METHOD OF SURGICAL TREATMENT OF ODONTOGENIC MAXILLARY SINUSITIS BY ENDOSCOPIC INFRATURBINAL APPROACH WITH PLASTIC CLOSURE OF ANTROSTOMA Russian patent published in 2018 - IPC A61B17/00 

FIELD: medicine.

SUBSTANCE: transnasally under the endoscope control after medialization of the inferior nasal concha, a L-shaped incision is made with a scalpel, the vertical line of the incision is performed by 5 mm forward from the anterior end of the inferior nasal concha to the bottom of the nasal cavity, the horizontal line extends along the bottom of the nasal cavity from the level of the anterior end of the central nasal concha in the rostral direction until it joins the vertical line of the incision. In the lower nasal passage, the mucoperiost is separated by blunt dissection with the formation of the infraturbinal flap. The front and lower borders of the flap - the incision made earlier, the upper one - the attachment place of the bony frame of the inferior nasal concha to the lateral wall of the nasal cavity, the rear one - the projection of the anterior wall of the nasolacrimal canal. The L-type shape of the incision made at the first stage of the operation allows to mobilize the flap from the lateral wall of the nasal cavity, preserving its integrity. Leaving the edge of the pear-shaped aperture by 1.5 cm in the caudal direction, conducting subperiostal dissection of the nasal cavity lateral wall in the lower nasal passage with boron, an oval antrostoma is applied sufficient to remove dental material, fungal bodies, cysts, polyps without damaging the nasolacrimal canal. The edges of the antrostoma are smoothed with a diamond cutter, preventing the entry of bone fragments into the sinus cavity. If necessary, the antrostoma can be expanded within the infraturbinal flap. If the bone of the lateral wall of the nasal cavity is thin (it is determined by preliminary probing), the antrostoma can be applied by the Cottle raspatory.

EFFECT: method allows to create a surgical corridor providing the possibility of free surgical manipulation.

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