The septal deviation of the lower part of the cartilaginous nasal septum is generally the septal deviation that blocks the nasal airways.
Such DNS (Deviated Nasal Septum) is readily corrected, with improved airway, when the septum is repaired through the Septoplasty.
In some cases the higher part of nasal septum is also deviated, making the uppermost part of the triangular airway very narrow and disrupting the natural laminar flow of air through the nasal cavity.
This compromised area is also the culprit in some cases of failed Septoplasty where the Nasal Valve Compromise has either not been recognized or not been addressed adequately.
In Cosmetic and Functional Rhinoplasty “Spreader grafts” are sometimes employed to keep the ULC-NB(Upper Nasal Cartilage-Nasal Bone complex) adequately separated from the antero-superior (Dorsal) part of nasal septum – along the slope of the nose.