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Page 2 of 9           Morisada et al. Plast Aesthet Res 2024;11:35  https://dx.doi.org/10.20517/2347-9264.2023.119

               ANALYSIS OF THE TWISTED NOSE
               The first step in addressing the crooked or twisted nose starts with a thorough physical examination to
               understand the factors contributing to the patient’s deformity and allow for the creation of an accurate
               surgical plan. Baseline facial analysis and asymmetry (e.g., hemifacial microsomia) should be assessed and
               pointed out to the patient, as this may contribute to the perception of a crooked nose. Symmetry in both the
               vertical and horizontal dimensions should be scrutinized closely. For vertical symmetry, using the midline
               teeth, lip, or glabella can help to determine any discrepancy and degree of deviation. The patient’s skin type
               and thickness should be noted, since thicker skin tends to better camouflage cartilage irregularities. Noting
               areas of scarring, contracture, and contour irregularities can give insight into what may have been
               previously resected or missing from the native structure. Observing both normal and then more forceful
               inspiration may reveal the presence of dynamic nasal valve collapse . The external nasal appearance should
                                                                        [1]
               be analyzed and broken down by upper, middle, and lower thirds [Table 1]. Both the side of deviation and
               the shape of the deformity can help one to predict the underlying cartilage contour. The base view is then
               analyzed with attention to nostril asymmetry and the presence of caudal septal deviation. Nostril asymmetry
               is often a difficult problem to correct and can be the result of soft tissue, lower lateral cartilage crural size or
               shape, or caudal septal deviation. Manual palpation of the caudal septum aids in identifying the shape and
               strength of the caudal septal strut. Intranasal examination is useful for analyzing the nasal airway including
               any septal deviation or nasal valve narrowing that contributes to nasal obstruction. The modified Cottle
               maneuver is performed by placing an instrument gently under the upper lateral cartilage caudal edge and
               lifting superiorly and laterally. It should be noted that only gentle support of the nasal sidewall rather than
               dramatic and overaggressive lateralization should be performed for the most accurate assessment and to
               provide realistic expectations for improvement with surgical intervention. Patients who subjectively report
               improved airflow during the modified Cottle maneuver may benefit from grafting to open and/or stiffen the
               nasal valve. Finally, preoperative photographs should be obtained of the frontal, oblique, lateral, and base
               views . These photos may reveal subtle deformities overlooked during the initial physical examination, can
                    [1]
               be reviewed pre- and postoperatively by the surgeon and/or patient, and are used for medicolegal
               documentation. The use of anatomic landmarks to ensure photos are taken straight and without slight
               tilting or turning of the head can aid in determining the degree of asymmetry or deviation. Many patients
               learn to turn their heads to make photos more favorable, but this can preclude accurate assessment and
               counseling. Candid discussion and appropriate expectations should be established with the patient
               preoperatively.


               TECHNIQUES TO ADDRESS NASAL DEVIATION BY SUBSITE
               Correction of upper third
               Correction of the upper “bony” third has been classically based on osteotomies for control and
               manipulation of the bony pyramid to create smooth brow-tip aesthetic lines . Thorough evaluation with
                                                                                 [2]
               both visual inspection and palpation of nasal bone contour differences, irregularities, asymmetry, and prior
               fracture lines can help with planning the osteotomies. When there is a significant discrepancy in the length
               of the nasal sidewall, multiple lateral osteotomies or an intermediate osteotomy is useful on the longer nasal
               bone or to correct a convex shape . In our practice, we utilize the “high-low-high” lateral osteotomy
                                             [3,4]
               technique with subsequent digital manipulation and molding . The initial “high” cut is started high on the
                                                                   [5]
               pyriform aperture to preserve Webster’s triangle and avoid nasal airway collapse. The angle of the hand is
               then dropped for the “low” portion which is well within the maxillary groove to avoid palpable osteotomy
               step-offs. Finally, the last “high” angle is curved superiorly again toward the nasofrontal suture line. Medial
               osteotomies can be performed in order to control the back fracture and are sometimes completed prior to
               open septoplasty to avoid destabilizing the dorsal septal keystone region. Occasionally, a percutaneous
               transverse osteotomy aimed caudally from the nasal root, in addition to bilateral lateral osteotomies, can
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