Treatment effectiveness for aging changes in the larynx.

Objectives: To compare the effectiveness of injection augmentation and bilateral thyroplasty surgery in managing age-related changes of the larynx.

Study Design: Retrospective chart review of patients treated with bilateral thyroplasty and/or injection augmentation.

Methods: We evaluated 22 patients before and after treatment using: 1) normalized glottal gap area and normalized true vocal fold width from endoscopic images; 2) patient self-rating questionnaires; and 3) acoustic and aerodynamic measures.