Maxillofacial Plastic and Reconstructive Surgery

Korean Association of Maxillofacial Plastic and Reconstructive Surgeons (대한악안면성형재건외과학회)
권호 표지

THE THREE DIMENSIONAL ANALYSIS OF VOLUMETRIC AIRWAY CHANGE IN ORTHOGNATHIC SURGERY OF MANDIBULAR PROGNATHISM

하악 전돌증 환자의 악교정 수술에서 기도 공간의 부피변화에 관한 3차원적 분석

  • Lee, Jee-Ho (Department of Oral and Maxillofacial Surgery, College of Dentistry, Seoul National University) ;
  • Paeng, Jun-Young (Department of Oral and Maxillofacial Surgery, College of Dentistry, Seoul National University) ;
  • Myoung, Hoon (Department of Oral and Maxillofacial Surgery, College of Dentistry, Seoul National University) ;
  • Hwang, Soon-Jung (Department of Oral and Maxillofacial Surgery, College of Dentistry, Seoul National University) ;
  • Seo, Byoung-Moo (Department of Oral and Maxillofacial Surgery, College of Dentistry, Seoul National University) ;
  • Choi, Jin-Young (Department of Oral and Maxillofacial Surgery, College of Dentistry, Seoul National University) ;
  • Lee, Jong-Ho (Department of Oral and Maxillofacial Surgery, College of Dentistry, Seoul National University) ;
  • Choung, Pill-Hoon (Department of Oral and Maxillofacial Surgery, College of Dentistry, Seoul National University) ;
  • Kim, Myung-Jin (Department of Oral and Maxillofacial Surgery, College of Dentistry, Seoul National University)
  • 이지호 (서울대학교 치과대학 구강악안면외과학교실) ;
  • 팽준영 (서울대학교 치과대학 구강악안면외과학교실) ;
  • 명훈 (서울대학교 치과대학 구강악안면외과학교실) ;
  • 황순정 (서울대학교 치과대학 구강악안면외과학교실) ;
  • 서병무 (서울대학교 치과대학 구강악안면외과학교실) ;
  • 최진영 (서울대학교 치과대학 구강악안면외과학교실) ;
  • 이종호 (서울대학교 치과대학 구강악안면외과학교실) ;
  • 정필훈 (서울대학교 치과대학 구강악안면외과학교실) ;
  • 김명진 (서울대학교 치과대학 구강악안면외과학교실)
  • Published : 2005.12.31
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Abstract

Orthognathic surgery changes patient's mandibular position and environment of related anatomic structures. Many clinicians were interested in these changes and studied about this problem. However, most of them were based on two dimensional cephalogram. According to the development of image and computer system, it would be possible that the airway change is analyzed with three dimensional CT. So we tried to measure the volumetric change of airway and analyzed the relationship between the airway structure and volumetric change. Nineteen patients who experienced orthognathic surgery due to mandibular prognathism were analyzed with 3D CT data (preoperative and postoperative 6 months) and 2D lateral cephalometry. Volumetric change was measured and 3 dimensional change of related structure was assessed with simulation program ($V-works^{(R)}$, 4.0 Cybermed, Korea). Ten patients showed the decrease of airway volume change and nine showed the increase of airway volume change. Volumetric change was determined by dimensional change of mandible and hyoid bone. The dimensional positions of mandible and hyoid bone were the key factor for determining the airway change after surgery. Airway change is also predictable with the dimensional change of mandible and hyoid bone.

Keywords

References

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