摘要
目的 为内窥镜下中鼻道上颌窦开窗提供解剖学参数。方法 在 2 0个尸体头颅上观测上颌窦窦口、鼻囟门及其毗邻结构。结果 ①上颌窦内口紧邻眶下壁 ,距离 (3 72± 0 6 3)mm ;鼻内开口与眶底最低处平行或高于该平面 ,矢状位上与眶纸板同处一垂面或居于其内侧。②上颌窦鼻内开口距离鼻泪管 (5 5 0± 3 73)mm。③鼻囟门上下径 (11 72± 2 10 )mm、前后径 (16 75± 6 30 )mm、厚度 (3 0 0± 0 6 8)mm、前界距离鼻泪管 (3 44± 0 75 )mm、后缘距鼻后外侧动脉 (8 79± 1 0 0 )mm ;鼻小柱基部至鼻囟门后缘为 (5 4 32±3 15 )mm。④眶下壁与下鼻甲上缘之间 ,随着移向下鼻甲后端 ,距离逐渐增宽。结论 上颌窦窦口及鼻囟门与眼眶和鼻泪管关系密切 ,内窥镜下中鼻道行上颌窦开窗 ,可沿下鼻甲上缘寻找窦口 ,咬除鼻囟门扩大窦口的安全方向为向下和向后 ,向前不能超过 5mm ,防止眼眶和泪道并发症的发生 ;
Objective\ To provide anatomic parameter for performing the middle meatus antrostomy under endoscope. Methods\ In 20 adult cadaver dissections, the anatomy of the nasal fontaneles and the natural ostium of the maxilllary sinus and their adjacent structures were observed. Results\ Maxillary ostium lies in the anterior nasal fontaneles. It is located in the equal rank with the lamina papyracea. The average distance is (372±0630)mm from the maxillary ostium to the inferior orbital wall and (550±373)mm from the maxilary ostium to the nasolacrimal duct. The size of the nasal fontanelle is (1675±630)mm in length,(1172±210)mm high and 3 mm of thickness. There were close anatomic relationships between the nasolacrimal duct and uncitate process. Conclusion\ Injury to lamina papyracea can occur during ostium expanding operation. Enlarging this area should go towards posterior and inferior regions.
出处
《安徽医科大学学报》
CAS
2000年第5期341-343,共3页
Acta Universitatis Medicinalis Anhui
基金
安徽省卫生厅政策性资助课题! (编号 :95 0 48)
