Autologous Materials for Vocal Fold Augmentation

Various materials can be used for injection laryngoplasty. Autologous materials are immunologically safe compared to other non-autologous materials, so they do not cause foreign body reactions or chronic inflammation. However, there is a disadvantage that it requires general anesthesia compared to commercialized products. The autologous materials currently used in clinical practice are fat and cartilage. Fat has an advantage because it has excellent viscoelasticity, but it has a disadvantage of having resorption. There is a disadvantage in that it is difficult to predict the clinical outcome after fat injection due to various resorption rates. Cartilage is not a popular method, but it has the advantage of lasting long-term effects with a single injection.