Physical and Mechanical Study on K-U Compression Plate

概要

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A new type of K-U compression plate which was devised in our clinic has the characteristic hole having oblique groove to compression for osteosynthesis. The use of this plate needs not other apparatus for compression between the fractured fragments, and the osteosynthesis with compression is satisfactory by turning the screw only. On K-U compression plate we report the physical and mechanical study which has been done in our clinic, and discuss how to use this plate.This plate was made with 18-8-Mo stainless steel, and showed the hardness of 23° HRC in cold working and the surface of circular arc in cross section. One side of this plate has few round holes for fixing screw, and other side has one or two silding grooves and an oval hole for compressing the screw.Another plate has few round holes for fixing screw and two or three sliding grooves for compression.The sliding groove of this plate shows a gentle slope, and an angle of the inclined plane is about 12-15 degrees.The attention to use K-U compression plate is as follows;1) The plate is made to curve along the curvature of bone.2) Sliding groove of this plate is fixed on thickened side of cortex.3) An oval hole prevents separating between the plate and the fractured fragment.4) Screw are inserted at a right angle to the plate.
西日本整形・災害外科学会の論文