title: Predictive Soft Tissue Airway Volume Analysis in Mandibular Distraction: Pushing The Envelope in Surgical Planning for Obstructive Sleep Apnea.
abstract: Three-dimensional computed tomography has been used in both preoperative planning of mandibular distraction osteogenesis and in the evaluation of postoperative resolution of tongue-based airway obstruction. The authors present a case report using software to predict postdistraction airway volume during virtual surgical planning (VSP) of mandibular distraction osteogenesis in a 7 year old. The predicted increase in airway volume derived from VSP was 33.57% (1716 mm(3) preoperatively to 2292 mm(3) postvirtual distraction). Based on the three-dimensional computed tomography, the actual airway volume increased to 2211 mm(3) postoperatively, a 28.85% increase.The implications of this advancing technology are far-reaching. An illustrative case is presented herein to demonstrate the efficacy of the airway prediction and its limitations. The authors believe that, with continued investigation, this novel approach may be a standard feature of all VSP sessions for the treatment of tongue-based airway obstruction.
authors.affiliation: *Pritzker School of Medicine, University of Chicago, Chicago, IL †Stryker Medical Inc, Kalamazoo, MI ‡Department of Pediatrics, University of Chicago §Department of Surgery, Section of Otolaryngology ||Department of Surgery, Section of Plastic and Reconstructive Surgery, University of Chicago, Chicago, IL.
authors.forename: Julie M
authors.initials: JM
authors.lastname: Mhlaba
authors.forename: Ming L
authors.initials: ML
authors.lastname: Chen
authors.forename: Hari P
authors.initials: HP
authors.lastname: Bandla
authors.forename: Fuad M
authors.initials: FM
authors.lastname: Baroody
authors.forename: Russell R
authors.initials: RR
authors.lastname: Reid
mesh_terms: D000402:Airway Obstruction / Q000601:surgery; D059925:Anatomic Landmarks / Q000473:pathology; D002648:Child; D003198:Computer Simulation; D005544:Forecasting; D006801:Humans; D021621:Imaging, Three-Dimensional / Q000379:methods; D016268:Internal Fixators; D008297:Male; D008334:Mandible / Q000473:pathology / Q000601:surgery*; D019186:Mandibular Advancement / Q000295:instrumentation / Q000379:methods; D008953:Models, Anatomic; D009960:Oropharynx / Q000473:pathology; D019857:Osteogenesis, Distraction / Q000295:instrumentation / Q000379:methods*; D010347:Patient Care Planning; D020181:Sleep Apnea, Obstructive / Q000601:surgery*; D025321:Surgery, Computer-Assisted / Q000379:methods*; D014057:Tomography, X-Ray Computed / Q000379:methods; D014059:Tongue / Q000473:pathology / Q000601:surgery; D014584:User-Computer Interface