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Related Experiment Videos

Maxillary distraction using a trans-sinusal distractor: technical note.

V Nadjmi1, R Van Erum, J Schoenaers

  • 1Department of Cranio-Maxillofacial Surgery, Eeuwfeestkliniek, Antwerp, Belgium. drnadjmi@monica.be

International Journal of Oral and Maxillofacial Surgery
|February 5, 2004
PubMed
Summary
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This pilot study demonstrates successful midface advancement in a boxer dog using distraction osteogenesis. The technique achieved complete bone healing and showed no relapse, offering potential for treating midfacial hypoplasia.

Area of Science:

  • Veterinary Surgery
  • Craniofacial Surgery
  • Regenerative Medicine

Background:

  • Midfacial hypoplasia presents challenges in surgical correction.
  • Distraction osteogenesis is a technique for bone lengthening.

Purpose of the Study:

  • To evaluate the efficacy of a novel intraoral distractor for midface advancement using distraction osteogenesis.
  • To assess bone healing and stability following maxillary advancement in a canine model.

Main Methods:

  • A modified high Le Fort I-type osteotomy was performed on a boxer dog.
  • The maxilla was distracted 14 mm over 14 days at 1 mm/day after a 5-day latency period.
  • Histological analysis of biopsies and cephalometric analysis were used to evaluate outcomes.

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Main Results:

  • Histological examination confirmed bone deposition and complete healing of the osteotomy sites.
  • Cephalometric analysis showed no relapse in the achieved sagittal advancement 14 months post-distraction.
  • The intraoral trans-sinusal distractor successfully accommodated the device within the maxillary sinus.

Conclusions:

  • This pilot study validates the principle of distraction osteogenesis for midface advancement in a canine model.
  • The novel intraoral distractor design facilitated successful maxillary advancement with complete bone regeneration and long-term stability.
  • This technique shows promise for treating midfacial hypoplasia in both pediatric and adult patients.