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Related Experiment Videos

The self-retained Le Fort I osteotomy.

I R Munro1, S P Beals, G J Griffin

  • 1Humana Craniofacial Institute, Medical City Dallas, Texas 75230.

Plastic and Reconstructive Surgery
|December 1, 1987
PubMed
Summary
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A modified Le Fort I osteotomy technique reduces relapse rates by allowing bone fragment extrusion and self-retention, potentially eliminating the need for bone grafts in maxillofacial surgery.

Area of Science:

  • Oral and Maxillofacial Surgery
  • Orthognathic Surgery
  • Craniofacial Reconstruction

Background:

  • Inferior repositioning of the maxilla via Le Fort I osteotomy is associated with a high rate of relapse.
  • Existing techniques often require bone grafts to ensure stability.

Purpose of the Study:

  • To evaluate a modified bone cut technique for Le Fort I osteotomy to improve stability and reduce relapse.
  • To assess the efficacy of an oblique upward bone cut in facilitating maxillomandibular advancement.

Main Methods:

  • A modified Le Fort I osteotomy with an obliquely upward oriented bone cut was performed in 29 patients.
  • The technique allows for extrusion of the maxillary segment while maintaining bony contact.

Main Results:

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  • The modified bone cut facilitated fragment extrusion and ensured good bony contact.
  • This technique demonstrated self-retention of the bone fragment, obviating the need for bone grafts.
  • Adaptability to movements in any plane was observed.

Conclusions:

  • The modified oblique bone cut for Le Fort I osteotomy offers improved stability and reduced relapse.
  • This technique simplifies the procedure by eliminating the need for bone grafting and allowing versatile repositioning.