An expandable intervertebral implant is disclosed for use in between adjacent vertebral bodies in a spine. An expandable intervertebral implant may include an upper plate having a first upper side and a second upper side, a lower plate having a first lower side, a second lower side, and a first lattice that connects the first upper side to the first lower side. The expandable intervertebral implant may further include a second lattice that connects the second upper side of the upper plate to the second lower side of the lower plate and an opening having a longitudinal axis between the upper plate, lower plate, first lattice, and second lattice. The expandable intervertebral implant may further include an expansion mechanism comprising a driver that expands the upper plate and the lower plate away from each other along a cephalad-caudal axis by deforming the first lattice and the second lattice.

A spinal fusion implant including a body and a jacket is disclosed. The jacket includes at least two radiopaque markers extending therefrom for use in determining the position of the implant after placement between intervertebral bodies. Methods of implanting and evaluating positioning of the implant are also disclosed.

The invention relates to a bone augmentation piece (1) for filling out a defective area (2) in a bone (3), comprising a main part (5) which is designed to be inserted into said defective area (2) without a gap, wherein the main part (5) comprises a truss-type structure made of webs (6) and cavities (7). The invention also relates to a kit consisting of a bone augmentation piece (1) of this type, comprising an implant inserted thereinto, such as a dental implant. The invention also relates to the use of the claimed bone augmentation piece (1) as a drill jig (18).

Various embodiments of implant systems and related apparatus, and methods of operating the same are described herein. In various embodiments, an intermedullary implant for interfacing with a bone structure includes a web structure, including a space truss, configured to interface with human bone tissue. The space truss includes two or more planar truss units having a plurality of struts joined at nodes. Implants are optimized for the expected stress applied at the bone structure site.

Arthroplasty components include an articular surface and a bone-facing surface. In some examples, the bone-facing surface bears at least one anchoring element adapted for an oblique implantation trajectory. The anchoring element includes a reinforcement plate, a dowel, and surface features. Each surface feature resists forces acting along a different direction. In other examples, the bone-facing surface bears anchoring elements that deform along the primary or longest axis of the anchoring element during insertion. In yet other examples, the bone-facing surface is enlarged relative to the articular surface so that at least a portion of the perimeter of the articular surface is circumscribed by the perimeter of the bone-facing surface.

A drill guide includes a working portion and a shaft, with a joint formed between the working portion and the shaft so that the shaft is movable relative to the working portion about the joint. The working portion includes at least one drill guide hole which receives a drill for making a hole in a bone. The joint isolates the working portion from unintentional movements of the shaft so that the working portion remains stable against a bone surface. The joint also enables the shaft to be used as a retractor or pry bar against surrounding anatomical structures if desired. The drill guide may be included in a system with an implant component and/or other surgical instruments.

Low profile offset reamers include reamer heads with outer diameters that are substantially greater than the overall height of the working portion, which includes the reamer head, a reamer coupler, and a working tip that supports the reamer head and reamer coupler. The overall height is measured parallel to the rotational axis of the reamer head, and the outer diameter is measured perpendicular to the rotational axis.

A surgical implant assembly includes a surgical implant, a bone plate, and fixation devices. The surgical implant includes a top surface, a bottom surface disposed in opposed relation relative to the top surface, first and second surfaces interconnecting the top and bottom surfaces, and a front surface. First ends of the first and second side surfaces define a back surface extending across a first end of the surgical implant, and the front surface extends across a second end of the surgical implant and interconnects second ends of the first and second side surfaces. At least one cavity is defined in the surgical implant. The bone plate includes an elongate body extending between first and second end portions. The elongate body is positionable adjacent the front surface of the surgical implant. The fixation devices are configured to secure the surgical implant or the bone plate to osseous tissue.

A corpectomy cage includes a main body, a first end cap, and a second end cap. The main body is shaped as a hollow rectangular prism, and includes a first end and a second end. The first end has a plurality of first receivers formed therein, and the second end has a plurality of second receivers formed therein. The first end cap includes a plurality of first legs configured to be received within respective first receivers to removably engage the first end cap with the first end of the main body. Similarly, the second end cap includes a plurality of second legs configured to be received within respective second receivers to removably engage the second end cap with the second end of the main body. Each of the end caps further includes a plurality of teeth arranged opposite the plurality of legs.

A glenoid component includes a laterally facing bearing surface configured to engage a bearing surface of an element associated with a humerus, and a stem portion extending medially away from the bearing surface. The stem portion is configured such that when implanted in a scapula the stem portion includes three cross-sections parallel to a medial lateral plane. The middle cross-section has a length in the medial-lateral direction which is shorter than the lengths of the other two cross-sections in the medial lateral direction.