The fusion plate 10 that compresses bone material at the interface between the first bone portion 929A and the second bone portion 929B includes: (i) a first end portion 12 having a first thickness 464； A thick region 250 having a second thickness 466 greater than one thickness 464 and spaced from the first end 12, and (iii) the thick region 250 at a compression angle 22 with respect to the planar axis 246. And a compression opening 22 extending therethrough. The compression angle 224 may be between about 30? And 55? With respect to the planar axis 246. The first end portion 12 is further away from the top surface 26 and from the bone portion 929A, 929B than the upper surface 26 when the fusion plate 10 is implanted substantially adjacent to the bone portions 929A, 929B. And a thick region 250 that extends.第１骨部９２９Ａと第２骨部９２９Ｂとの間の境界面で骨物質を圧迫する癒合プレート１０は、（i）第１の厚さ４６４を有する第１端部１２と、（ii）第１の厚さ４６４より大きい第２の厚さ４６６を有し、第１端部１２から離隔する厚い領域２５０と、及び（iii）前記平面軸２４６に対して圧迫角度２２で前記厚い領域２５０を貫通して延びる圧迫開口２２とを含む。前記圧迫角度２２４は、前記平面軸２４６に対して約３０°と５５°の間になり得る。前記第１端部１２は、上面２６と、前記癒合プレート１０が実質的に前記骨部９２９Ａ，９２９Ｂに隣接して移植されると、前記骨部９２９Ａ，９２９Ｂから前記上面２６よりもさらに離れて延びる厚い領域２５０とを含む。
