Treatment of the Middle Third and Septal Deformity: A Trizonal Approach.

Genetic, developmental, traumatic factors can produce a wide variety of nasal septal deformities in caudal-cephalic/dorsal-maxillary planes alone or in combination. These can be corrected by an endonasal approach through a transfixion incision by resecting, transposing, or utilizing principles of cartilage biomechanics. The authors are proposing a "Rosetta Stone" based on a trizonal analysis of the deviated nose that considers the contribution of each region to the deformity. Clinical assessment of the deviated nose should be segmental as well as global. Surgical correlation of the nasal bones, perpendicular, and quadrilateral plates, lateral cartilages, and turbinates may be necessary to achieve a satisfactory cosmetic and functional results.