LINEAR IMPULSE OSTEOTOME FOR RHINOPLASTY

The 2500 Impactor linear impulse osteotome (MicroAire(R) Surgical Inst ruments, Charlottesville, VA) is a new power instrument for the rhinop lasty surgeon. Air pressure drives the osteotome in linear oscillating pulses, which allows for easy bone cuts. Dorsal hump reduction and a variety of osteotomies were performed on seven cadavers; results were compared with those from traditional osteotome and mallet. Results sho w equal accuracy and precision, with the degree of soft tissue injury and bone comminution being minimal by each technique. Dorsal hump redu ction with the Impactor was performed in a single maneuver starting at the anterior septal angle, cutting easily through the rigid cartilagi nous dorsum. The Impactor was used to perform osteotomies on two patie nts with nasal deformities and satisfactory reductions were achieved. The major distinction with this instrument is the tremendous ease with which bone cuts are mane. Minimal pressure is needed as the Impactor advances through bone. In addition, the Impactor offers single operato r use and a unique method of reducing a prominent nasal dorsum.