Injection laryngoplasty is one of the methods used for alleviating the symptoms of patients with vocal fold paralysis. The paralyzed or immobile vocal fold is approximated to the healthy or mobile fold by this method. As a result, the gap between the vocal folds is closed. This supplies an increase in vocal quality. It also enables better airway protection. As the vocal folds are able to be closed, consumed food and liquids do not penetrate the airway, hence, the trachea and the lungs are protected.
You may watch the examination videos of two different patients with vocal fold paralysis below: