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。

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

恢复腭咽部解剖形态和生理功的手术方法。