The invention provides a method of making a biological disc graft. In one embodiment, the biological disc graft is useful for treating back or neck pain. In one embodiment, the biological disc graft is useful for treating any joint pain. The invention also provides a method of implanting said biological disc graft in a way that is minimally invasive and less dangerous.

A placeholder for vertebrae or vertebral discs includes a tubular body, which along its jacket surface has a plurality of breakthroughs or openings for over-growth with adjacent tissue. The placeholder includes at least a second tubular body provided with a plurality of breakthroughs and openings at least partially inside the first tubular body. The first and second tubular bodies can have different cross-sectional shapes, can be are arranged inside one another by press fit or force fit or can be connected to each other via connecting pins and arranged side by side to one another in the first body.

Intersomatic cage for vertebral stabilization, including a generally prismatic body consisting of surface receptacles containing slow prolonged release substances selected from the classes of anti-inflammatory, anti-infection and bone regrowth promoter drugs. The receptacles are in the form of gratings of grooves.

Intersomatic cage for vertebral stabilization, including a generally prismatic body having an outer rigid framework in the form of a truss within which at least one insert incorporating slow prolonged release substances selected from the classes of anti-inflammatory, anti-infection and bone regrowth promoter drugs is housed.

A spinal implant which is configured to be deployed between adjacent vertebral bodies. The implant has at least one fixation element with a retracted configuration to facilitate deployment of the implant and an extended configuration so as to engage a surface of an adjacent vertebral body and secure the implant between two vertebral bodies. Preferably, the implant is expandable and has a minimal dimension in its unexpanded state that is smaller than the dimensions of the neuroforamen through which it must pass to be deployed within the intervertebral space. Once within the space between vertebral bodies, the implant can be expanded so as to engage the endplates of the adjacent vertebrae to effectively distract the anterior disc space, stabilize the motion segments and eliminate pathologic spine motion. Angular deformities can be corrected, and natural curvatures restored and maintained.

Provided is a structurally stable interbody cage. An interbody cage 1 includes a main body 2 distally including two branches 20,21 that are spaced apart from each other upward and downward, a rod 3 provided in the main body 2 so as to extend between the two branches 20,21, and a slider 4 configured to separate the two branches 20,21 upward and downward, the slider 4 being supported by the rod 3 so as to be movable in an axis direction of the rod, wherein the two branches 20,21 each distally have an inclined surface 26A, the inclined surfaces 26A facing each other, the distance between the inclined surfaces 26A gradually increasing toward distal ends thereof; the slider 4 slides on the inclined surfaces 26A of the two branches 20,21 when the slider 4 moves in the axis direction of the rod 3, and the two branches 20,21 each proximally have a constricted part 27 with a narrow thickness and an opening 5 is present between the upper constricted part 27 and the lower constricted part 27, the opening 5 being formed by a plurality of holes 50 to 52 continuous in the axis direction of the rod 3 and having an upper edge and lower edge that form protruding curves in a lateral view.

An motion preserving intervertebral disc replacement/fusion prosthesis, including an inferior component, including a first top surface, a first bottom surface, a chamber arranged between the first top surface and the first bottom surface, and a plurality of apertures extending from the first bottom surface to the chamber, a superior component, including a second top surface, and a second bottom surface, and a spacing element arranged between the first top surface and the second bottom surface. The prosthesis is arranged to allow a fusion or similar stable union between the prosthetic surfaces and adjacent vertebra elements, while allowing for normal motion between adjacent vertebrae once stable union between the prosthesis and the juxtaposed vertebral endplate and the prosthesis occurs, such union being facilitated by bio absorbable struts that prevent motion until device/endplate union is solid, but permitting fully normal range of motion of the device once strut dissolution has occurred.

Disclosed are interbody fusion spacers, or cages, for insertion between adjacent vertebrae. The cages may have integrated and deployable anchors that allow the cage to have a first, insertion configuration characterized by a reduced size to facilitate insertion through a narrow access passage and into the intervertebral space. Once implanted, the anchors of the cages may be deployed to enable better fixation to bone. The cages may promote fusion to further enhance spine stability by immobilizing the adjacent vertebral bodies.

A device is disclosed that includes a bone stent positioned within a bony access channel formed within a vertebra. The bony access channel may extends from an outer end of the vertebra through an endplate. The device includes an end cap attached to a proximal end portion of the bone stent and is configured to, post-operatively, open to allow a reintroduction of a material to a spinal intradiscal space or intervertebral disc and to seal access to the spinal intradiscal space or the intervertebral disc after the reintroduction of the material.

An expandable fusion device capable of being installed inside an intervertebral disc space to maintain normal disc spacing and restore spinal stability, thereby facilitating an intervertebral fusion. The intervertebral implant may be configured to transition from a collapsed configuration having a first width and a first height to an expanded configuration having a second width and a second height.