RESUMEN
OBJECTIVE: The aim of the study was to estimate usability of the piezoelectric knife in larynx surgery. Prove that the piezoelectric staff can be used to do any different shape incision within the larynx cartilages. MATERIAL AND METHODS: 35 patients hospitalized in our Department in 2014-2016 were enrolled in our study. 24 patients went vertical partial laryngectomy and 1 patient went horizontal partial laryngectomy because of larynx cancer. 5 patients went partial laryngectomy because of low stage of piriformis recess cancer. Piezoelectric staff was used to do thyroidectomy and resection of thyroid cartilage suspected of carcinomatosis infiltration. The rest 4 patients had done widening of larynx lumen due to larynx stenosis or slenderness. The piezoelectric tool was used to do different incision or resection within the larynx cartilages in case of widening lumen of the larynx. RESULTS: The larynx cartilages, especially thyroid cartilage could be cut in different shapes using piezoelectric tools. The usage of this equipment causes the minimal loss and small destruction of local healthy tissues. CONCLUSIONS: The Piezoelectric instrument is useful instrument suit to operate within larynx cartilages. Exchangeable tip available in different shapes enables different resections of cartilages. Using the piezoelectric staff we can remove pathological tissue with minimal local destruction. Our observation shows that larynx operation with a usage of the piezoelectric knife is safe and effective. Current English literature does not describe usage piezoelectric tools in larynx surgery. It is essential to do more observation about that type of operations.