Genioplasty with two-step osteotomy for severe microgenia / 中华整形外科杂志

ABSTRACT

<p><b>OBJECTIVE</b>To investigate a technique for correction of severe microgenia.</p><p><b>METHODS</b>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.</p><p><b>RESULTS</b>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.</p><p><b>CONCLUSIONS</b>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.</p>