Abstract
Background
Repositioning the medial crura cephalically onto the caudal septum (tongue-in-groove; TIG) allows alteration of the columella, ala, and nasal tip to address alar-columellar disproportion as seen from the lateral view. To date, quantitative analysis of nostril dimension, alar-columellar relationship, and nasal tip changes following the TIG rhinoplasty technique have not been described. The present study aims to evaluate post-operative lateral morphometric changes following TIG.
Materials/Methods
Pre- and post-operative lateral views of a series of consecutive patients who underwent TIG rhinoplasty were produced from 3D images at multiple time points (≤2 weeks, 4–10 weeks, and >10 weeks post-operatively) for analysis. The 3D images were converted to 2D and set to scale. Exposed lateral nostril area, alar-columellar disproportion (divided into superior and inferior heights), nasolabial angle, nostril height, and nostril length were calculated and statistically analyzed using a pairwise t test. A P ≤ 0.05 was considered statistically significant.
Results
Ninety-four lateral views were analyzed from 20 patients (16 females; median age: 31.8). One patient had a history of current tobacco cigarette use. Lateral nostril area decreased at all time points post-operatively, in a statistically significant fashion. Alar-columellar disproportion was reduced following TIG at all time points. The nasolabial angle significantly increased post-operatively at ≤2 weeks, 4–10 weeks, and >10, all in a statistically significant fashion. Nostril height and nostril length decreased at all post-operative time points.
Conclusion
Morphometric analysis reveals reduction in alar-columellar disproportion and lateral nostril shows following TIG rhinoplasty. Tip rotation, as a function of nasolabial angle, also increased. These results provide quantitative substantiation for qualitative descriptions attributed to the TIG technique. Future studies will focus on area and volumetric measurements, and assessment of long-term stability.
Level of Evidence V
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All authors have no commercial associations or disclosures that may pose or create a conflict of interest with the information presented within this manuscript.
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Shah, A., Pfaff, M., Kinsman, G. et al. Alar-Columellar and Lateral Nostril Changes Following Tongue-in-Groove Rhinoplasty. Aesth Plast Surg 39, 191–198 (2015). https://doi.org/10.1007/s00266-015-0450-7
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DOI: https://doi.org/10.1007/s00266-015-0450-7