Cephalometric soft tissue analysis of combined elliptical-window genioglossus advancement and hyoid suspension for obstructive sleep apnea.

摘要

This study sought to determine the changes in cephalometric facial profile soft tissue measurements after simultaneous elliptical-window genioglossus advancement and hyoid suspension procedures for obstructive sleep apnea.A retrospective analysis of preoperative and postoperative lateral cephalometric soft tissue changes in 23 consecutive patients who had undergone combined elliptical-window genioglossus advancement and hyoid bone suspension for polysomnogram-confirmed obstructive sleep apnea. Six cephalometric soft tissue measurements of the lower face were evaluated: pogonion (Pg'-Pg), menton (Me'-Me), gnathion (G'-G), lower lip (LI-L1i), B point (B-B'), and horizontal distance from subnasale perpendicular to the soft tissue chin at the level of pogonion (SN-Pg'). Statistical analysis was conducted with the paired Student t test (with 95% confidence interval of difference between means) and found significant for P < .05. Post hoc power analysis was conducted.There were no statistically significant differences among all 6 preoperative and postoperative cephalometric, radiographic soft tissue measurements of the lower facial profile.The combined elliptical-window genioglossus advancement and hyoid suspension procedures for obstructive sleep apnea do not significantly change the cephalometric lower facial profile. In patients with an adequate lower facial profile with base-of-tongue obstruction who require surgical management of obstructive sleep apnea without alteration of their lower facial profile, this procedure does not significantly alter the preoperative facial profile.