FIELD: medicine; traumatology; orthopedics.
SUBSTANCE: invention can be used in treating multi-fragmentary femoral fractures in children. Biomechanical axis of extremity, its length is restored, and rotational displacement is eliminated by aligning the line conditionally drawn through the anterior superior iliac spine, the middle of the patella and the first interdigital space. Length shift is eliminated. Control X-ray imaging is performed and position of fragments and fragments is determined with subsequent installation of marks in the form of injection needles. Distal and proximal base rods are inserted along the outer-lateral surface of the thigh into the distal and proximal bone fragments, on which the distal and proximal base supports are installed, and between them by means of threaded rods, reposition supports are installed. Fragments are repositioned by introducing into each rectangular intermediate fragment two pins with thrust sites perpendicular to the displacement plane, parallel to each other, with maximum spacing of points of their introduction, placing the support pins on the fragment on the side of the displaced cortical layer opposite each other. At the pushing pin, the sharpened part is cut off at an acute angle at distance of 2 cm from the thrust platform, and at the pulling pin—a blunt end to the base of the thrust platform. Further, the fragments are repositioned by passing the wire with a thrust platform through the base of the splinter—a cortical layer, through the center of the splinter, at angle of 90° to the base so that to create counter-lateral compression between the fragment and its bed. After the counter-lateral compression, the pins are fixed on the external brackets of the apparatus.
EFFECT: method enables reducing injuries and improving the functional outcome of treating multi-fragmentary fractures of the femur in children due to single-step elimination of displacement along length and rotational displacement, as well as restoration of biomechanical axis of extremity.
1 cl, 6 dwg, 1 ex
