[The longterm results of osteoplastic frontal sinus surgery for recurrent disease (author's transl)].

The osteoplastic frontal sinus operation permits the complete removal of sinus mucosa and, with blockage of the frontonasal duct, the reliable obliteration of the sinus cavity. Two patients, who had had several surgical procedures for recurrent frontal sinusitis, became symptom free after this procedure. After an interval of 5 to 6 years the cosmetic result remained satisfactory and ossified obliteration of the sinus was demonstrable radiologically.