Prosthesis for knee arthroplasty comprising a femoral component with a minimum thickness and with two different systems for fastening to the femoral condyle and a tibial component with an upper surface which can have a double profile with a differentiated congruence profile. The tibial component can be made with a single body or in two parts of different materials.

Provided is a method of stimulating regeneration of cartilage in an area of diseased cartilage in a layer of cartilage in a first bone of a joint. The method includes forming a first recess in the first bone at the area of diseased cartilage, and positioning a first spherical implant within the first recess, where the first spherical implant is dimensioned to be smaller than the first recess so that the first spherical implant is capable of moving in two dimensions within the first recess resulting in shear forces between the first spherical implant and the cartilage and stimulates formation of fibrous tissue which subsequently transforms into cartilage.

A composite joint implant device replaces or repairs damaged meniscus tissue in an animal or human. In one embodiment, a composite joint implant comprises a polymeric body which is reinforced with a pre-formed engineered ligature mechanism. The ligature reinforces the polymeric body around the circumference and is used for attaching the device within an animal or human body. The ligature mechanism internally supports the transmission of vertical loads into tensile stresses. The ligature mechanism can be coated with a compatible material to promote integration with the polymeric body and coated with an encapsulation material.

A motion preserving spinal implant is presented for use in placement between intervertebral space for total replacement of a degenerated spinal disc. The motion preserving spinal implant has a pair of end plates sandwiched around an inner core and an outer core, with the inner core being concentrically positioned within the outer core. The outer core encapsulates the inner core and provides adequate sealing of the inner core while maintaining flexibility and elasticity to advantageously support physiological movements. The inner core is constructed of an elastomeric material and acts as a solid diaphragm in order to resist and withstand localized compression and other forces. The end plates provide anchoring and fusion with adjoining vertebra and hold the inner and outer cores in place. The motion preserving spinal implant restores the normal height and natural function of the degenerated spinal disc and preserves the natural motion of the spine.

A self-seating spinal cervical cage, including a pair of spaced support members, each respective support member having a first end and a second end, a plurality of teeth extending from each respective first end and each respective second end, a plate member bisecting each respective spaced support member, an array of apertures formed through the plate member, and a porous scaffolding operationally connected to the plate member and defining an open cell pore network. The plate member bisects the porous scaffolding. The plate member and the spaced support members define a unitary titanium body.

A spinal fusion bone scaffold having a first member including a first base plate and a first plurality of struts each having a first end engaging the first base plate and a second, free end. The first plurality of struts is configured to form at least part of a hyperbolic curve such that said bone scaffold includes an overall optimized hyperboloid shape having an outer diameter and an inner waist diameter. The scaffold may include a second member including a second plurality of struts each having a first end and a second end, each of the second plurality of struts being configured to form at least part of the hyperbolic curve. The scaffold includes connecting means for connecting said second member to said first member, which are aligned so as to complete the hyperbolic curve while generating hyperboloid geometry of the bone scaffold.

The presented invention is a system for performing reverse ankle replacement in the setting of ankle joint osteoarthritis, and other degenerative conditions of the ankle joint including avascular necrosis. The presented tibial and talar components can be implanted in a cement-less or cemented fashion. The prosthesis of the presented invention consists of (1) a tibial component which includes a planar undersurface with porous texture applied to its upper, non-bearing surfaces, (2) a talar component which includes a bearing surface which is concave, (3) a polyethylene component which includes a bearing undersurface which is convex, and (4) multiple talar component embodiments with or without flanges and/or screw holes for accommodation of bone screws for additional fixation and for permitting sub-talar joint fusion.

This invention revolves around medical devices, especially the non-metal ball-headed hip joint prosthesis, including acetabular cup, non-metal femoral head and femoral stem prostheses. In this invention, the acetabular cup is combined with the lining as a metal cup, and the traditional metal or ceramic ball head is replaced by non-metal femoral head prosthesis with metal inner core.

A bone graft containment device includes a plurality of cage segments connected to one another along a longitudinal axis, each of the cage segments connected to an adjacent one of the cage segments via a connection which permits movement of the cage segments relative to one another so that the bone graft containment device is deformable to a desired configuration for placement within a target space of a bone, each cage segment extending along from a first end to a second end and including a channel extending therethrough so that channels of the plurality of cage segments, in an initial configuration, are aligned along the longitudinal axis, the channels configured to be packed with a bone graft material.

The present invention is an internal osseointegrated transfemoral amputee implant device and related methods. The device is designed to restore the enclosed nature of the bone marrow system which is disrupted by amputation, plus provide a pressure tolerant (weight-bearing) surface and mechanical anchoring for the iliotibial band.