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Original sagittal split osteotomy revisited for mandibular distraction.

J Y Choi1, K G Hwang, S H Baek

  • 1Department of Oral and Maxillofacial Surgery, College of Dentistry, Seoul National University, Korea.

Journal of Cranio-Maxillo-Facial Surgery : Official Publication of the European Association for Cranio-Maxillo-Facial Surgery
|July 24, 2001
PubMed
Summary

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The sagittal split ramus osteotomy is a safe and effective technique for mandibular distraction osteogenesis, avoiding complications associated with conventional methods. This modified approach ensures satisfactory and stable results in patients with mandibular deformities.

Area of Science:

  • Oral and Maxillofacial Surgery
  • Orthognathic Surgery
  • Craniofacial Surgery

Background:

  • Conventional osteotomy for mandibular distraction presents challenges due to anatomical variations and risks complications like nerve damage and nonunion.
  • The sagittal split ramus osteotomy offers an alternative approach to address these limitations in mandibular distraction procedures.

Purpose of the Study:

  • To evaluate the efficacy and safety of the sagittal split ramus osteotomy in mandibular distraction osteogenesis.
  • To compare the outcomes of this technique with conventional methods, focusing on complication avoidance.

Main Methods:

  • A retrospective study involving five patients with hemifacial microsomia or mandibular retrusion undergoing mandibular distraction.
  • Application of extraoral distraction devices in four patients and an intraoral device in one patient.

Related Experiment Videos

  • Utilizing the sagittal split ramus osteotomy as the primary surgical technique.

    • Main Results:

    • Satisfactory distraction outcomes were achieved in all five cases.
    • Complications associated with conventional osteotomy, including inferior alveolar nerve injury and tooth germ damage, were successfully avoided.
    • The positive results were maintained postoperatively with a mean follow-up of 36 months.

    Conclusions:

    • Sagittal split ramus osteotomy is a preferred modification for mandibular distraction osteogenesis, minimizing risks to the inferior alveolar nerve and tooth germ.
    • This technique allows for versatile osteotomy line adjustments, enhancing bony contact surface area for improved outcomes.
    • The study suggests widespread adoption of sagittal split ramus osteotomy for enhanced safety and efficacy in mandibular distraction procedures.