Piezosurgery in the excision of middle ear tumors: effects on mineralized and non mineralized tissues

BACKGROUND: Piezosurgery is a new instrument able to cut bone without necrosis and non-mineralized tissue damage. The aim of this study was to test the Piezosurgery as a new and alternative method for the excision of middle-ear tumors and to analyze its effects on soft tissues. MATERIAL/METHODS: The Piezosurgery device was used to excise eight glomus tympanicum tumors and two primary B-cell lymphomas of the middle ear. 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 two hand-pieces, two inserts, and two peristaltic pumps.…