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Rapid maxillary distraction protocol utilizing the halo distraction system and rigid internal fixation
Stephen B Baker1, Russell R Reid, Brooke Burkey
1Georgetown University Hospital, Washington, DC, USA.
Summary
This study introduces a new protocol for maxillary distraction using a halo system and rigid fixation, significantly reducing head frame wear time to 1-2 weeks. The method ensures excellent occlusion and minimal skeletal relapse after 1 year.
Area of Science:
- Craniofacial surgery
- Orthognathic surgery
- Distraction osteogenesis
Background:
- Maxillary retrusion in cleft lip/palate patients often requires significant surgical correction.
- External halo distraction (HD) is effective but associated with prolonged head frame wear.
- Integrating rigid internal fixation aims to shorten treatment duration and improve outcomes.
Observation:
- A modified protocol combined maxillary distraction with plate fixation in five patients with cleft lip/palate and severe maxillary retrusion (>8 mm).
- The protocol involved a short latency period, distraction, and simultaneous removal of the halo device with rigid internal fixation.
- Maxillomandibular fixation (MMF) was used in two patients to maintain occlusion during callus maturation.
Findings:
- The mean maxillary advancement was 10.6 mm, with minimal (<1 mm) skeletal relapse observed at 1-year follow-up.
- All patients achieved excellent occlusion.
- The halo device wear time was reduced to 1-2 weeks.
Implications:
- This integrated approach combines the benefits of distraction osteogenesis for significant advancement with the precision of orthognathic surgery.
- Reduced external hardware wear improves patient comfort and compliance.
- Rigid fixation minimizes relapse and nonunion rates, offering a more stable and predictable outcome for maxillary retrusion correction.
