Sagittal split ramus osteotomy combined with intraoral distraction osteogenesis for hemifacial microsomia
10.3760/cma.j.issn.1009-4598.2016.03.001
- VernacularTitle:下颌升支矢状劈开截骨牵引成骨术矫治半侧颜面短小畸形
- Author:
Yude DING
1
;
Bin YANG
;
Jian NI
;
Binghang LI
;
Yilin CAO
Author Information
1. 中国医学科学院北京协和医学院整形外科医院颌面整形外科中心、数字化模拟中心
- Keywords:
Hemifacial microsomia syndrome;
Mandible;
Osteotomy;
Osteogenesis,distraction
- From:
Chinese Journal of Plastic Surgery
2016;32(3):161-165
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the effect of sagittal split ramus osteotomy(SSRO) combined with distraction osteogenesis(DO) for hemifacial microsomia (HFM).Methods From January 2013 toSeptember 2015,7 cases of unilateral HFM were included in the study.The 3-dimensional reconstruction images were used for the operation design.The location of the germs and inferior alveolar nerve was marked to avoid injury.The distractor was fixed after SSRO.The distractor was distracted 2-4 mm intraoperatively and began enlongation 3-5 days after operation,1-2 mm every day until the pre-designed length attained.The patients were followed up for 3-D CT and measurement of the height of bilateral ramus.Results The enlongation length was 7 mm to 20 mm(mean,14.6 mm).The facial symmetry and occlusion plane was improved a lot.No complication occurred.The mean follow-up period was 22 months (range 17-32 months) with almost symmetrical appearance and occlusion function.Conclusions SSRO combined with DO has a good therapeutic effect and low complication for patients with HFM.The distraction rate is relatively bigh with a short treatment period.The ramus width,even thickness,are not decreased,or even can be increased after DO.
