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Related Experiment Videos

Mandibular distraction osteogenesis: effects on articulation and velopharyngeal function

T W Guyette1, J W Polley, A A Figueroa

  • 1Craniofacial Center, University of Illinois at Chicago 60612-7316, USA.

The Journal of Craniofacial Surgery
|May 1, 1996
PubMed
Summary

Mandibular distraction osteogenesis can affect speech and velopharyngeal function. While temporary velopharyngeal inadequacy and articulation decline were observed post-procedure, function largely recovered in these distraction osteogenesis cases.

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Area of Science:

  • Craniofacial Surgery
  • Speech Pathology
  • Pediatric Plastic Surgery

Background:

  • Mandibular distraction osteogenesis is a popular technique for treating mandibular hypoplasia and asymmetry.
  • The procedure offers significant skeletal and soft tissue changes but long-term sequelae are not well-documented.

Purpose of the Study:

  • To describe changes in articulation and velopharyngeal function following unilateral mandibular distraction.
  • To investigate the transient nature of velopharyngeal inadequacy after the procedure.

Main Methods:

  • Case report of two patients undergoing unilateral mandibular distraction (35 mm and 45 mm lengthening).
  • Assessment of articulation skills and velopharyngeal function before and after the procedure.

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Main Results:

  • Both patients experienced a decline in articulation and immediate velopharyngeal inadequacy post-distraction.
  • Velopharyngeal inadequacy was transient, with recovery within 1 to 8 months.

Conclusions:

  • Unilateral mandibular distraction can temporarily impact articulation and velopharyngeal function.
  • Velopharyngeal function generally recovers over time following mandibular lengthening procedures.