| 摘要 |
FIELD: medicine.SUBSTANCE: fragment reduction is followed by percutaneous and extrafocal insertion of two pins 0.8 mm in diameter into each fragment of an anterior wall of a frontal sinus. The pins are inserted at an angle of 30° to 80° to each other and at an angle of 50° to 75° to an external compact plate of the fragments and extend through external and internal compact plates of the fragments of the anterior wall of the frontal sinus. A first retention pin 1.0 mm in diameter is inserted longitudinally into a zygomatic process of a frontal lobe at a depth of 1.5 cm, 1.0 cm above a zygomatico-frontal junction; the above pin penetrates into a frontal process of a zygomatic bone, in parallel to the compact plate of these processes either from the involved side, or from both sides. A second retention pin 1.0 mm in diameter is inserted longitudinally into a middle portion of a nasal bone from the intact side and appears in a nasal cavity through a nasal septum in parallel to the plane of a frontal process of a maxilla and a nasal bone from the involved side. A third retention pin 1.0 mm in diameter is inserted in parallel to the second one through an eyebrow ridge and the frontal sinus from the intact side and appears in the nasal cavity. The final stage of the operation involves bending the external ends of the pins at 1.0 cm above the skin in parallel thereto. The bent ends are cut 1.0 cm short. The complete fragment reduction is followed by embedding all the free ends of the pins into a one-piece autopolymer resin block. Once the fragments are consolidated, the pins are removed one by one.EFFECT: low traumatic optimum regeneration process and prevented risk of osteolysis.2 dwg |
