Endoscopic transpterygoid transmaxillary approach to the upper parapharyngeal space
10.16098/j.issn.0529-1356.2021.06.016
- Author:
Quan LIU
1
;
Juan LIU
1
;
Huan WANG
1
;
Huan-Kang ZHANG
1
;
Xi-Cai SUN
1
;
Hong-Meng YU
1
Author Information
1. Department of Otolaryngology, Eye & ENT Hospital of Fudan University
- Publication Type:Journal Article
- Keywords:
Anatomy;
Endoscopy;
Human;
Internal carotid artery;
Parapharyngeal space;
Skull base
- From:
Acta Anatomica Sinica
2021;52(6):940-944
- CountryChina
- Language:Chinese
-
Abstract:
Objective To present anatomical landmarks for endoscopic transpterygoid transmaxillary approach to the upper parapharyngeal space. Methods Anatomy of the upper parapharyngeal space using endoscopic endonasal transpterygoid transmaxillary approach was performed in cadaveric head. The distances between medial pterygoid plate, lateral pterygoid plate and styloid process were measured, respectively. The distances between lateral pterygoid plate, sphenoid spine and the entrance of carotid canal were also investigated. Results The dissection was performed in 10 fresh cadaver heads (20 sides). The distance between medial pterygoid plate, lateral pterygoid plate and styloid process were (28.1±3.3)mm and (18.9±4.9)mm respectively. The distances between lateral pterygoid plate, sphenoid spine and the entrance of carotid canal were (14.1±3.7) mm and (6.7±1.5) mm respectively. Pharyngobasilar fascia, medial pterygoid muscle and tensor veli palatini muscle were key landmarks of the upper parapharyngeal space. Conclusion The bone landmarks of lateral pterygoid plate and sphenoid spine are effective in identification of the entrance of carotid canal, which is helpful to locate the parapharyngeal segment of internal carotid artery.
