Fixing device for reduction of calcaneus fracture

Abstract

The invention discloses a fixing device for the reduction of calcaneus fracture, which comprises an aiming frame and a main nail. The aiming frame and the calcaneus are positioned and fixed relative to each other, a positioning main nail is arranged through a main aiming part, the relative position and angle of the main nail and the calcaneus can be accurately positioned, and then the main nail isscrewed into the calcaneus of a patient; a first positioning screw is arranged through a first auxiliary aiming part, the first screw is screwed into the calcaneus, and the first screw is also screwed with a first threaded hole and passes through the first threaded hole, and a second positioning screw is arranged through a second auxiliary aiming part, the second screw is screwed into the calcaneus and the second screw is also screwed with a second threaded hole and passes through the second threaded hole, so that the relative positions and angles of the first screw and second screw and the calcaneus are accurately positioned, and the relative positions and angles of the first screw and second screw and the main nail are accurately positioned. The main nail, the first screw and the secondscrew are crossed and matched, the reset and fixed calcaneus fracture part are combined together, the length, width and height of the calcaneus are restored, the posterior talar articular surface isfixed and restored, the postoperative complication is reduced, and the risk of the necrosis of the skin flap is reduced.

Description

technical field [0001] The invention relates to orthopedic surgery equipment, in particular to a device for reducing and fixing calcaneal fractures. Background technique [0002] There are three approaches used to treat calcaneal fractures: [0003] One is conservative treatment, plaster fixation, which has low cost and less trauma, but the fracture end is easily displaced again, the treatment period is long, and the healing is slow, resulting in a high probability of fracture nonunion and malunion; [0004] The second is to use manipulative reduction, percutaneous needle fixation, or open reduction, Kirschner wire or screw fixation. This kind of fixation is stable and difficult to shift again, but it is prone to rotation and displacement, which affects fracture healing and easily leads to malunion. Occasionally, there may even be broken needles or broken nails; [0005] The third is to use the calcaneal anatomical plate for fixation. Although this fixation is stable, it i...

AI Technical Summary

Problems solved by technology

[0003] One is conservative treatment, plaster fixation, which has low cost and less trauma, but the fracture end is easily displaced again, the treatment period is long, and the healing is slow, resulting in a high probability of fracture nonunion and malunion;

[0004] The second is to use manipulative reduction, percutaneous needle fixation, or open reduction, Kirschner wire or screw fixation. This kind of fixation is stable and difficult to shift again, but it is prone to rotation and displacement, which affects fracture healing and easily leads to malunion. Occasionally, there may even be broken needles or broken nails;

[0005] The third is to use the calcaneal anatomical plate for fixation. Although this fixation is stable, it is traumatic and can easily lead to necrosis of the lateral calcaneal flap and nerve damage.

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