Low-Strip Dorsal Preservation Rhinoplasty Opens the Internal Nasal Valve in Tension Nose Deformity.

Background: Dorsal preservation is a recently popularized technique to lower the nasal dorsum without opening the cartilaginous vault. Improved nasal breathing has been reported after lowering an intact dorsum using preservation techniques, suggesting that septal deprojection opens the internal nasal valves. The goal of this study was to evaluate the effect of dorsal preservation on internal nasal valve dimensions in noses with an overprojected cartilaginous septum.