CLINICAL STUDY OF VELOPHARYNGEAL CLOSURE AFTER THE PRIMARY PALATORRHAPHY IN CLEFT PALATE PATIENTS

구개열(口蓋裂) 환자(患者)에 있어서 구개(口蓋) 성형술후(成形術後) 비인강(鼻咽腔) 폐쇄(閉鎖)에 관(關)한 임상적(臨床的) 연구(硏究)

  • Koh, Kwang-Hee (Dept. of Oral & Maxillofacial Surgery, College of Dentistry Chonbuk National University) ;
  • Shin, Hyo-Keun (Dept. of Oral & Maxillofacial Surgery, College of Dentistry Chonbuk National University)
  • 고광희 (전북대학교 치과대학 구강악안면외과학교실) ;
  • 신효근 (전북대학교 치과대학 구강악안면외과학교실)
  • Published : 1992.03.31

Abstract

In order to find the causes of velopharyngeal incompetency after primary palatorrhaphy in cleft patients, we analyzed the form and function of the velopharyngeal space of fifteen operated cleft palate patients and five normal subjects. The velopharyngeal function was evaluated by lateral cephalometric radiography, velopharyngography and hypernasality cul-de-sac test. The obtained results were as follows. 1. The rate of velopharyngeal incompetency was twenty percent, three of the fifteen operated patients. Two of them were complete cleft palate and the other was incomplete one. 2. The length of soft palate and levator eminence were longer in normal group than those of good speech group and complete cleft palate group during phonation of /i/ (P<0.05). The lengthening rate of soft palate was smaller in good and poor speech group than that of normal group(P<0.05), and, reduced in order, normal group, complete cleft palate group and incomplete palate group(P<0.05). 3. The nasopharyngeal distance had no significant difference between all groups at rest, but, smaller in normal group than that of both cleft palate group(P<0.05), good speech group and poor speech group(P<0.05) during phonation of /i/ The difference in nasopharyngeal distance between rest and /i/ phonation was greater in normal group than that of both cleft palate group, good speech group and poor speech group. 4. The moving distance of sop palate reduced in order, normal group, incomplete cleft palate group, complete cleft palate group(P<0.05). 5. The distance between lateral pharyngeal wall had no significant difference between all groups in rest, but, smaller than that of complete cleft palate group in normal group(P<0.01) and increased in order normal group, good speech group, poor speech group(P<0.01) during phonation of /a/. The mobility of lateral wall was reduced in order, normal group, good speech group poor speech group(P<0. 01). 6. There was low corelationship between the mobility of lateral pharyngeal wall and soft palate. Therfore, it suggest that the movements of lateral pharyngeal wall and soft palate occurs independently.

Keywords