EVALUATION OF AUTOLOGOUS AURICULAR CARTILAGE IN VOCAL FOLD MEDIALIZATION AN EXPERIMENTAL STUDY
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Autologous auricular cartilage as a mediatizing material of vocal fold was evaluated in dogs . The auricular cartilage grafts with intact perichondrium were harvested from the auricle and were inserted lateral to the inner thyroid perichondrium at the level of the vocal fold via a window in the thyroid cartilage . After 6 months, the changes of graft weight, size and volume were assessed and histological examination of graft was per formed. The average decline of graft weight was 8.7 % , that of graft size was 7.6 % and that of graft volume was 8.8%. There was no evidence of graft migration from its pocket or penetration into the laryngeal lumen. Histological examination of graft revealed viable, mature cartilage sowrounded by perichondrium.