内耳门

结果：横窦乙状窦膝至内耳门后缘的距离约为（35.1±0.2）mm。

Results : The distance between knee of transverse sigmoid sinus and posterior border of internal acoustic porus was ( 35.1 ± 0.2 ) mm .

内耳门后下缘到乙状窦后缘中点的距离左侧为（32.15±1.76）mm，右侧为（33.34±1.57）mm；

The distance from the posterior inferior edge of internal ear port to the central point of the posterior edge of the sigmoid sinus was ( 32.15 1.76 ) mm on the left , and ( 33.34 1.57 ) mm on the right ;

内耳门至颈静脉孔的距离为5.4mm。

The distance between internal acoustic porus and jugular foramen was 5.4 mm .

AICA袢与内耳门关系密切，80%穿过面、蜗神经。

The ( AICA ) loop was closely associated with the internal auditory foramen , and 80 % penetrates between facial nerve and auditory nerve .

SSD能清晰显示颞骨重要的骨性结构，如内耳门、前庭导水管外口等，冠状位切割后的SSD图像能生动地显示锤骨、砧骨的立体形态及空间关系；

The SSD images could show the important bony marks of temporal bone and the spatial relationships between them perspicuously . The coronal dissected images of SSD can vividly demonstrate the shape and the spatial relationships of malleus and incus .

国人内耳门的应用解剖学研究

The Applied Anatomic Study of Internal Auditory Pore of the Chinese

内耳门长径为10.19mm，宽径为5.03mm；

The mean length is 10 . 19 mm ; the mean breadth is 5.03 mm .

目的：研究内耳门周结构对颞骨径路内镜下处理脑桥小脑三角区病变手术的影响，为临床开展相应手术提供参考。

Objective : To study the effects of surrounding structures of internal acoustic pore on petroclival surgery aided by endoscope .

内耳门后唇隆起合并小脑下前动脉袢在Ⅶ、Ⅷ脑神经之外侧者占7.5%（3侧）。内固定后感染5例。

Both of them occurred in 3 sides ( 7.5 % ) . The other five cases were infected nonunion after internal fixation .

结果：内耳门后唇隆起超过面神经脑桥小脑角段1/3以上者占27.5%（11侧）。

Results : In 11 sides ( 27.5 % ), posterior lips of internal acoustic pore covered 1 / 3 or more facial nerve .

结果：A组40例中能较清楚地显示内耳门与前床突影，便于勾画耳-床线的19例；

Results : In group A 19 cases apparently show the image of the internal acoustic pore and the anterior clinoid process , and are easy to draw the lines between the two points .

两破裂孔、两颈内动脉、两内耳门、两颈静脉孔间最小间距分别为20.2、14.0、30.5和23.3mm。

The smallest distance between the left and right sides of foramen lacerum , carotid canal , internal acoustic port , and jugular foramen were 20.2 , 14.0 , 30.5 and 23.3 mm respectively .

方法对20具甲醛固定的成人尸颅进行测量，确定翼点、颧弓点至颅中窝各结构及面神经管裂孔至弓状隆起、内耳门、棘孔的夹角和距离。

METHODS The length of lines linking pterion and zygion to the structures in fossa cranii media and the angles between these lines and median vector were measured in 20 adult head cadavers fixed with formalin .

结论熟悉内耳门及周围结构的显微解剖，有助于手术中保护重要结构，为听神经瘤手术中保留面、听神经功能提供了解剖学基础。

Conclusion Thorough knowledge of the microanatomy of the internal auditory meatus and its surrounding structures is of crucial importance to preserve the functions of the cranial nerves ⅶ and ⅷ in the surgical removal of acoustic neuroma .

在模型中测量内耳门后唇中点到总骨脚根以及颈静脉球顶的距离。

The distances from the midpoint of the posterior edge of the internal auditory canal ( IAC ) to the root of the common body crus or to the tip of the jugular bulb were measured in the model .

结果斜坡区与脑桥、延髓腹侧及第Ⅴ～Ⅻ对脑神经关系密切，两侧毗邻破裂孔、颈内动脉、内耳门及颈静脉孔。

Results Clival region had closing relationship to pons , ventral medulla oblongata and the ⅴ~ⅻ cranial nerves . In the two sides of clival region , there were foramen lacerum , carotid canal , internal acoustic port , jugular foramen .

方法：在20例40侧成人尸头上模拟颞骨径路内窥镜手术，观察小脑下前动脉及内耳门后唇的变异，了解其对内窥镜导入及其手术的影响。

Method : To simulate the surgery in 20 adult cadaveric specimens ( 40 sides ), observe anterior inferior cerebellar artery and posterior lip of internal acoustic pore , and study the effect of them on cerebellopontine angle surgery aided by endoscope .