Report on results of frontal sinus obliterations in Turku University Central Hospital 1977-1994.

When a sinusitis develops into a chronic stage, for which endoscopic sinus surgery is not radical or successful enough, we currently perform in our hospital obliteration of the infected frontal sinuses. The present study is a partly retrospective and partly prospective evaluation of the outcome of patients operated on by osteoplastic approach. Obliteration materials used during years 1977-1994 have been ossar, collagen matrix and since 1990 bioactive glass. Although major differences between the obliteration materials could not be demonstrated the obliteration with bioactive glass has proven to be a safe and effective method for patients who did not show any improvement after endoscopic sinus surgery.