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扎，并设对照组。

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

找能恢复腭咽形态和生理功能的手术方法。