[Genioplasty with two-step osteotomy for severe microgenia].
OBJECTIVE
To investigate a technique for correction of severe microgenia.


METHODS
The mandibular symphysis was exposed through intraoral mucous incision. Two parallel osteotomies were performed under mental foramen. The mobilized segments were advanced like two steps and fixed rigidly with miniplate.


RESULTS
From June, 2004 to Dec, 2005, 10 cases with severe microgenia were treated with this technique. The duration of follow-up was six months. The mean chin advancement was 1.1 cm and the mean chin vertical increase was 0.7 cm. All the patients healed very well with satisfactory aesthetic result.


CONCLUSIONS
With this two-step genioplasty, the chin can be moved to ideal position with a natural appearance. It is a reliable method for severe microgenia.
Luo
Jin-chao
JC
Department of Plastics and Burns, General Hospital of Beijing Military Region, Beijing 100700, China.
Gui
Lai
L
Zhang
Zhi-yong
ZY
Teng
Li
L
D000328:Adult; D002680:Chin / Q000002:abnormalities* / Q000601:surgery*; D005260:Female; D006801:Humans; D008334:Mandible / Q000002:abnormalities / Q000601:surgery*; D010027:Osteotomy; D055815:Young Adult