title: Impact of mandibular distraction osteogenesis on the oropharyngeal airway in adult patients with obstructive sleep apnea secondary to retroglossal airway obstruction.
abstract: OBJECTIVE
  To evaluate the impact of mandibular advancement by distraction osteogenesis on the oropharyngeal airway in adult patients with retroglossal airway obstruction using two different techniques of mandibular distraction.
  
  
  METHODS
  13 adult patients with mandibular hypoplasia secondary to TMJ ankylosis with OSAS and radiographic, CT and polysomnographic evidence of OSAS were included in the study. MDO was performed (corpus distraction in 8 cases and morphometric distraction in 5 patients). Post-operatively the patients were followed up by radiographs, CT and polysomnography after 1 month and 6 months.
  
  
  RESULTS
  There was an increase in the linear dimension of mandible by 11.07 mm, the volume by 19.3% and a decrease in AHI from 44.8 to 13.2.
  
  
  CONCLUSIONS
  Mandibular distraction (corpus and orthomorphic-equivocal results) is an effective method of relieving the retroglossal airway obstruction in adult patients with OSAS.
authors.affiliation: Meenakshi Cleft & Craniofacial Centre, Meenakshi Ammal Dental College, Alapakkam Main Road, Madhuravoyal, Chennai, India.
authors.forename: Ramanathan
authors.initials: R
authors.lastname: Manikandhan
authors.affiliation: Meenakshi Cleft & Craniofacial Centre, Meenakshi Ammal Dental College, Alapakkam Main Road, Madhuravoyal, Chennai, India.
authors.forename: Ganugapanta
authors.initials: G
authors.lastname: Lakshminarayana
authors.affiliation: Meenakshi Cleft & Craniofacial Centre, Meenakshi Ammal Dental College, Alapakkam Main Road, Madhuravoyal, Chennai, India.
authors.forename: Pendem
authors.initials: P
authors.lastname: Sneha
authors.affiliation: Meenakshi Cleft & Craniofacial Centre, Meenakshi Ammal Dental College, Alapakkam Main Road, Madhuravoyal, Chennai, India.
authors.forename: Parameshwaran
authors.initials: P
authors.lastname: Ananthnarayanan
authors.affiliation: Meenakshi Cleft & Craniofacial Centre, Meenakshi Ammal Dental College, Alapakkam Main Road, Madhuravoyal, Chennai, India.
authors.forename: Jayakumar
authors.initials: J
authors.lastname: Naveen
authors.affiliation: Meenakshi Cleft & Craniofacial Centre, Meenakshi Ammal Dental College, Alapakkam Main Road, Madhuravoyal, Chennai, India.
authors.forename: Hermann F
authors.initials: HF
authors.lastname: Sailer
keywords: Mandibular distraction osteogenesis; Obstructive sleep apnea; Oropharyngeal airway; Retroglossal airway