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[Distraction osteogenesis of the mandibular ramus in hemifacial microsomia].

AbstractOBJECTIVE:
To study the application of distraction osteogenesis (DO) of the mandibular ramus in hemifacial microsomia.
METHODS:
From 1999 to 2006, 15 patients with hemifacial microsomia were treated with DO of the ramus, including 12 cases of children and juveniles, 3 cases of grown-ups. Maxillary Le Fort I osteotomy, unilateral sagittal split ramus osteotomy, genioplasty and free scapular flaps were selected to perform on the first or secondary stage of treatment.
RESULTS:
Successful distraction was achieved in all patients with an average distraction distance of 21.25 mm. The distractor was removed after consolidation proved by clinical examination and X-ray. Facial appearance and and occlusal relationship were improved greatly. The occlusal plane was almost normal. There was no infection, malunion or permanent injury of inferior alveolar nerve.
CONCLUSIONS:
DO of the ramus is very effective for the correction of severe hemifacial microsomia. It has much better therapeutic effect than traditional orthognathic procedures.
AuthorsZhi-cheng Yang, Xing Wang, Biao Yi, Zi-li Li, Cheng Liang, Xiao-xia Wang
JournalZhonghua zheng xing wai ke za zhi = Zhonghua zhengxing waike zazhi = Chinese journal of plastic surgery (Zhonghua Zheng Xing Wai Ke Za Zhi) Vol. 25 Issue 2 Pg. 104-7 (Mar 2009) ISSN: 1009-4598 [Print] China
PMID19558162 (Publication Type: Evaluation Study, Journal Article)
Topics
  • Adolescent
  • Adult
  • Child
  • Child, Preschool
  • Facial Asymmetry (surgery)
  • Female
  • Humans
  • Male
  • Mandible (surgery)
  • Osteogenesis, Distraction (methods)
  • Young Adult

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