The present invention provides 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. In one embodiment, the fusion device includes a body portion, a first endplate, and a second endplate, the first and second endplates capable of being moved in a direction away from the body portion into an expanded configuration or capable of being moved towards the body portion into an unexpanded configuration. The fusion device is capable of being deployed and installed in both configurations.

A method of creating a wedge-shaped recess in a bone is disclosed. The method includes creating a cylindrical recess within a bone, positioning a tool within the cylindrical recess, radially expanding an articulating cutter of the tool and rotating the tool to remove additional bone along the cylindrical recess' side walls and create a wedge-shaped recess; wherein, a diameter of the bottom surface of the wedge-shaped recess is larger than a diameter of a surface opening of the wedge-shaped recess.

A method of forming a bone void for receipt of a prosthesis, comprising the steps of: inserting a stem of a reaming guide assembly into an intramedullary canal of a bone, the reaming guide assembly having first and second reamer guides disposed adjacent to each other, the first and second reamer guides being connected to an end of the stem; reaming the bone through the aperture of the first reamer guide to form a first bone void; inserting the lobe trial into the first bone void; and reaming the bone through the aperture of the second reamer guide to form a second bone void.

The present invention relates to an anchoring system for attaching a prosthesis to a human body, comprising: an anchoring element, an abutment, an abutment screw for attaching the abutment to the anchoring element, the anchoring element comprises a connection area for the abutment, the connection area comprising a press-fit portion such that the abutment is attached to the anchoring element in the connection area by a press-fit connection, wherein the connection area comprises an anti-rotation geometry and the abutment comprising a corresponding mating anti-rotation geometry proximal to the press-fit portion, and where in the connection area comprises a conical portion proximal to the anti-rotational geometry forming a mating geometry for a corresponding conical portion in the through-hole of the abutment.

The present disclosure relates to a system for augmentation of a tibial component. The system includes an augmentation component having a first porous structure, a second porous structure, a top portion having a top surface, and a bottom portion having a bottom surface arranged opposite the augmentation component from the top surface. The system also includes a tibial component and an instrument, with the tibial component being configured to couple to the augmentation component. The instrument includes an engagement portion having a geometry complimentary to that of the augmentation component. Further, a method of augmenting a tibial component is disclosed with the steps of collecting imaging data from a patient, identifying a void in the distal tibia, obtaining an augmentation component that corresponds to the void, coupling the augmentation component to the tibial component and implanting the tibial component into the tibia so the augmentation component occupies the tibial void.

Provided herein are devices and methods for treating inflammation and pain of articular joints (e.g., the knee). An implantable device includes an elongate body extending from a proximal end to a distal end, a flange disposed at the proximal end, a bore extending from an opening at the proximal end into the elongate body, one or more fixation members disposed on an outer surface of the elongate body, and a payload (e.g., a drug-polymer core) having a therapeutic agent disposed within the bore. The payload has a substantially constant surface area on an exposed portion throughout elution of the therapeutic agent after the implantable device is implanted in a body. The therapeutic agent is configured to elute using zero-order kinetics, constantly and continuously at an amount that is above a predetermined lower threshold and does not exceed a predetermined upper threshold unlike a pulse-dose injection.

According to some embodiments, a method of treating a joint of a patient comprises creating a recess in a bone located at or near a targeted joint, wherein the recess includes a generally wedge or truncated cone shape. In one embodiment, the recess in a bone comprises a surface opening along an outer surface of the bone and a bottom opening along the distal end of the recess, such that a diameter of the surface opening is generally smaller than a diameter of the bottom opening. The method additionally comprises providing a joint implant having a wedge or truncated cone shape, wherein a diameter of a top end of the joint implant is generally smaller than a diameter of a bottom end of the joint implant, inserting the joint implant within the recess.

A unitary intervertebral device, having no moving components is provided for non-fusion articulation and fusion applications. The interbody articulating device allows for limited flexion and rotation between the implant and an adjacent vertebra, helping to preserve or restore near-normal motion between adjacent vertebrae. Rotational motion is achieved through one or more protrusions incorporated into the spinal interbody device. In one articulating form, a first protrusion extends perpendicularly from one bearing surface of the interbody device to form a rotational protrusion, while at least a second protrusion extends from the opposite bearing surface of the interbody device to form a non-rotational protrusion. In another form, a single protrusion extends axially from one bearing surface of the interbody device to form a spike or anchoring, rotating protrusion, while the opposite bearing surface may be slightly rounded and/or comprising a bone-ingrowth promoting surface. Similarly configured fusion salvage devices are also described.

An artificial hip joint stem is used to replace the damaged femoral head or acetabulum and includes a stem body having a head fixing part, which fixes a head, and an operating space horizontally opened at the upper side thereof. A head insertion hole connects to the operating space. A screw part is inserted into the head insertion hole. An operation converting part is inserted into the operating space to vertically move by the screw part when the operation converting part is connected to the screw part. A fixing bracket is inserted into the operating space such that the screw part is fixed to rotate without changing the depth thereof. A variable operating part is inserted into a supporting surface of the stem body to adjust a horizontal width by means of the operation converting part. A movable pin fixes the variable operating part to the operation converting part.

A bone void filling prosthesis, which includes a body and a plurality of legs. The body includes an aperture extending therethrough. The plurality of legs are each connected to the body. Each of the plurality of legs includes at least one selectively removable portion for adjusting a length of each of the plurality of legs.