[Ultrasonic ethmoidotomy combined with intracavitary magnetotherapy in chronic polypous ethmoiditis].

The efficacy of ultrasonic ethmoidectomy combined with magnetic therapy was investigated in 90 patients. Ultrasonic ethmoidectomy was applied with the help of a LORA system consisting of a generator and an acoustic unit connected to a waveguide with a spoon-shaped end (44 Hz frequency and 35-40 microns amplitude). Under visual control the ultrasonic spoon was inserted into the meatus nasi medius, and the injured medial, superior and some anterior cells of the ethmoidal bone were opened. Bone trabecules of the cells were removed together with the polypous mucous membrane and polyps, by moving the concave surface forwards and keeping the long axis of the bent portion of the spoon in the vertical position. Follow-up of the treated patients during 6 months to 4 years revealed the absence of polyps in 79.7%. Repeated application of this treatment in the case of severe recurrent forms of polypous ethmoiditis improved the therapeutic efficacy.