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Updated: Jun 26, 2026

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A Mouse Distraction Osteogenesis Model
Published on: November 14, 2018
External distraction osteogenesis in the pediatric mandible
Yoav Kaufman1, Patrick D Cole, Aisha McKnight
1Houston, Texas From the Department of Plastic Surgery, Baylor College of Medicine.
Plastic and Reconstructive Surgery
|January 1, 2009
Summary
Mandibular distraction osteogenesis effectively corrects facial asymmetry and airway obstruction in infants with micrognathia. This surgical technique, using external devices, addresses feeding and speech issues in conditions like Treacher Collins syndrome.
Area of Science:
- Craniofacial Surgery
- Pediatric Plastic Surgery
- Otolaryngology
Background:
- Micrognathia in infants, often linked to genetic syndromes, can cause significant feeding, speech, and airway obstruction issues.
- Neonatal airway compromise due to micrognathia poses a critical health risk, necessitating effective interventions.
- Facial asymmetry is a common consequence of micrognathia, impacting both function and aesthetics.
Purpose of the Study:
- To present a practical discussion of a current technique for mandibular distraction osteogenesis.
- To illustrate the application of external mandibular distraction osteogenesis in a pediatric patient.
- To highlight the benefits of bony lengthening in managing micrognathia-related complications.
Main Methods:
- External mandibular distraction osteogenesis utilizing a specialized external device.
- Surgical lengthening of the mandible to increase the dimensions of the lower jaw.
- Application of the technique in a child diagnosed with Treacher Collins syndrome.
Main Results:
- Successful bony lengthening of the mandible was achieved.
- Improved facial symmetry and occlusion were observed.
- Enhanced airway patency was established, mitigating oropharyngeal obstruction.
Conclusions:
- Mandibular distraction osteogenesis is a valuable surgical intervention for micrognathic infants.
- External distraction osteogenesis effectively corrects facial asymmetry, improves occlusion, and secures the airway.
- This technique provides a crucial solution for feeding, speech, and breathing difficulties associated with micrognathia.

