Observe the dissection of the tunnels of augmentation rhinoplasty under endoscope

Objective To observe and analyse the dissection of the tunnels in traditional blind operation of augmentation rhinoplasity. Methods 11 Cases of augmentation rhinoplasity were collected and be observed by an endoscope as soon as the tunnels were fomed during the operations. Results ①Some of the tunnels did not go through one layer. ②The bilateral cartilage separated in the mid-line. ③There were two blood vessels in the surface of alar cartilage.There were perforating blood vessels in the edge of pyriform aperture. ④In some cases whose incision were in unilateral alar margin, the tunnel were asymmetric. Conclusion In some cases of traditional blind operation of augmentation rhinoplasty, tunnels were not suitable, they were asymmetric; and there were desmo and septa in the tunnels. Those might be the causes of complications post-op of augmentation rhinoplasty.