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剖形态和生理功能的手术方法。

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

将36例腭裂患者选用兰氏法加环扎，并设对照组。