METHOD FOR CORRECTION OF CONGENITAL AND ACQUIRED GNATHIC ANOMALIES Russian patent published in 2015 - IPC A61B17/24 

FIELD: medicine.

SUBSTANCE: mucous membrane is incised within mandibular angles from the vestibular side up to first molars. A bilateral sagittal splitting of the mandible is performed. A maxillary mucous membrane is incised along a transient fold from 1.6 to 2.6 teeth. Check points are marked. A screw is twisted in within nasal points; a second screw is twisted in the most inverted point of the mandibular alveolar tissue between the root apexes 3.1 and 4.1. A vertical bone notch is created in a projection of a mesiobuccal tuber of the first maxillary molar. A piriform opening base is dilated with a burr by 1.5-2 mm, and a maxillary nasal spine is resected. That is followed by LeFort I supraapical osteotomy and segmentation. The maxillary bone is divided into four fragments: middle, two lateral and anterior. That is followed by an intermandibular ligation of free maxillary and mandibular fragments in an orthognatic position. A double-jaw complex is displaced in three planes. A reference point for the complex displacement in the frontal plane is a distance between the nasal point and the inverted point of the mandibular alveolar tissue. A reference point for the double-jaw complex displacement in the sagittal plane is a distance between the notches on the maxillary fragments displaced in relation to each other. A reference point for the double-jaw complex positioning in the horizontal plane is a face midline. An osteosynthesis is performed first within the maxillar. A condyloid process is positioned, and a mandibular osteosynthesis is performed.

EFFECT: method enables increasing the pre-set maxillary and mandibular positioning accuracy in performing orthognatic surgeries, reducing the length of operation, as well as the number of operative and intraoperative complications.

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