Zhang Shiwen, Li Xiaojiang, Liu Zongliang, Zheng Mingxiu, Wang Zhengqiang
Department of Head and Neck Surgery, the Third Affiliated Hospital of Kunming Medical College, China.
Lin Chuang Er Bi Yan Hou Ke Za Zhi. 2006 May;20(9):396-8.
To provide anatomic basis of locations of laryngeal interior structures for laryngeal operating through lateral laryngeal approaches in clinic.
Thirty cadavers laryngeal cartilage specimens (19 male and 11 female) was collected. Using pin pierced method under direct vision to locate the projections of muscle process of arytenoids cartilage and vocal fold on thyroid ala, then to observe their relationships.
The projection of vocal fold is the line that connecting a little bit superior of the middle point of anterior commissure of thyroid cartilage and the point on the crosspoint of superior 3/4 and inferior 1/4 of the posterior edge of thyroid cartilage ala. The angle of the line and anterior commissure of thyroid cartilage is sixty-five degrees. The projection of muscle process is locating on the projective line of vocal fold. The projection of pyriform fossa is locating at the posterior superior portion of thyroid cartilage ala.
The interior structures of larynx have a intact relationship of projective position on thyroid cartilage ala,which providing anatomic references for clinical surgeries relating to vocal fold through laryngeal framework.
为临床经喉外侧入路手术提供喉内部结构定位的解剖学依据。
收集30例喉软骨标本（男19例，女11例）。在直视下用针穿刺法确定杓状软骨肌突及声带在甲状软骨翼上的投影，然后观察它们之间的关系。
声带的投影为连接甲状软骨前连合中点稍上方与甲状软骨翼后缘上3/4与下1/4交点处的连线。该连线与甲状软骨前连合的夹角为65度。肌突的投影位于声带投影线上。梨状窝的投影位于甲状软骨翼后上部。
喉内部结构在甲状软骨翼上有完整的投影位置关系，为临床经喉支架进行声带相关手术提供了解剖学参考。
