Abstract: A compression staple that can secure tissue (for example, bone) easily and effectively, and can provide improved fixation capabilities. The compression staple comprises a yolk or central portion having an S-shaped profile and two posts located at the bottom surface of the central portion. The two posts have a cylindrical configuration and may be cannulated. The posts may be also provided with a plurality of ribbed barbs, preferably extending about one third the length of the posts. The compression staple may additionally comprise two spikes located at the bottom surface of the central portion. The spikes are configured to increase fixation of the staple into the bone and to allow easy penetration through the cortical bone into the cancellous bone.