Abstract
Injection larygoplasty medializes deinnervated vocal folds (VFs) by introducing bulking material into the thyroarytenoid muscle. Transcutaneous larygoplasty is preferable to a transoral approach in certain compromised patients, but accessing the VFs with this approach is a challenge for the inexperienced clinician. A geometric approach to consistently and accurately guide the needle to various locations along the VF was developed using cross sectional anatomy software. Pigment was injected into the VF guided by this approach without visualization in 4 female and 3 male cadavers. The vocal folds were then dissected and results recorded. Injections were effective in 11 of 12 tries when VF lengths were within the standard deviation of the mean and in abduction.Grant Funding Sourcen/a
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