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Estimation of Nasal Tip Support Using Computer-Aided Design and 3-Dimensional Printed Models.
Eric Gray1, Marlon Maducdoc2, Cyrus Manuel3
1Medical student, University of California, Irvine, School of Medicine2Beckman Laser Institute and Medical Clinic, University of California, Irvine, School of Medicine.
JAMA Facial Plastic Surgery
|April 29, 2016
Summary
This study quantifies nasal tip support by measuring reaction forces and mechanical properties. Findings establish thresholds for ideal nasal tip support, aiding in surgical planning for rhinoplasty.
Area of Science:
- Biomechanical analysis of nasal tip support.
- Application of 3-D printing in surgical modeling.
Background:
- Nasal tip support is crucial in rhinoplasty, but objective measurement is challenging.
- Current methods lack defined mechanical properties for ideal tip support.
Purpose of the Study:
- To determine the integrated reaction force and mechanical properties for nasal tip support.
- To establish minimum and ideal thresholds for nasal tip support.
Main Methods:
- Created 3-D printed silicone nasal models with varying Young moduli.
- Thirty rhinoplasty surgeons evaluated models for tip support and recoil.
- Collected data on perceived minimum and ideal support levels.
Main Results:
- Identified minimum Young moduli thresholds of 0.096 MPa (adequate) and 0.154 MPa (ideal).
- Determined reaction force thresholds for tip recoil: 0.26-4.74 N (minimum) and 0.37-7.19 N (ideal).
Conclusions:
- Developed a method to estimate clinically relevant nasal tip reaction forces.
- Findings provide objective data for nasal tip support assessment.
- This research will inform computational modeling and enhance rhinoplasty surgical planning.
