Maxillofacial Plastic and Reconstructive Surgery

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

Evaluation of Bone Resorption Rate after Nonvascularized Iliac Bone Graft for Mandibular Discontinuity Defect

하악골의 불연속 결손부 재건 시 비혈행화 장골이식술의 골흡수율에 관한 연구

  • Choi, Jin-Wook (Department of Oral and Maxillofacial Surgery, School of Dentistry, Kyungpook National University) ;
  • Lee, Chung-O (Department of Oral and Maxillofacial Surgery, School of Dentistry, Kyungpook National University) ;
  • Hwang, Hee-Don (Department of Oral and Maxillofacial Surgery, School of Dentistry, Kyungpook National University) ;
  • Kim, Jin-Wook (Department of Oral and Maxillofacial Surgery, School of Dentistry, Kyungpook National University) ;
  • Kwon, Tae-Geon (Department of Oral and Maxillofacial Surgery, School of Dentistry, Kyungpook National University) ;
  • Kim, Chin-Soo (Department of Oral and Maxillofacial Surgery, School of Dentistry, Kyungpook National University) ;
  • Lee, Sang-Han (Department of Oral and Maxillofacial Surgery, School of Dentistry, Kyungpook National University)
  • 최진욱 (경북대학교 치의학전문대학원 구강악안면외과학교실) ;
  • 이충오 (경북대학교 치의학전문대학원 구강악안면외과학교실) ;
  • 황희돈 (경북대학교 치의학전문대학원 구강악안면외과학교실) ;
  • 김진욱 (경북대학교 치의학전문대학원 구강악안면외과학교실) ;
  • 권대근 (경북대학교 치의학전문대학원 구강악안면외과학교실) ;
  • 김진수 (경북대학교 치의학전문대학원 구강악안면외과학교실) ;
  • 이상한 (경북대학교 치의학전문대학원 구강악안면외과학교실)
  • Received : 2012.05.31
  • Accepted : 2012.11.27
  • Published : 2012.11.30
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Abstract

Purpose: Mandible resection and discontinuity defect created lead to aesthetic and functional problems. The iliac crest bone graft exhibits relative ease for bone harvesting, possibility of two team approach, ability to close the wound primarily, large amount of corticocancellous bone and relatively few complications. Whereas the use of free vascularized flaps has donor site morbidity and worse-fitting bone contour, the use of nonvascularized iliac bone graft has advantages in the operation time and patients' recovery time. So, nonvascularized iliac bone graft could be an attractive option. Methods: Twenty-one patients (M:F=1:1.1) underwent iliac crest bone harvesting for reconstruction of mandibular discontinuity defect (mean length : $61.6{\pm}17.8$ mm), from May 2005 to October 2011 at the Department of Oral and Maxillofacial Surgery in Kyungpook National University. The average age was $44.1{\pm}16.4$ years and the mean follow up periods was $28.2{\pm}22.7$ months. Bone resorption rate, according to age, sex, primary lesion, location and distance of defect, type of fixation plate, time of graft and pre-operative radiation therapy, were measured in each patient. Results: The mean bone resorption rate was $16.1{\pm}9.0%$. Bone resorption rate was significantly increased in mandibular defect that is over 6 cm in size (P=0.015, P<0.05) and the cases treated pre-operative radiation therapy (P=0.017, P<0.05). All was successfully fixed and maintained for the long-term follow-up. There were a few donor site complications and almost all patients were shown favorable outcome without severe bone resorption in this study. Conclusion: The nonvascularized iliac bone graft seems to be a reasonably reliable treatment option for reconstruction of mandibular discontinuity defects.

Keywords

References

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