METHOD AND DEVICE FOR TREATING FRACTURES AND PSEUDOARTHROSES OF FEMORAL NECK Russian patent published in 2000 - IPC

FIELD: medicine. SUBSTANCE: method involves introducing threaded rods of 6 mm diameter through pseudoarthrosis or fractured bone zone in parallel to one another into the neck and head of the femur. Threaded portions of the working rod ends go completely into the femur head. One or two threaded rods are introduced into the trochanteric zone some distance apart from pseudoarthrosis zone. Free ends of the threaded rods are fixed on arch-shaped plates of proximal base of the device. The parallel rods are fixed with controlled compression. The arch-shaped plates are connected with threaded tie-rods. Two threaded rods are introduced into each of proximal and distal regions of diaphysis along its anteroexternal surface at an angle of 20-45 deg to one another. Their free ends are fixed on both sides of the arch-shaped plates and the distal base of the device creating crossover on some extent. The arch-shaped plates are connected with threaded tie-rods. Oblique intertrochanteric femur osteotomy is carried out, distal femur fragment is placed under pseudoarthrosis zone and femur head. The proximal and distal bases of the device are joined using threaded tie-rods with compression created on splinter fragments junction. Compression in the pseudoarthrosis zone is controlled by screwing nuts on parallel threaded rods. EFFECT: enhanced effectiveness of treatment; controlled interfragmental compression; reliable fixation. 2 cl, 1 dwg