Abstract
The authors studied the causes of development of recurrent chronic purulent frontal sinusitis after Belogolovov frontal sinus opening in 26 patients at the period of 2010–2016. The article discusses the specific features of formation of frontal ostium using demineralized bone grafts and polytetrafluoroethylene, describing the disadvantages of each of the materials. It was decided to return to the previously suggested original method of formation of frontal ostium using a combined drain tube consisting of a rigid tubular fragment and a homotissue component (femoral artery), which is the natural fluid conductor in the human body.
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