Long-Term Clinical Effectiveness of Maxillomandibular Advancement for the Treatment of Obstructive Sleep Apnea: A Multicenter Study

not reach statistical significance (P 0.0625). NOSE scores worsened in 10 patients. Among these, half had minimal change while 5 had significant worsening. No predictor variables were identified in this small subgroup but individual case analyses revealed postoperative nasal septal deviation occurred in 3 subjects. Conclusions: Our overall findings suggest that nasal airway function improved following maxillary advancement and subjects with higher preoperative NOSE scores ( 25) were more likely to experience relief of nasal obstructive symptoms. Additionally, care should be taken to ensure passive septal positioning to avoid postoperative septal deviation.