A place holder for spinal surgery including an upper and lower support having an upper and lower support face which each have a first and a second partial area contacting one another at an edge in a closed state, and an expansion device, by which the lateral extent of the support faces and their vertical distance from one another are variable and the place holder is adjustable between a closed state and an expanded state. A first and the second partial area of the upper and lower support face have mutually engaging structures at the edge where they contact one another in the closed state. The expansion device is designed such that the modification to the lateral extent and to the vertical distance is implemented by operation of a single drive in two mutually independent and freely definable movement profiles coded in the place holder.

A spine disc replacement composition, biocompatible support structure, and methods of fabricating the spine disc replacement and biocompatible support structure are provided. The spine disc replacement composition includes the biocompatible support structure that includes one or more of an annular ring, a first plate, or second plate of a biocompatible material and a tissue-engineered construct that includes a bio ink, where the annular ring includes an inner surface, an outer surface, a first planar surface, and a second planar surface, and the biocompatible material is present in an amount of about 1% to about 100% by weight of the biocompatible support structure.

A multifunctional robotic system for performing in vivo procedures includes a control unit comprising a computer processor and a robotic arm in communication with the control unit for multi-axis movement of the robotic arm. The robotic arm has a plurality of passages therein. A printer head is disposed in one of the passages and is configured to create multi-dimensional objects in vivo. The robotic system includes a measuring system disposed in one of the passages. The computer processor has executable software configured to receive signals from the measuring system and is configured to control the printer head and the measuring system to position the object in an in vivo location based upon the signals from the measuring system.

An expandable cage for placement between adjacent vertebrae having two or more upper and lower end plates having compound-angled slots, ramps or rails, and a drive means having corresponding compound-angled slots, ramps or rails configured to slidingly engage the compound-angled slots, ramps or rails of the two or more upper and lower end plates, wherein movement of the drive means in a first direction moves the two or more upper and lower end plates away from each other both vertically and horizontally to expand both a height and a width of the expandable cage from a collapsed state to an expanded state.

The present disclosure includes implant systems, devices, and implants. The interbody spacers including a first endplate, a second endplate, and a coupling member coupled to and extending between the first endplate and the second endplate. Methods of using the interbody spacers are also disclosed.

An intersomatic prosthesis with lateral introduction with a prosthesis body symmetrical along a sagittal plane is provided. The intersomatic prosthesis includes a convex anterior lateral wall along an anterior radius of curvature and a convex posterior lateral wall along a posterior radius of curvature larger than the anterior radius of curvature, a right end wall and a left end wall, and a lower bearing wall and an upper bearing wall open onto an inner space. The lower bearing wall has a central lower portion provided with lower teeth having lower bearing tips defining a lower bearing surface which is planar, and the upper bearing wall has a central upper portion provided with upper teeth having upper bearing tips defining an upper bearing surface which is convex.

A spinal interbody device (IBD) includes a solid wall that at least partially defines a boundary of the IBD and a porous body connected to the solid wall. The porous body includes a plurality of sections that form at least a portion of both a superior and inferior bone interface side of the IBD. Each section of the porous body has a different porosity than an adjacent section such that the porosities increase toward a center of the IBD.

A spinal cage with a wall extending in a longitudinal direction defining an interior space is disclosed. There is also provided a deployable element in movable relation to the spinal cage.

An intervertebral implant device includes a first plate having a first fixation component; and a first set of outwardly extending projecting members. The device also includes a second plate having a second fixation component; and a second set of outwardly extending projecting members that compliment an alignment with the first set of outwardly extending projecting members. The device also includes a core member that extends through the first plate and the second plate. The core member limits movement of the first plate away from the second plate; and a connecting member that connects to the core member.

Expandable fusion devices, systems, instruments, and methods thereof. The expandable fusion device is capable of being installed inside an intervertebral disc space to maintain normal disc spacing and restore spinal stability, thereby facilitating an intervertebral fusion. The fusion device may include a body, a first endplate, and a second endplate. A drive screw may be rotated to move the first and second endplates outwardly and into an expanded configuration. Instruments may be provided to ensure the implant is inserted safely and as intended.