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Multiple-segment osteotomy in maxillofacial surgery.

Y R Chen1, V K Yeow

  • 1Craniofacial Center, Chang Gung Memorial Hospital, Taipei, Taiwan. uraychen@adm.cgmh.com.tw

Plastic and Reconstructive Surgery
|February 2, 2000
PubMed
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Multiple-segment osteotomy effectively corrects dentofacial deformities and malocclusions. This orthognathic surgery approach offers stable results in a shorter treatment time with minimal complications.

Area of Science:

  • Oral and Maxillofacial Surgery
  • Orthodontics
  • Surgical Innovation

Background:

  • Multiple-segment osteotomy involves dividing the jawbone into three or more sections.
  • It combines large-segment orthognathic surgery with segmental techniques for complex cases.
  • Indications include dentofacial deformities and malocclusions needing stable, timely correction.

Purpose of the Study:

  • To evaluate the efficacy and stability of multiple-segment osteotomy.
  • To assess complication rates and treatment duration.
  • To analyze outcomes in patients with various dentofacial deformities.

Main Methods:

  • Retrospective analysis of 85 patients undergoing multiple-segment osteotomy (1991-1997).
  • Procedures included Le Fort I, anterior segmental, palatal split, and posterior segmental osteotomies.

Related Experiment Videos

  • Follow-up ranged from 6 months to 7 years.

    • Main Results:

    • Successful correction of maxillary protrusion/deformity (31), mandibular prognathism (51), and maxillary retrusion (3).
    • High stability of osteotomized segments observed.
    • Overall treatment time averaged 15 months, significantly shorter than traditional methods.
    • Minimal complications: 1 partial gingival loss, 2 inferior mental paresthesias.

    Conclusions:

    • Multiple-segment osteotomy is a safe and effective technique for correcting a wide spectrum of dentofacial deformities.
    • The procedure yields stable results and reduces overall treatment time.
    • It presents a favorable option with a low complication rate.