摘要
本文观测了４８侧尸头上颌窦窦口及其周围解剖结构。发现上颌窦鼻腔开口均位于筛漏斗，其形态、大小与筛泡、钩突的发育情况有关，按形状可分为圆形或卵圆形、弯月形或肾形及月芽状或弯曲的缝隙状三类，分别占２１％、５６％、２３％；上颌窦窦腔开口均位于上颌窦内壁前囟上部；上颌窦鼻通道由窦腔开口向上或内上移行为鼻腔开口，其长度与筛泡、钩突的发育情况有关；多数上颌窦窦口上缘高于（６５％）或等于（２３％）眶底或眶内下角水平；鼻泪管后壁与上颌窦窦口前缘水平距离及与鼻底水平线夹角分别为４．２０±１．０９ｍｍ及５９±８．７°。结果提示上颌窦中鼻道开窗术或窦口开放术中，为防止发生眶损伤和鼻泪管损伤，不应咬除上颌窦自然窦口上缘及前缘组织，向下咬除时亦宜谨慎小心。此外，还讨论了上颌窦鼻腔开口类型与上颌窦炎症发生的关系。
Abstract The adjacent structures of maxillary sinus were studied on 48 adult halfhead
cadaveric specimens.The superior edge of the ostia was higher than or as high as the fundi of
orbit in 875% of the specimens.The horizontal distance was 420109mm from the posterior wall of
nasolacrimal duct to the front edge of the ostia of maxillary sinus.The posterior wall of
nasolacrimal duct was 5987 to the nasal floor.The result suggested that when performing middle
meatal antrostomies the front and superior edge of the ostia of maxillary sinus shouldn't be
excised to avoid injury of the orbit and nasolacrimal duct.\=
出处
《耳鼻咽喉（头颈外科）》
1999年第3期169-172,共4页
Chinese Arch Otolaryngology-Head Neck Surg
