Objective: To find a surgical operation which can resume palatopharyngeal's anatomical morphology and physiological function.

寻找能恢复腭咽部解和生理功能的手方法。

To adopt the technique of Langenbeck Operation plus Cyclic Ligature in 36 palatopharyngeal patients and establish the control group.

将36例腭裂患兰氏法加环扎，并设对照组。