PROBLEM TO BE SOLVED: To provide a bone fixation plate that is hard to be deformed, can firmly join and fix a bone part with the bone part divided while a step difference is formed, and almost eliminates a risk of moving the bone part and the bone part in the separating direction and increasing a step difference between the bone part and the bone part.SOLUTION: A bone fixation plate 1 is characterized as follows: a bend step difference part 1c is formed in a boundary portion between a proximal end side plate part 1a extending substantially in the horizontal direction and a distal end plate part 1b through-holes 1d for a screw are formed in both plate parts 1a, 1b the bend step difference part 1c is bent in an included angle of 75 to 105° with respect to the proximal end side plate part 1a or the distal end plate part 1b in a side view and a distance between the bend step difference part 1c and the through-holes 1d for a screw positioned in both neighbors is 3 to 15 mm in a plan view. The bend step difference part 1c is conformed to a step difference surface between the bone part and the bone part and both plate parts 1a, 1b are screwed in both bone parts, and thereby the bone fixation plate 1 becomes hard to be deformed and the movement of the bone part can be inhibited.SELECTED DRAWING: Figure 3COPYRIGHT: (C)2017,JPO&INPIT【課題】変形し難く、分断された骨部と骨部を段差が形成された状態で強固に接合固定でき、骨部と骨部が離反方向に動いたり、骨部と骨部の段差が大きくなったりする心配が殆どない骨固定用プレートを提供する。【解決手段】略水平方向に伸びる近位端側プレート部1aと遠位端側プレート部1bとの境界部分に屈曲段差部1cが形成され、双方のプレート部1a,1bにねじ用貫通孔1dが形成され、側面視において、屈曲段差部1cは近位端側プレート部1a又は遠位端側プレート部1bに対して75~105°の夾角で屈曲し、平面視において、屈曲段差部1cとその両隣りに位置するねじ用貫通孔1dの距離が3~15mmである骨固定用プレート1とする。屈曲段差部1cを骨部と骨部の段差面に沿わせて双方のプレート部1a,1bを双方の骨部にねじ固定するので、骨固定用プレート1が変形し難くなり、骨部の動きを阻止できる。【選択図】図3
