Methods and devices for correcting wear pattern defects in joints. The methods and devices described herein allow for the restoration of correcting abnormal biomechanical loading conditions in a joint brought on by wear pattern defects, and also can, in embodiments, permit correction of proper kinematic movement.

Embodiments of an artificial meniscus are disclosed herein. An artificial meniscus includes at least one circumferential fiber bundle and the at least one non-circumferential fiber bundle embedded in a polymer material. The non-circumferential fiber bundles are fully encapsulated within the polymer material, and the circumferential fiber bundles extend out of anterior and posterior horns of the artificial meniscus to terminate in ends that are configured for fixation to bone. Methods of making and implanting artificial menisci are also disclosed herein. The methods of making include, but are not limited to, stepwise molding, layering, and curing of polymer material around the circumferential and non-circumferential fiber bundles. The methods of implanting include threading ends of the circumferential fiber bundles through first and second bone tunnels, then immobilizing the ends of the circumferential fiber bundles with respect to the bone of the subject.

Embodiments herein are generally directed to spinal implants, systems, apparatuses, and components thereof that can be used in spinal fusion and/or stabilization procedures, as well as methods of installation. The spinal implants may include an intervertebral spacer and a plate member.

Provided is an implant configured for implantation in a bone segment, the implant including a first part that includes a hydrogel portion and a porous material portion, and a second part that includes an annular rim and a bottom that at least partially define a cavity configured to receive the porous material portion of the first part, and a barb extending from the bottom of the second part in a direction away from the cavity.

Methods of making medical devices are described. An example device is an implant used in spaces between vertebrae in a vertebral column of an animal. The example medical device includes a main body that has a lengthwise axis, a proximal end, a distal end, a length that extends from the proximal end to the distal end, an upper wall, a lower wall, a first lateral wall, a second lateral wall, and defines a plurality of pockets, a plurality of pocket supports, an interior chamber, a plurality of windows, and a recess. A pocket support of the plurality of pocket supports is disposed within each pocket of the plurality of pockets. A first mask includes an elongate member and a plurality of projections and is integrally formed with the medical device main body. The mask is used for performing a finishing process on the device and subsequently removed using a tool.

A femoral head prosthesis is a multilayer composite having a metal neck stem component thread or press fit into a hollow rigid shell of metal or ceramic, a polymeric core filling the interior volume under the hollow rigid shell and around a forward part of the neck stem, and a smooth, void-free polymeric articulation layer of at most 12 mm over the exterior of the shell. The prosthesis is formed by a polymeric molding process wherein polymerizing resin or heated thermoplastic material is flowed in a mold through a set of holes through the hollow shell into the interior volume and around the shell's exterior. Once the resin has cured or the thermoplastic cooled, the stem, core, shell and articulation layer collectively form an integral prosthesis of a desired head diameter matching a patient's anatomy.

An implant may include a body having a leading edge portion, a trailing edge portion, and an intermediate portion. The leading edge portion may include a substantially smooth surface forming a substantial majority of a leading edge surface and the trailing edge portion may include a monolithic structure including at least one receptacle configured to receive an insertion tool. The intermediate portion may include a plurality of elongate curved structural members continuously formed with at least one of the leading edge portion and the trailing edge portion. In addition, the elongate curved structural members may be configured such that the intermediate portion remains substantially rigid under compressive forces during insertion of the implant between bone surfaces of a patient. Also, the elongate curved structural members may include an elongate curved structural member extending longitudinally from the leading edge portion to the trailing edge portion and having a substantially sinusoidal configuration.

One aspect relates to a device for producing a spacer having

a stem mold which has an inner space, wherein the inner space is accessible via a proximal opening and wherein the stem mold has a proximal wall which peripherally delimits the proximal opening of the stem mold,

a head mold which has in the interior thereof a hollow space, wherein the hollow space has a spherical surface-shaped inner surface and is accessible via a distal opening, wherein the head mold has a distal wall which peripherally delimits the distal opening of the head mold,

a metal core which has a stem part, a head part and a flange, wherein the flange projects out from the metal core, is arranged between the stem part and the head part and has a proximal surface and a distal surface,

wherein the stem mold and the stem part are shaped such that the stem part is arranged in the inner space, when the proximal wall is resting against the distal surface, and wherein the head mold and the head part are shaped such that the head part is arranged in the hollow space, when the distal wall is resting against the proximal surface.

A glenoid implant system may include a main body formed of a polymer, a base, and an anchor formed of metal. The main body may define an articulating surface and an opposite bone-contacting surface. The base may be formed in the bone-contacting surface of the main body, the base including a hole formed therein. The anchor may have a main section and a threaded post extending from the main section. The anchor may include a plurality of ribs extending in a longitudinal direction of the main section, the plurality of ribs being spaced apart from one another in a circumferential direction of the main section. The anchor may further include a plurality of wedges disposed on a base of the anchor, the plurality of wedges adapted to contact the base formed in the bone-contacting surface of the main body when the threaded post is received within the threaded hole.

An intervertebral implant may include an anterior plate forming a first monolithic structure defining a first end of the implant, and including at least two screw holes each configured to receive a bone screw; and a plurality of coils extending from the anterior plate about a periphery of the implant. The screw holes may be angled such that, when the implant is inserted between two adjacent vertebrae, bone screws are guided into the adjacent vertebrae.