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An Innovative method for intraoperative guidance of nasal shape in rhinoplasty: Application of a convenient, sterilizable, patient-specific film model

Published:September 09, 2022DOI:https://doi.org/10.1016/j.bjps.2022.06.027

      Summary

      Backgrounds

      3D simulation is increasingly used in rhinoplasty. However, during the operation, there is no tool to directly link the 3D simulation results with the intraoperative operation. Doctors rely on 3D simulation results only according to their intuition. Recently, the authors have discovered a simple, low-cost, and practical method for intraoperative assessment: a film model can be made according to the contour of the nose shape in its midsagittal view. The authors aimed to evaluate the effectiveness of the innovative method for intraoperative assessment of nasal shape in rhinoplasty.

      Methods

      Thirty-nine patients who underwent rhinoplasty for the first time between January 2019 and January 2021 were included in this study. All the patients confirmed ideal nasal shape based on preoperative three-dimensional photography (INOVA 3D-EX). In the guide group, procedures were based on guide of the film model and a picture of 3D simulation, and in the control group, procedures were performed based on the surgeon's intuition and a picture of 3D simulation.

      Results

      There were no statistical differences in basic data between the two groups before operation. Both groups showed a satisfactory correlation. Except for the columellar lobular angle, the ICC of nasal length, nasal depth, dorsum height, columella length, nasofrontal angle, nasorostral angle, and nasolabial angle were all stronger in the guide group than in the control group.

      Conclusion

      This study demonstrates the usefulness of the nasal-shaped film model, which is made according to the contour of the nose shape in its midsagittal view. This approach is simple, low-cost, and practical.

      Keywords

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