Abstract
Objective
To provide a new approach for the treatment of tumor in Meckel’s cave, by dissecting adjacent structures of the nasal cavity-maxillary sinus-pterygopalatine fossa-Meckel’s cave approach.
Methods
Fifteen adult cadaver heads (30 sides) were dissected and the correlated anatomic landmarks were observed, measured and analyzed in an operative route.
Results
The approach was divided into 3 steps: entering the maxillary sinus, the later pterygopalatine fossa and the final Meckel’s cave. Safe access to Meckel’s cave could be achieved by tracing the vidian neurovascular bundles and dissecting the quadrangular space (QS). The distances from the nasal columella to the apertura maxillaries, the sphenopalatine foramen, and the anterior foramen of the pterygoid canal were (44.08±2.61) mm, (64.83±2.42) mm, and (70.43±2.94) mm, respectively. The angles between the horizontal plate of the palatine bone and the link from nasal columella to apertura maxillaries, between the horizontal plate of the palatine bone and the link from nasal columella to sphenopalatine foramen were (38.10±2.46)° and (26.15±2.26)°, respectively.
Conclusion
The endoscopic approach of transnasal maxillary sinus-pterygopalatine fossa-Meckel’s cave (ENMPA) is a safe and direct way to access Meckel’s cave, and could be employed for the treatment of tumor in Meckel’s cave.
Keywords: endoscope, maxillary sinus, Meckel’s cave, neuroanatomy
摘要
目的
通过对鼻腔-上颌窦-翼腭窝-Meckel 腔入路的内镜解剖学研究, 为治疗Meckel 腔肿瘤提供新的入路选择。
方法
对15 具动静脉灌注乳胶的成人尸头标本进行模拟鼻内镜下该入路分层显微解剖, 对相关解剖标志进行了观察、 分析、 拍摄和测量。
结果
该入路分为三步: 进入上颌窦, 进入翼腭窝, 最后进入Meckel 腔。 追踪翼맜神经血맜束, 解剖分离四方形空间可安全到达Meckel 腔。 鼻小柱至上颌窦口、 蝶腭孔、 翼맜前孔距离分别为(44.08±2.61) mm、 (64.83±2.42) mm 和(70.43±2.94) mm。 鼻小柱至上颌窦口连线, 及其至蝶腭孔连线与腭骨水平板的夹角分别为(38.10±2.46)°和(6.15±2.26)°。
结论
鼻内镜下鼻腔-上颌窦-翼腭窝-Meckel腔入路是到达Meckel腔前下内面的安全且直接的入路, 可用来治疗Meckel 腔肿瘤。
关键词: 内镜, 上颌窦, Meckel 腔, 神经解剖
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