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Related Experiment Videos

Improved maxillary stability with modified Lefort I technique.

R M Kaminishi, W H Davis, D A Hochwald

    Journal of Oral and Maxillofacial Surgery : Official Journal of the American Association of Oral and Maxillofacial Surgeons
    |March 1, 1983
    PubMed
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    This modified LeFort I osteotomy enhances stability by cutting higher into the maxillozygomatic bone. This technique improves bone fusion and reduces fixation needs in complex osteotomies.

    Area of Science:

    • Oral and Maxillofacial Surgery
    • Orthognathic Surgery
    • Craniofacial Reconstruction

    Background:

    • Traditional LeFort I osteotomy techniques can present challenges in achieving optimal stability.
    • Maxillomandibular fixation and dento-osseous fixation are often required, increasing surgical complexity and patient recovery time.

    Purpose of the Study:

    • To introduce and evaluate a modified LeFort I osteotomy technique.
    • To assess the stability and bone consolidation benefits of a higher horizontal bony cut into the maxillozygomatic complex.

    Main Methods:

    • A modified LeFort I osteotomy involving a superiorly placed horizontal bony cut into the dense cortical bone of the maxillozygomatic complex.
    • Application of intraosseous wiring for segment stabilization.
    • Evaluation of 23 cases including maxillary advancements, one-piece maxillary intrusions, and segmental maxillary intrusions.

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    Main Results:

    • The modified technique provided enhanced stability and a more robust bony base for fixation.
    • Reduced or eliminated the need for traditional dento-osseous or maxillomandibular fixation.
    • Observed quicker solidification of bony segments and favorable outcomes in all treated cases.

    Conclusions:

    • This modification of the LeFort I osteotomy offers superior stability and control, particularly in combined procedures.
    • It simplifies fixation requirements and promotes faster bone healing.
    • The technique demonstrates significant advantages for complex orthognathic surgical cases.