METHOD FOR LOW-INVASIVE EXTERNAL FIXATION OF SHAFT LONG BONE FRACTURES Russian patent published in 2009 - IPC A61B17/58 A61B17/68 

FIELD: medicine; orthopaedics and traumatology.

SUBSTANCE: distal plate end is fixed with post screw. Projection of plate apertures is scale-marked on guide frame with using removable guiding shoe. Through skin incision, plate is inserted into the shaped bed. It is followed by fixation with rod screws one of which is inserted into the distal fragment to the second cortical shell and fixed to guide frame. The second rod screw is inserted into the proximal fragment and deflected within saggital plane 15-20 degrees by 2-3 cm more proximally than fracture site and fixed to guide frame. Junctions provided on screw socket are used to eliminate width displacement, rotational malalignment and angulations, length displacement by compressing on screw socket. After reposition provided, junctions of external frame are rigidly fixed. Guide protector and trocar are inserted following projections of plate apertures scaled on guide frame through removable guiding shoe. Skin is marked. Soft tissues are incised. Guide protector and trocar penetrate to the incision to cortical shell. Trocar is removed. Drill guide is inserted to form aperture through two cortical shells into which screw is inserted. The rest screws are inserted similarly. Distal plate end is released. Rod screws are removed.

EFFECT: three-plane bone fragment reposition, reliable fixation, lower injuries, prevention of postoperative complications, and reduction of treatment time.

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