窩入路與鼻整形手術之外截骨術,與內視鏡鼻竇手術一個參考。

並列摘要


Background: The distance between nasomaxillary groove (NMG) and bony nasolacrimal canal (BNLC) is important in surgeries relating pyriform aperture, such as maxillary surgery using prelacrimal recess approach or rhinoplasty using external osteotomy. The purpose of this study was to measure the distance between NMG and BNLC in Taiwanese adults from axial views of sinus computed tomography (CT). Methods: We retrospectively reviewed sinus CT films of 629 patients from November 2011 to October 2013. Patients who were less than 20 years old or non- Taiwanese were excluded. The distance between NMG and the anterior border of BNLC was measured from axial views of sinus CT by two otolaryngologists. Results: There were 132 patients (74 males and 58 females), 264 BNLCs enrolled in this study. Their age ranged from 20 to 82 years old, with a mean of 48.5 ± 14.5 years. The mean distance between NMG and the upper end of BNLC was 5.8 ± 2.0 mm (range: 1.5 - 12.6 mm). The mean distance between NMG and the lower end of BNLC was 8.2 ± 2.3 mm (range: 3.6 - 14.5 mm). There were no statistically significant differences between those from right and left sides, and those from males and females. Conclusions: To the best of our knowledge, this is the first study to measure the distance between NMG and BNLC measured from sinus CT. Our data provide information for surgeries involved pyriform aperture, such as maxillary surgery using prelacrimal recess approach, rhinoplasty using external osteotomy, or endoscopic sinus surgery.

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