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Modified sagittal split technique for patients with a high lingula.

G J Nishioka1, S B Aragon

  • 1Clinical Faculty (WOC), Department of Oral and Maxillofacial Surgery, University of Texas Health Science Center, San Antonio 78284-7908.

Journal of Oral and Maxillofacial Surgery : Official Journal of the American Association of Oral and Maxillofacial Surgeons
|April 1, 1989
PubMed
Summary

Unfavorable fractures during sagittal ramus split osteotomy, though rare, can be predicted by thin mandibular rami or high lingula anatomy. A modified surgical technique helps prevent these fractures in at-risk patients.

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Area of Science:

  • Oral and Maxillofacial Surgery
  • Anatomical Risk Factors in Osteotomy
  • Surgical Technique Modifications

Background:

  • Unfavorable fractures of the proximal fragment during sagittal ramus split osteotomy occur in 3-6.6% of cases.
  • Thin mandibular rami and a high-situated lingula are identified anatomical risk factors.
  • These anatomical variations can lead to osteotomy in thin bone regions with limited cancellous bone.

Purpose of the Study:

  • To present a modified sagittal split osteotomy technique.
  • To address and mitigate the risk of unfavorable fractures in patients with specific anatomical predispositions.

Main Methods:

  • Description of a modified sagittal split osteotomy technique.
  • Focus on adapting the osteotomy to anatomical variations like thin rami or high lingula.

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Main Results:

  • The presented technique aims to prevent unfavorable fractures.
  • It provides a method to manage cases with challenging anatomy.

Conclusions:

  • A modified surgical approach can effectively prevent unfavorable fractures during sagittal ramus split osteotomy.
  • Surgeons can utilize this technique when encountering thin mandibular rami or high lingula anatomy.