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Lengthening the human mandible by gradual distraction
J G McCarthy1, J Schreiber, N Karp
1New York University Medical Center Institute of Reconstructive Plastic Surgery, N.Y.
Plastic and Reconstructive Surgery
|January 1, 1992
Summary
Gradual mandibular lengthening using distraction osteogenesis in young patients achieved significant bone growth (18-24 mm). This technique shows promise for early craniofacial reconstruction without grafts or transfusions.
Area of Science:
- Craniofacial surgery
- Orthodontics
- Pediatric dentistry
Background:
- Mandibular hypoplasia presents significant challenges in pediatric patients.
- Early intervention is crucial for optimal craniofacial development.
- Traditional surgical methods often require complex procedures and prolonged recovery.
Observation:
- Four young patients (average age 78 months) underwent gradual mandibular lengthening via distraction osteogenesis.
- Bone lengthening ranged from 18 to 24 mm.
- One patient with Nager syndrome received bilateral mandibular expansion.
Findings:
- External fixation was maintained for an average of 9 weeks to ensure ossification.
- Post-procedure follow-up (11-20 months) included clinical, dental, photographic, and radiographic assessments.
- Successful mandibular bone regeneration was observed in all patients.
Implications:
- Distraction osteogenesis offers a viable alternative for early mandibular reconstruction in pediatric patients.
- This technique potentially avoids the need for bone grafts, blood transfusions, and intermaxillary fixation.
- It facilitates improved facial aesthetics and function in children with craniofacial defects.