Laryngeal framework surgery has become an increasingly popular alternative to Teflon injection for vocal rehabilitation. Vocal cord medialization requires custom tailoring of the implant's size and shape to optimize individual vocal quality, whether it be via the interposition of Silastic implants between the thyroid ala and the inner thyroid perichondrium or through a cartilage window. A new technique is described for vocal cord medialization using an implanted miniature tissue expander. Intraoperative and postoperative vocal cord medialization was achieved in a canine model by controlled percutaneous filling of a remote injection valve. The implants were well tolerated and allowed continued control of vocal cord position for several weeks. Using this technique, vocal quality can be fine-tuned with a degree of precision not previously possible. The advantages, limitations, and technical aspects of expansion laryngoplasty are discussed.
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