Objective: Piezosurgery is a recently developed system for cutting bone without necrosis and nonmineralized tissues damage. The aim of this work has been to test Piezosurgery as a new bony scalpel in nasal surgery.
Methods: In this nonrandomized study, we have performed Piezosurgery in the excision of malignant nasal tumors through a paralateronasal approach. We have used Piezosurgery on 10 patients affected by nasal adenocarcinoma. The piezoelectric device uses low-frequency ultrasonic waves (24.7-29.5 kHz); the applied power can be modulated between 2.8 and 16 W and is programmed in accordance to the density of the bone. The equipment consists of 2 hand pieces, 2 inserts, and 2 peristaltic pumps; the microvibrations that are created in the piezoelectric hand piece cause the inserts to vibrate linearly between 60 and 210 mum.
Results: In all the patients, Piezosurgery provided excellent control without bleeding and harming effects on the adjacent structures. No patients experienced adverse effects.
Conclusion: Piezosurgery is a new and revolutionary osteotomy technique using the microvibrations of scalpels at ultrasonic frequency, so that soft tissue will not be damaged even upon accidental contact with the cutting tip. The safety of Piezosurgery as regards soft tissues was confirmed. No adverse effects were detected during unintentional contact with the tumor, nerve, vessel, and mucoperiosteum; this renders the piezoelectric device ideal for this application.
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