Postsurgical Stability of Oropharyngeal Airway Changes Following Counter-Clockwise Maxillo-Mandibular Advancement Surgery

Maxillo-mandibular advancement with counter-clockwise rotation produces immediate increases in middle and lower oropharyngeal airway dimensions, which were constrained by changes in head posture but remain stable over the postsurgical period. The upper oropharyngeal airway space increased only on the longest follow-up.