In accordance with one or more embodiments herein, a patellofemoral implant arrangement 200 for repairing damage in a patellofemoral articulation of a patient is provided. The patellofemoral implant arrangement 200 comprises a femoral trochlear implant 250, comprising an articulating surface 255, and a patellar implant 300, configured to be inserted, preferably with press-fit, into a recess 620 in a patella 600 in such a way that the perimeter of an articulating surface 310 of the patellar implant 300 does not extend beyond a surrounding articulating surface of the patella 600. The articulating surfaces 255, 310 of the femoral trochlear implant 250 and the patellar implant 300 are designed to allow that they at least partly interact with each other when the implants 250, 300 are implanted into the knee joint and the patella 600 lies in the intercondylar groove of the femur. Preferably, the articulating surface 255 of the femoral trochlear implant 250 is a metal or ceramic surface; and the articulating surface 310 of the patellar implant 300 is not a metal or ceramic surface. The articulating surface 310 of the patellar implant 300 may be designed to correspond to the curvature of a simulated healthy articulating surface of the undamaged patella 600 at the site of diseased cartilage. The contour curvature of the articulating surface 310 may be generated based on the determined surface curvature of the cartilage and/or the subchondral bone in a predetermined area comprising and surrounding the site of diseased cartilage and/or bone in the patella 600, to mimic the original, undamaged, articulating surface of the patella 600.

A method for constructing a three-dimensional multi-scale surface to obtain controlled and improved physical and chemical configurations to promote the integration of orthopedic and/or dental implants, to human and/or animal tissues, in different shapes and geometries in a versatile manner, and can be applied to all types of metals, metal alloys and/or ceramic compounds. This method includes the modification at the macroscopic level of the roughness, with an objective of promoting the mechanical interlocking of the implant, followed by the modification of the surface for the formation of microtopography, then the microtopography is changed to obtain a nanotopography with characteristics that optimize cellular metabolic responses related to attraction, adhesion, spreading, proliferation and cell growth, in addition to phenotypic and genotypic inductions in undifferentiated cells and in osteoblast lineage, responsible for mineralization and bone neoformation. As a result, the interface between implant and bone is improved.

A spinal implant comprises a first member, a second member and an actuator defining a transverse pivot axis, A first link is connected to the first member and the actuator adjacent the pivot axis. The first link includes an inner surface defining a cavity. A second link is connected to the second member and the actuator adjacent the pivot axis. The actuator is rotatable for translating the pivot axis such that the second link is movable within the cavity to move the members between a contracted configuration and an expanded configuration. Systems and methods of use are disclosed.

A prosthesis for at least a portion of a bone, in particular a bone or portion thereof to which, in the natural condition, a tendon of a muscle is attached, wherein the prosthesis is manufactured of a metal or an alloy thereof and is provided with at least one area situated in the surface of the prosthesis that faces outward once the prosthesis has been placed in the body, the area being formed by a layer provided with open spaces that are connected to each other, wherein the open spaces are dimensioned for allowing the growth of bone tissue therein.

Stemless components and fracture stems for joint arthroplasty, such as shoulder arthroplasty, are disclosed. Also, methods and devices are disclosed for the optimization of shoulder arthroplasty component design through the use of medical imaging data, such as computed tomography scan data.

Exemplary embodiments of apparatuses and methods of an expandable fusion device are provided. In one embodiment, an intervertebral implant can be provided, having a first endplate having an upper surface and a lower surface, a second endplate having an upper surface and a lower surface. A first side wall extends from the first endplate and a second side wall extends from the second endplate and are configured to engage one another to provide a selective variable height between the first endplate and the second endplate. The first side wall and the second side wall form a substantially hollow portion substantially enclosed by the first endplate, second endplate and the side walls. The substantially hollow portion is configured to receive bone growth inducing material.

An intervertebral implant for implantation in an intervertebral space between vertebrae. The implant includes a body extending from an upper surface to a lower surface. The body has a front end, a rear end and a pair of spaced apart first and second side walls extending between the front and rear walls such that an interior chamber is defined within the front and rear ends and the first and second walls. The body defines an outer perimeter and an inner perimeter extending about the internal chamber. At least one of the side walls is defined by a solid support structure and an integral porous structure, the porous structure extending from the outer perimeter to the inner perimeter. The porous structure embeds or encapsulates at least a portion of the solid support structure.

A spinal implant includes a body having opposite first and second end walls and opposite first and second side walls. The side walls each extend from the first end wall to the second end wall. A first cap is coupled to top ends of the walls. A second cap is coupled to bottom ends of the walls. The implant includes an opening extending through the caps such that the first cap defines a first ledge extending from the walls to the opening and the second cap defines a second ledge extending from the walls to the opening. Systems and methods of use are disclosed.

A bone screw fixation system includes a bone screw body having a screw head at one end of the screw and a screw tip at an opposite end of the screw, the screw head having an internal complex geometric shaped drive and internal threads within the screw head; and a screw inserter compatible with the screw head and having a complex geometric shaped drive configured to matingly engage the internal complex geometric shaped drive of the screw head and a threaded tip configured to thread into the internal threads of the screw head.

An orthopedic prosthesis for stimulating bone growth may include a substrate having at least one bone-facing surface and at least one internal surface, at least one piezoelectric nanostructure coupled to the at least one bone-facing surface of the substrate, at least one charge storing material placed within the orthopedic prosthesis proximate the at least one internal surface, and an interconnect in electrical communication with the at least one piezoelectric nanostructure and the charge storing material. The at least one piezoelectric nanostructure may be configured to generate an electric charge in response to at least one mechanical force applied to the at least one piezoelectric nanostructure and the interconnect may be configured to transfer the electric charge to the at least one charge storing material to promote bone in-growth within the orthopedic prosthesis and/or on the at least one bone-facing surface.