Stabilizer for the treatment of the fracture of the neck and upper metaphysis of the femur

摘要

A stabilizer for the treatment of the fractures of the neck and the upper metaphysis of the femur. The stabilizer plate 1 has a groove 2 in its bottom part and bent between tapered holes 3 passing into oval holes at their lower parts and tapered holes 4 passing into round holes at their lower part at an angle such that, after bone bolts 8 are secured in the porous bone fragments, the angle between them and plate 1 is approximately the same as that formed between the neck and shaft of the bone. The bolts 8 have a high pitch cortex thread 9 at the end of a cylindrical core, the latter having an enlarged part 12 on the opposite side and of the same width as that of groove 2 and terminating in a protruding shank 13 with a machine thread, while bolts 5 each have an enlarged disc-like part 7 disposed between the cortex and machine threads and having a width equal to that of groove 2, and conical-shaped nuts 14 are screwed on to protruding shanks 6 and 13.