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

寻找恢复腭咽部解剖形态和生理功手法。

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

36例腭裂患者选用兰氏法加环扎，并设对照组。