Osteogenesis scaffold such as for spinal fusion or an intermedullary nail includes a number of arcuate struts. The scaffold may have a functional modulus of elasticity that is a result of the modulus of the material of the struts together with the architecture of the struts, and may be within the range of 5 GPa and 75 GPa. An anisotropy of a physical property such as stiffness, compressive strength or elastic modulus corresponds to the same physical property of native bone in the vicinity of the intended implantation site.

A device configured for use as a medical implant is disclosed. The device includes an anchor body including a first end configured to retain an elastic articulating component and a second end including a collar defining a receptacle configured to receive a portion of a fixation element. The fixation element can include a head portion and a threaded portion. The head portion is configured to be inserted and retained within the receptacle and the threaded portion is configured to retain the fixation element within a patient recipient site.

An expandable intervertebral total disc replacement implant, including an inferior component, including a first core including a first outer surface and a first inner surface, and a first arm telescopingly engaged with the first core, a superior component, including a second core including a second outer surface and a second inner surface, and a second arm telescopingly engaged with the second core, and an expansion mechanism connected to the first core, the second core, and at least one of the first arm and the second arm.

A method of preparing an implantable spacer device utilizing an elastomeric material containing antibiotic(s), radiation-emitting seeds, and/or other bio-active substance to treat diseased, infected and/or injured bony structures, soft tissue, or neural structures. The elastomeric material may include silicone elastomers.

The three-dimensional lattice structures disclosed herein have applications including use in medical implants. Some examples of the lattice structure are structural in that they can be used to provide structural support or mechanical spacing. In some examples, the lattice can be configured as a scaffold to support bone or tissue growth. Some examples can use a repeating modified rhombic dodecahedron or radial dodeca-rhombus unit cell. The lattice structures are also capable of providing a lattice structure with anisotropic properties to better suit the lattice for its intended purpose.

An orthopaedic prosthesis is disclosed. The orthopaedic prosthesis includes a frame including a plurality of beams defining an open-cell structure and a shell applied to the frame. The frame includes a proximal arm, a distal arm, and a central body connecting the proximal arm to the distal arm. The shell extends over the proximal arm, the distal arm, and the central body of the frame. A method of implanting an orthopaedic prosthesis is also disclosed.

A percutaneous collar is made up of a central rigid ring and a flexible mesh inside a microporous silicone disc. The volume of the disc has a three-dimensional network of interconnected micropores forming microchannels connecting both external faces of the disc through the external micropores to the internal flexible mesh wherein the flexible mesh is formed by crossed longitudinal and radial elements or plates which form a plurality of holes.

Various embodiments provide systems and methods for repairing or replacing intervertebral discs as a treatment for derangements. Systems and methods may comprise an intervertebral disc implant for deployment into an intervertebral disc space wherein the nucleus has been at least partially evacuated from the deranged intervertebral disc. The intervertebral disc implant may be intraoperatively and postoperatively filled and/or re-filled with a growth matrix. The intervertebral disc implant may be differentially permeable to the growth matrix to provide directional growth and/or diffusion of the growth matrix to restore height to the intervertebral disc space. Systems and methods may further comprise an implant delivery device for deploying the intervertebral disc implant into the intervertebral disc space.

An orthopedic implant apparatus, said apparatus comprising: a body, said body having a generally cylindrical shape, a flat bottom surface, and a top surface; at least one stem, said at least one stem connected to said bottom surface of said body; an articular component, said articular component having a bottom connecting side and a top bearing side; and a flexible component, said flexible component disposed between said body and said articular component, said flexible component attached to said top surface of said body and said bottom side of said articular component.

A surgical instrument for implanting a semi-rigid medical implant. The surgical instrument includes a shaft, an accessory shaft, an actuation mechanism and an implant engagement mechanism. The shaft has a channel formed therein. The shaft has a proximal end and a distal end. The accessory shaft is slidably mounted in the channel. The accessory shaft has a proximal end and a distal end. The actuation mechanism is mounted to the shaft proximate the proximal end thereof. The actuation mechanism is capable of causing the accessory shaft to slide with respect to the shaft. The implant engagement mechanism is attached to the distal end of the accessory shaft. The implant engagement mechanism is capable of engaging a semi-rigid surgical implant.