Maxillofacial Plastic and Reconstructive Surgery

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

Switching Genioplasty- a New Genioplasty Technique in Order to Resolve Asymmetry of Chin Area: Case Report

이부 비대칭 치료를 위한 새로운 이부 성형술의 소개 - 전환 이부성형술: 증례보고

  • Seo, Hyun-Soo (Department of Oral & Maxillofacial Surgery, Kang-dong Sacred Heart Hospital, College of Medicine, Hallym University) ;
  • Lee, Young-Joo (Department of Oral & Maxillofacial Surgery, Kang-dong Sacred Heart Hospital, College of Medicine, Hallym University) ;
  • Byeon, Kwang-Seob (Department of Oral & Maxillofacial Surgery, Kang-dong Sacred Heart Hospital, College of Medicine, Hallym University) ;
  • Hong, Soon-Min (Department of Oral & Maxillofacial Surgery, Kang-dong Sacred Heart Hospital, College of Medicine, Hallym University) ;
  • Park, Jun-Woo (Department of Oral & Maxillofacial Surgery, Kang-dong Sacred Heart Hospital, College of Medicine, Hallym University) ;
  • Hong, Ji-Sook (Department of Clinical Orthodontics, Kang-dong Sacred Heart Hospital, College of Medicine, Hallym University) ;
  • Park, Yang-Ho (Department of Clinical Orthodontics, Kang-dong Sacred Heart Hospital, College of Medicine, Hallym University)
  • 서현수 (한림대학교 의과대학 강동성심병원 구강악안면외과학교실) ;
  • 이영주 (한림대학교 의과대학 강동성심병원 구강악안면외과학교실) ;
  • 변광섭 (한림대학교 의과대학 강동성심병원 구강악안면외과학교실) ;
  • 홍순민 (한림대학교 의과대학 강동성심병원 구강악안면외과학교실) ;
  • 박준우 (한림대학교 의과대학 강동성심병원 구강악안면외과학교실) ;
  • 홍지숙 (한림대학교 의과대학 강동성심병원 치과교정학교실) ;
  • 박양호 (한림대학교 의과대학 강동성심병원 치과교정학교실)
  • Received : 2010.08.04
  • Accepted : 2010.11.10
  • Published : 2011.01.31
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Abstract

Conventional slinding genioplsty has the risk of mental nerve injury after operation and difficult to correct vertical asymmetry of chin. So, authors propose a new genioplasty to correct asymmetry of chin. Switching genioplasty is a modification method of conventional genioplasty. Between mandibular right and left canine, osteotomy line of triangular shape make until mandibular lower border. In large side, osteotome line of wedge shape is added to reduction. After osteotomy, segment of wedge shape was separated from chin. Distal segment was rotated to reduction side. Because of rotation of distal segment, space is made in opposite side. Seperated segement of wedge shape from large side is switched this space to fill. So, stability of distal segment is achieved. Authors applied to swiching genioplasty the patients who was remained the chin asymmetry after both sagittal split ramus osteotome was done because mandible asymmetry. After operation, patient and operator were satisfied with excellent esthetic results without any other complication. The switching genioplasty is effective surgical technique for chin asymmetry because it has more advantages than conventional sliding genioplasty. First, other donor side does not need for bone graft. Second, the switching genioplasty can reduce infection, bone resroption, dehiscence, capsular contraction after allograft. Third, have little mental nerve damage. Forth, anteroposterior correction is possible. Fifth, operation time is less than other genioplasty for chin asymmetry.

Keywords

References

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