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Palatal distraction in a canine cleft palate model
J A Ascherman1, V P Marin, L Rogers
1Department of Surgery, Columbia-Presbyterian Medical Center, Columbia University College of Physicians and Surgeons, New York, NY 10032, USA. jaa@columbia.edu
Plastic and Reconstructive Surgery
|May 16, 2000
Summary
Distraction osteogenesis effectively lengthened canine hard palates in a cleft model using submucosal devices. This technique shows promise for treating velopharyngeal incompetence in humans.
Area of Science:
- Oral and Maxillofacial Surgery
- Regenerative Medicine
- Veterinary Medicine
Background:
- Cleft palate affects hard palate structure.
- Velopharyngeal incompetence is a common complication.
- Current treatments have limitations.
Purpose of the Study:
- To evaluate distraction osteogenesis for canine hard palate lengthening.
- To test a mostly submucosal distractor device.
- To simulate a cleft palate bony defect.
Main Methods:
- Surgically created a canine cleft palate model.
- Utilized a mostly submucosal intraoral distractor.
- Expanded the distractor daily over 15 days (10.125 mm total).
- Performed radiographic and histologic analysis.
Main Results:
- New bone formation observed at distraction sites in all dogs.
- Histologic examination confirmed new bone using H&E and Masson's trichrome stains.
- Radiographs showed successful hard palate lengthening.
Conclusions:
- Distraction osteogenesis with a submucosal device is effective for hard palate lengthening in a canine model.
- This technique offers a precise, low-morbidity alternative for treating velopharyngeal incompetence.
- Further research may translate this to human clinical applications.