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[Genioplasty with two-step osteotomy for severe microgenia]
Jin-chao Luo1, Lai Gui, Zhi-yong Zhang
1Department of Plastics and Burns, General Hospital of Beijing Military Region, Beijing 100700, China.
Summary
This study presents a reliable two-step genioplasty technique for correcting severe microgenia. The method effectively advances the chin to an ideal position, achieving satisfactory aesthetic results.
Area of Science:
- Oral and Maxillofacial Surgery
- Plastic Surgery
- Aesthetic Surgery
Background:
- Severe microgenia presents aesthetic and functional challenges.
- Existing correction techniques may have limitations.
Purpose of the Study:
- To evaluate a novel two-step genioplasty technique for severe microgenia correction.
- To assess the efficacy and aesthetic outcomes of this surgical approach.
Main Methods:
- Intraoral incision to expose the mandibular symphysis.
- Two parallel osteotomies performed below the mental foramen.
- Segmental advancement and rigid fixation with miniplates.
Main Results:
- 10 patients with severe microgenia treated between June 2004 and December 2005.
- Mean chin advancement of 1.1 cm and vertical increase of 0.7 cm.
- All patients achieved excellent healing and satisfactory aesthetic results after a six-month follow-up.
Conclusions:
- The two-step genioplasty is a reliable method for correcting severe microgenia.
- This technique allows for precise chin repositioning to achieve natural-looking results.
- Offers a dependable surgical solution for patients with significant chin deficiency.

