Neiman G S, Simpson R K
Cleft Palate J. 1975 Oct;12:377-89.
Pre-and postoperative lateral x-rays were taken of 15 candidates for adenoid removal, ranging in age from four to seven years. Cephalometric measurements were taken during rest and during function (/s/). The postoperative group acquired pharyngeal dimensions of C.P.I. proportions as a result of adenoid removal. However, all subjects achieved velopharyngeal closure and displayd no hypernasality following this surgical procedure, indicating success in terms of speech. The success in their adaptation can be attributed to the following: 1) increased velar mobility; 2) increased height of velopharyngeal closure; 3) increased percent of velar stretch; and 4) anterior movement of the posterior pharyngeal wall when amount of velopharyngeal contact became tenuous. The normal velopharyngeal mechanism has the capacity to successfully overcome the imbalance between pharyngeal dimensions and velar length caused by adenoid removal. The normal mechanism overcomes this imbalance by means of compensations, some of which are typical of the inadequate mechanism.
对15名年龄在4至7岁的腺样体切除候选人进行了术前和术后的侧面X光检查。在静息状态和功能状态（发/s/音时）进行了头影测量。术后组由于腺样体切除，获得了C.P.I.比例的咽部尺寸。然而，所有受试者在该手术后均实现了腭咽闭合，且未出现高鼻音，表明在语音方面取得了成功。他们适应成功的原因如下：1）软腭活动度增加；2）腭咽闭合高度增加；3）软腭伸展百分比增加；4）当腭咽接触量变得微弱时，咽后壁向前移动。正常的腭咽机制有能力成功克服腺样体切除导致的咽部尺寸与软腭长度之间的不平衡。正常机制通过补偿来克服这种不平衡，其中一些补偿是不充分机制所特有的。
