COMBINED TRANSOSSEOUS ROD-TYPE FIXATION APPARATUS FOR TREATING BONE FRACTURES WITH RIGID CONNECTION JOINT Russian patent published in 2015 - IPC A61B17/66 

FIELD: medicine.

SUBSTANCE: apparatus comprises the first transosseous rod-type fixation apparatus and transosseous elements. The first transosseous rod-type fixation apparatus comprises a long threaded rod, the first slides with two mutually perpendicular holes at a certain distance from each other, and configured to be fixed on the long threaded rod, e.g. by screw nuts in one of the holes of the first slides and to be fixed, e.g. by screw nuts of the first threaded cross rods in the second hole of the first slides. The apparatus has the second slides provided with two mutually perpendicular holes at a certain space from each other, fixed in the first hole, e.g. by screw nuts on the opposite ends of the first cross rods. In the second hole of the second slides, there are the first transosseous elements fixed, e.g. by screw nuts and arranged in one or more planes crossing at an angle of 0 to 30 degrees, and forming the first reposition and fixation joints together with the slides and threaded cross rod. The apparatus has the second reposition and fixation joints in the form of the third slides with two mutually perpendicular holes at a certain distance from each other, and configured to be fixed on the long threaded rod, e.g. by screw nuts in one of the holes of the third slides and to be fixed, e.g. by screw nuts of the second threaded cross rods in the second holes of the third slides. The apparatus has the fourth slides provided with two mutually perpendicular holes at a certain space from each other, fixed in the first hole, e.g. by screw nuts on the opposite ends of the second cross rods. In the second hole of the fourth slides, there are the second transosseous elements fixed, e.g. by screw nuts and arranged in one or more planes at an angle of 0 to 30 degrees. The planes of the second transosseous elements are arranged in relation to the plane of the first transosseous elements at an angle of 70 to 120 degrees. The apparatus has the second transosseous fixation apparatus similar to the first one, mounted on a bone of adjoining segments, two cross rods and four slides with two mutually perpendicular holes at a certain distance from each other, the first and second of which are attached through the first holes on the connected end of the long threaded rod of the first transosseous fixation apparatus. The third and fourth newly introduced slides are fixed through the first holes, e.g. by screw nuts on the connected end of the long threaded rod of the second transosseous apparatus. In the second holes of the first and third slides, there is the newly introduced first threaded cross rod fixed, e.g. by screw nuts. In the second holes of the second and fourth slides, there is the newly introduced second threaded cross rod fixed, e.g. by screw nuts.

EFFECT: more effective reposition and stabilisation of bone fragments and joints in extrafocal transosseous osteosynthesis, reduced length of operation, labour input of surgical and postoperative management, ensured delayed reposition, eliminated joint contracture, reduced length of postoperative rehabilitation and improved patient's quality of life.

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