title: Modified maxillomandibular advancement for the treatment of obstructive sleep apnea: a preliminary report.
abstract: OBJECTIVE
  A prospective study to evaluate the modified maxillomandibular advancement (MMA) technique for the treatment of obstructive sleep apnea (OSA).
  
  
  METHODS
  Eleven patients underwent modified MMA for the treatment of OSA. All the patients underwent presurgical and postsurgical polysomnography, nasolaryngoscopy, and clinical facial photographic assessment. The results were analyzed after a minimum of 6 months postsurgery (mean, 7.7 months).
  
  
  RESULTS
  The preoperative polysomnography results were as follows: apnea index, 55.7 +/- 19.8; apnea-hypopnea index, 70.7 +/- 15.9; lowest oxygen saturation, 58.6 +/- 12.3%; longest apnea/hypopnea, 67.9 +/- 23.7 seconds; and arousal index, 47.1 +/- 18.2. The postoperative polysomnography results were as follows: apnea index, 3.4 +/- 3.4; apnea/hypopnea index, 11.4 +/- 7.4; lowest oxygen saturation, 83.9 +/- 8.8%; longest apnea/hypopnea, 38.2 +/- 24.6 seconds; and arousal index, 15.1 +/- 7.3. The mean postoperative body mass index (BMI) was 27.2 +/- 3.3. The mean BMI change after surgery was 6.5%.
  
  
  CONCLUSIONS
  The preliminary review has demonstrated that the modified MMA technique for the treatment of OSA is highly effective in the treatment of severe OSA without the significant facial profile change commonly associated with the traditional MMA technique.
authors.affiliation: Department of Otolaryngology, Singapore General Hospital. gohyauhong@hotmail.com
authors.forename: Yau Hong
authors.initials: YH
authors.lastname: Goh
authors.forename: Kheng Ann
authors.initials: KA
authors.lastname: Lim
mesh_terms: D000328:Adult; D015992:Body Mass Index; D002508:Cephalometry; D004954:Esthetics; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D019186:Mandibular Advancement / Q000379:methods*; D008437:Maxilla / Q000601:surgery*; D008875:Middle Aged; D010027:Osteotomy / Q000379:methods*; D017286:Polysomnography; D011183:Postoperative Complications / Q000175:diagnosis / Q000209:etiology; D020181:Sleep Apnea, Obstructive / Q000175:diagnosis / Q000209:etiology / Q000601:surgery*; D016896:Treatment Outcome