摘要
目的:探讨成人正常圆孔的解剖形态,为临床提供指导。方法:通过锥形束CT(CBCT)对200个正常国人的圆孔解剖形态进行观测。结果:圆孔与蝶窦的关系分为窦旁型、窦内型、部分窦内型3类。矢状面上圆孔的走行分为3类:①斜向前下方走行;②前后向走行,平行于横断面走行;③斜向前上方走行。(斜)横断面或横断面上圆孔的走行分3类:①前外到后内方走行;②由前向后互相平行走行;③前内向后外方向走行。矢状面上圆孔前方开口的直径为(3.35±0.61)mm,后方开口的直径为(3.28±0.60)mm,长度为(6.91±1.51)mm;(斜)横断面上圆孔前方开口的直径为(3.50±0.76)mm,后方开口的直径为(3.25±0.45)mm,长度为(6.83±1.76)mm;腭大孔到圆孔前方开口的距离为(34.91±2.31)mm。结论:CBCT可以精确地观测到圆孔的解剖形态,为临床手术提供指导。
Objective： To assess the anatomical features of foramen rotundum （FR） in normal adult persons. Methods： Data of anatomy relating the FR was examined and obtained by CBCT scans of 200 normal Chinese persons. Results： Three types of position related to the FR and the sphenoid sinus were discovered： ①FR obviously within the sphenoid sinus; ②FR partly within the sphenoid sinus; ③FR outside the sphenoid sinus. In the sagittal plane, three pathways were observed： ④FR travelled in an anterior-inferior direction; ⑤FR travelled in an anterior-posterior direction, parallel to the axial plane; ⑥FR travelled in an behind-inferior direction. In the oblique axial plane or the axial plane, three pathways were observed： ⑦FR travelled from anterior-external to behind-inside; ⑧FR travelled in an anterior-poster direction, parallel to level plane;⑨FR travelled from anterior-inside to behindexternal. In the sagittal plane, the length of FR was （6.91＋1.51） mm, while the diameters of its anterior and posterior opening were （3.35＋0.61） mm and （3.28~0.60） mm respectively. In the cross-sectional plane, the length of FR was （6.83~1.76） mm, while the diameters of its anterior and posterior opening were （3.50~0.76） mm and （3.25~0.45） mm respectively. The distance between the greater palatine foramen and the FR was （34.91~2.31） mm. Conclusion：CBCT provides high quality images if we use small field of view, and may play an important role to improve the clinical performance.
出处
《口腔颌面外科杂志》
CAS
2013年第3期192-196,共5页
Journal of Oral and Maxillofacial Surgery
关键词
CBCT
圆孔
蝶窦
上颌神经阻滞麻醉
CBCT
the foramen rotundum
the sphenoid sinus
maxillary nerve block anesthesia
