Implant devices for insertion between first and second bone structures are disclosed and include an implant device body having an exterior surface and an insertion tool interface including a plurality of apertures configured to secure the implant device to an insertion tool, and includes a first aperture (e.g., a threaded aperture) configured to secure the implant device body to a threaded element of the insertion tool, and a second aperture to receive a finger element of the insertion tool. The plurality of apertures are accessible from at least one edge of the implant device body and extend into the implant device body. The implant device may include a fixation interface including a plurality of screw alignment holes configured to receive and to orient screws at predetermined angles, and to house a head of the screw within the implant device body after insertion of the implant device is complete
