An intervertebral implant (100) for the fusion between two vertebral bodies of a vertebral column comprising: a fusion cage (1), extending from a posterior side to an anterior side, adapted to be interposed between two adjacent vertebral bodies of a patient; an asymmetrical fixing plate (2), attached to the fusion cage (1) and having a plurality of passageways (16; 7) for the insertion of bone screws on a single side.

A composite interbody device includes (a) a plastic core having a superior surface and an inferior surface, (b) a superior endplate and (c) an inferior endplate. Each of the superior and inferior endplates includes (i) a bone interface side for interfacing with bone and having a plurality of pores permitting bone growth therein, and (ii) a core interface side, opposite the bone interface side, having a plurality of voids that accommodate material of the plastic core to couple the endplate to a respective one of the superior and inferior surfaces, wherein the voids are isolated from the pores to prevent the material of the plastic core from entering the pores.

Disclosed herein is an orthopedic implant device comprising a porous structure, approximating the shape of a bone, and having modulus of elasticity similar to that of said bone. In one embodiment, further disclosed herein is a method of treating injuries or diseases affecting bones or muscles comprising providing an orthopedic implant device, wherein the orthopedic implant device comprising a porous structure, approximating the shape of a bone, and having a modulus of elasticity similar to that of bone, and using the orthopedic implant device to treat injuries and diseases affecting bones and muscles in a mammal. In another embodiment, disclosed herein is a method of manufacturing an orthopedic implant device using an additive manufacturing (AM) method.

An intervertebral prosthesis or disk prosthesis comprising a front side, a rear side, an upper side which can be placed on the base plate of vertebral body, a lower side which can be placed on the base plate of a vertebral body, a right side, a left side, a cavity which can receive a fluid hydraulic osteocementum, an opening in the cavity and several outlets out from the cavity. The total of the transversal surfaces of the outlets S.sub.V on the front side, the total of the transversal surfaces of the outlets S.sub.H on the rear side, the total of the transversal surfaces of the outlets S.sub.R on the right side and the total of the transversal surfaces of the outlets on the left side satisfy the following conditions: S.sub.L>S.sub.R or S.sub.R>S.sub.L or S.sub.H>S.sub.V or S.sub.V>S.sub.H.

A methodology for grafting together adjacent bony structures is provided using an implant device having an endplate with an inner disc portion and outer ring portion spaced from the inner disc portion by a connecting wall disposed there between. An endplate interior surface includes a retaining structure for securing the endplate to one of the bony structures, and endplate an exterior surface has an integrally formed socket. A ball-joint rod has a longitudinally extending body and an end, and at least a portion of the ball-joint rod end is curvilinear in shape. The curvilinear ball-joint rod end is rotatably disposed in the endplate socket to fixedly interconnect the bony structures.

An Intervertebral implant (100) for the fusion between two vertebral bodies of a vertebral column comprising: an internally hollow fusion cage (1); a fixing plate (2); and cooperating features (8, 10, 17, 19, 20, 21) for fastening said fixing plate (2) on the anterior side of the fusion cage (1); the cooperating features (8, 10, 17, 19, 20, 21) comprising restraining means (8, 17) meant to restrain the fixing plate (2) in a posterior-anterior direction with respect to the fusion cage (1) and pivoting means (10, 19) being arranged to guide a rotation, about a pivot axis (x), of said fixing plate (2) with respect to said fusion cage (1).

Disclosed herein is an orthopedic implant device comprising a porous structure, approximating the shape of a bone, and having modulus of elasticity similar to that of said bone. In one embodiment, further disclosed herein is a method of treating injuries or diseases affecting bones or muscles comprising providing an orthopedic implant device, wherein the orthopedic implant device comprising a porous structure, approximating the shape of a bone, and having a modulus of elasticity similar to that of bone, and using the orthopedic implant device to treat injuries and diseases affecting bones and muscles in a mammal. In another embodiment, disclosed herein is a method of manufacturing an orthopedic implant device using an additive manufacturing (AM) method.

One embodiment of the present invention provides a cage for spinal interbody fusion, which has sufficient durability and allows for bone fusion with a bone implanted to the anterior disk as well as fusion between vertebrae, thereby achieving a more stable bone fusion. The cage for spinal interbody fusion according to the embodiment of the present invention comprises a cage body and a tip which is formed to extend from the cage body and have a predetermined curvature. Further, the cage body has a cavity part which is formed to penetrate from the top surface to the bottom surface of the cage body with a projection part having a plurality of projections formed on the top surface and the bottom surface, and at least one perforation part, which is perforated from the side surface adjacent to the top surface or the bottom surface to the direction of the cavity part, and is located in the anterior direction of the cavity part.

A surgical implant is provided with upper and lower telescoping members which move axially between extended and retracted positions. A fixed length sleeve fits over the telescoping members. The sleeve is load bearing to support axial loads. The sleeve also prevents the telescoping members from retracting and encloses an internal cavity within the implant for packing bone fusion material.

A cage for facilitating fusion of bones, such as vertebrae, or fusion of adjacent bone surfaces is disclosed. In one form, the cage includes a plurality of spaced apart walls comprising a biodegradable polymeric material (e.g., polycaprolactone); an osteoconductive mineral coating (e.g., a calcium compound) on at least a portion of the walls; and a bioactive agent (e.g., a bone morphogenetic protein) associated with the polymeric material and/or the coating. The bioactive agent is present in amount that induces ossification between the bones or adjacent bone surfaces. The cage may also include a fixation plate connected to at least one of the walls.