With the development of endoscopic surgery, new hazards of high-frequency (
HF) electrosurgery have been recognized. The potential risks of monopolar e
lectrosurgery, the Limitations of bipolar technique, and the need to reduce
instrument interchange have favored the use of ultrasonic technology, whic
h becomes more and more popular. This work aims at presenting the main feat
ures of the currently available ultrasonically activated scalpels, as well
as their advantages, limitations, and indications.