악교정수술 후 조기 재수술 증례의 분석
Clinical analysis of early reoperation cases after orthognathic surgery
이주환, 이인우, 서병무,
소속 상세정보
이주환 ( Lee Ju-Hwan ) - 서울대학교 치의학대학원 구강악안면외과학교실
이인우 ( lee In-Woo ) - 서울대학교 치의학대학원 구강악안면외과학교실
서병무 ( Seo Byoung-Moo ) - 서울대학교 치과대학 구강악안면외과학교실
KMID : 0355620100360010028
Abstract
The factors influencing the relapse and recurrence of skeletal deformity after the orthognathic surgery include various factors such as condylar deviation, the amount of mandibular set-back, stretching force by the soft tissues and muscles around the facial skeleton. The purpose of this report is to recognize and analyze the possible factors of reoperation after orthognathic surgery, due to early relapses.
Six patients underwent reoperation after the orthognathic surgeries out of 110 patients from 2006 to 2009 were included in this study. In most cases, clincal signs of the insufficient occlusal stability, anterior open bite, and unilateral shifting of the mandible were founded within 2 weeks postoperatively.
Although elastic traction was initiated in every case, inadequate correction made reoperation for these cases inevitable.
The chief complaints of five cases were the protruded mandible combined with some degree of asymmetric face and in the other one case, it was asymmetric face only. Various factors were considered as a major cause of post-operative instability such as condylar sagging, counter-clockwise rotation of the mandibular segment, soft tissue tension related with asymmetrical mandibular set-back, preoperatively existing temporomandibular disorder (TMD), poor fabrication of the final wafer, and dual bite tendency of the patients.
키워드
Relapse;Orthognathic surgery;Reoperation;Mandibular set-back
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