FIELD: medicine; orthopaedics.
SUBSTANCE: in the proximal and distal fragments of the femur two channels are drilled in each fragment, and two transosseous rods are inserted in each channel. The transosseous rods, passing near the fracture line of the proximal and distal fragments of the femur are fixed in sliders of reducing units, putting them on through oblong holes and are fixed at the required angle using lining figured nuts and are attached to the inner surface of arcs by supporting arms. The rod-shaped device is mounted from three arcs with openings, joined together by threaded bars. In the intermediate fragment two channels are drilled and two transosseous rods are inserted and fixed in repositioning units, and attached to both sides of the middle arc with openings by supporting arms. The central, intermediate and peripheral fragments are repositioned in a single step by moving the middle arc using threaded bars, repositioning units and transosseous rods. Repositioning is controlled using an electron-optical image converter. To stabilise the attained repositioning, transosseous rods are inserted each into central and peripheral fragments. The transosseous rods are attached to the arcs by supporting arms on the outer surface of the arcs.
EFFECT: accurate repositioning of fragments, consolidation of the fracture site, rigid fixation, reduced proneness to injury, shorter durations of treatment.
1 dwg
