This procedure improves vocal cord function in patients with vocal cord atrophy, scarring, or paralysis. Fat is harvested from another part of the patient's body—often the abdomen or thigh—and carefully injected into the vocal cord to restore bulk and improve closure during speech. This fat injection helps improve voice strength and reduce breathiness.

The procedure is done under general anesthesia using an operating microscope. A small incision is made to harvest fat, which is then purified and injected precisely into the vocal fold. Recovery typically includes voice rest for several days, and voice therapy is often recommended afterward to help optimize vocal performance. Some of the injected fat may be absorbed over time, so occasional touch-up procedures may be needed. Most patients experience a noticeable improvement in vocal strength and endurance.