Abstract: A bone plate that includes apertures for bone screws and locking screws is disclosed. The locking screws can be in an aperture adjacent to the locking screw aperture such that when the locking bone screws and locking screws are in place, the head of the locking screw at least partially covers the head of the bone screw. In another example, the locking screw aperture is threaded, and the locking screw is placed on top of the bone screw.

Abstract: An expandable intervertebral implant includes a superior plate having a proximal end, an opposing distal end, and a threaded first hole. An inferior plate has a proximal end, an opposing distal end, and a first bore, the inferior plate at least partially bounding an elongated channel that communicates with the first bore. A first lift screw includes a gear wheel rotatably received within the first bore of the inferior plate and a threaded stem projecting from the gear wheel and being threaded into the first hole of the superior plate. A drive screw is rotatably disposed within the channel of the inferior plate, the drive screw having a worm that engages with the gear wheel such that rotation of the drive screw facilitates rotation of the first lift screw which in turn facilitates movement of the superior plate relative to the inferior plate.

Abstract: An expandable intervertebral implant includes a superior plate having a proximal end, an opposing distal end, and a threaded first hole. An inferior plate has a proximal end, an opposing distal end, and a first bore, the inferior plate at least partially bounding an elongated channel that communicates with the first bore. A first lift screw includes a gear wheel rotatably received within the first bore of the inferior plate and a threaded stem projecting from the gear wheel and being threaded into the first hole of the superior plate. A drive screw is rotatably disposed within the channel of the inferior plate, the drive screw having a worm that engages with the gear wheel such that rotation of the drive screw facilitates rotation of the first lift screw which in turn facilitates movement of the superior plate relative to the inferior plate.

Abstract: A bone plate that includes apertures for bone screws and locking screws is disclosed. The locking screws can be in an aperture adjacent to the locking screw aperture such that when the locking bone screws and locking screws are in place, the head of the locking screw at least partially covers the head of the bone screw. In another example, the locking screw aperture is threaded, and the locking screw is placed on top of the bone screw.