This procedure improves vocal quality by adjusting the position or tension of the vocal folds. It is typically used to treat vocal fold paralysis, weakness, or asymmetry that causes a breathy or weak voice. During microlaryngoscopy, laryngoplasty techniques are performed internally — often by injecting material or reshaping vocal structures to improve closure and voice production.

Performed under general anesthesia, the vocal folds are accessed through the mouth using a surgical microscope. The surgeon may inject fat, filler or use sutures or implants to reposition the folds. The results can lead to better vocal strength, clarity, and endurance. Most patients recover quickly, with some voice rest required. The voice often improves within days, but optimal results are usually seen over several weeks. Risks are minimal, and follow-up includes voice therapy to help the patient adapt to the new vocal mechanics.