[Experimental morphological substantiation of the surgical treatment of paranasal sinuses]

This experimental morphological study conducted on the rabbit model has demonstrated that the use of a modified trocar with "buried facets" for maxillary microsinusotomy allowed surgical trauma to be substantially reduced compared with the traditional approach. With the new instrument, the volume of hemorrhage was lower and the inflammatory reaction weaker while large necrotic zones with leukocytic infiltration were virtually absent. As a result, reparative processes developed faster and healing took less time. No complications could be documents (e.g. nonclosure of the defect, formation of cartilaginous tissue instead of bone, and/or transition of acute inflammation into a chronic process).