Towards modeling of phonation and its recovery in unilateral vocal fold paralysis by fluid-structure interaction

Introduction: Vocal folds are responsible for sound generation. In unilateral vocal fold paralysis (UVFP), the recurrent laryngeal nerve, which controls folds, is paralyzed. Medialization laryngoplasty a surgery in an implant inserted to push paralyzed centerline recover phonation. Methods: Here, numerical simulation used calculate flow-related parameters give insight into what happens healthy and treated(implanted) their enhancement. present work, airflow over modeled considering fluid-structure interaction (FSI) varying inlet pressure. The governing equations discretized fluid solid domains solved using Galerkin finite element method. boundary conditions unilaterally were imposed agree with real cases behavior. Results: results showed effectiveness of medialization treating concerning folds. Conclusion: This provided better treatment patient-specific cases.