The present disclosure relates to flexible porous implant fixation systems. Certain aspects provide flexible porous structures including a helicoidal structure and a plurality of interlocking elements coupled to the helicoidal structure, the helicoidal structure being configured to connect the plurality of interlocking elements. Certain aspects provide a body comprising a porous structure, the body configured to interface with a bone perpendicular to an axis of the bone； and a screw comprising a head, wherein the head is configured to lie within a volume of the body while a portion of the screw extends away from the body, wherein the body is configured to restrict movement of the head within the body along the axis of the bone.
