Abstract: The invention relates to a uniplanar bone anchoring element (10) comprising an anchoring screw (12) with a bone thread (14) and a screw head (18), which is flattened on at least one side (17); a receiving element (20) that has a through-bore which tapers in a lower region (21) and in which the anchoring screw (12) can be received; and two limbs (25, 26) which extend upwards and which comprise a threaded profile (27) in an upper region, said threaded profile being designed for screwing on a securing screw. The receiving element (20) has an inner groove (24) which partly runs at least in the circumferential direction in the seat region of the anchoring screw head (18). The bone anchoring element also comprises a bearing element (40) for inserting into the inner groove (24) of the receiving element (20).

Abstract: The invention relates to a uniplanar bone anchoring element (10) comprising an anchoring screw (12) with a bone thread (14) and a screw head (18), which is flattened on at least one side (17); a receiving element (20) that has a through-bore which tapers in a lower region (21) and in which the anchoring screw (12) can be received; and two limbs (25, 26) which extend upwards and which comprise a threaded profile (27) in an upper region, said threaded profile being designed for screwing on a securing screw. The receiving element (20) has an inner groove (24) which partly runs at least in the circumferential direction in the seat region of the anchoring screw head (18). The bone anchoring element also comprises a bearing element (40) for inserting into the inner groove (24) of the receiving element (20).

Abstract: A self-tapping, self-drilling, cannulated bone screw having a channel chamber. This screw is characterized in that it includes a centering tip which forms the front end of the bone screw.

Abstract: A cervical implant for dogs includes a plate section for connecting two adjacent vertebral bodies and an intervertebral section which replaces the vertebral disc between the two vertebral bodies, wherein the plate section has at least one receptacle for each vertebral body for fastening the implant.