A minimally invasive intervertebral implant includes a circuitous body defining a luminal axis extending longitudinally therethrough. The circuitous body includes proximal and distal ends oppositely disposed along a lateral axis of the circuitous body. Each of the proximal and distal ends includes an aperture disposed therethrough such that the circuitous body includes a first configuration wherein the proximal and distal ends are at a maximum separation and a second configuration wherein the proximal and distal ends are closer together than in the first configuration.

A prosthetic ankle and foot combination has an ankle joint mechanism constructed to allow damped rotational movement of a foot component relative to a shin component. The mechanism provides a continuous hydraulically damped range of ankle motion during walking with dynamically variable damping resistances, and with independent variation of damping resistances in the plantar-flexion and dorsi-flexion directions. An electronic control system coupled to the ankle joint mechanism includes at least one sensor for generating signals indicative of a kinetic or kinematic parameter of locomotion, the mechanism and the control system being arranged such that the damping resistances effective over the range of motion of the ankle are adapted automatically in response to such signals. Single and dual piston hydraulic damping arrangements are disclosed, including arrangements allowing independent heel-height adjustment.

Intervertebral implants for implanting into an intervertebral space are provided. The implants can comprise one or more layers that are operably attached to one another. An implant can comprise a first layer having a first mating surface that mates with a second mating surface of a second layer. The first mating surface and the second mating surface can have features that allow them to complement each other. The implants can include one or more bore holes for receiving a fixation member. The bore holes can be horizontal, vertical or diagonal. In some cases, the bore holes will be blind bore holes.

Prosthesis for a shoulder joint including a humeral component equipped with a stem, a head component and connection or articulation means of the humeral component with the head component, wherein the prosthesis according to the invention can be used both as a conventional prosthesis and as a reverse-type prosthesis.

A self-aligning prosthetic foot and ankle assembly has an ankle unit pivotally mounting a foot component. The ankle unit contains a hydraulic piston and cylinder assembly having a piston which is linearly movable within a cylinder. The axis of the cylinder is coincident with a shin axis defined by a shin connection interface on the ankle unit. Bypass passages containing damping resistance control valves provide continuous hydraulic damping of dorsi and plantar ankle flexion, the unit being such that, over the major part of the range of damped movement, there is no resilient biasing in either the dorsi or the plantar direction. This confers a number of advantages, including stabilisation of standing, balance control, and improved stair-walking and ramp-walking.

Intervertebral implants for implanting into an intervertebral space are provided. The implants can comprise one or more layers that are operably attached to one another. An implant can comprise a first layer having a first mating surface that mates with a second mating surface of a second layer. The first mating surface and the second mating surface can have features that allow them to complement each other. The implants can include one or more bore holes for receiving a fixation member. The bore holes can be horizontal, vertical or diagonal. In some cases, the bore holes will be blind bore holes.

Prosthetic component provided with a stem, adapted to be implanted in use at a bone of a patient, such as for example a tibial and/or femoral component of a knee prosthesis or a femoral component of a hip prosthesis or a humeral component of a shoulder prosthesis, or a component of an elbow prosthesis, including a device adapted to externally cover and/or to house at its interior at least the stem of the prosthetic component, wherein the device is in use placed between the prosthetic component and the bone of the patient, suitable to stably constrain in use the prosthetic component to the bone of the patient and to prevent the direct contact between prosthetic component and bone of the patient.

Intervertebral implants for implanting into an intervertebral space are provided. The implants can comprise one or more layers that are operably attached to one another. An implant can comprise a first layer having a first mating surface that mates with a second mating surface of a second layer. The first mating surface and the second mating surface can have features that allow them to complement each other. The implants can include one or more bore holes for receiving a fixation member. The bore holes can be horizontal, vertical or diagonal. In some cases, the bore holes will be blind bore holes.

Provided is a structurally stable interbody cage. An interbody cage 1 includes a main body 2 distally including two branches 20,21 that are spaced apart from each other upward and downward, a rod 3 provided in the main body 2 so as to extend between the two branches 20,21, and a slider 4 configured to separate the two branches 20,21 upward and downward, the slider 4 being supported by the rod 3 so as to be movable in an axis direction of the rod, wherein the two branches 20,21 each distally have an inclined surface 26A, the inclined surfaces 26A facing each other, the distance between the inclined surfaces 26A gradually increasing toward distal ends thereof; the slider 4 slides on the inclined surfaces 26A of the two branches 20,21 when the slider 4 moves in the axis direction of the rod 3, and the two branches 20,21 each proximally have a constricted part 27 with a narrow thickness and an opening 5 is present between the upper constricted part 27 and the lower constricted part 27, the opening 5 being formed by a plurality of holes 50 to 52 continuous in the axis direction of the rod 3 and having an upper edge and lower edge that form protruding curves in a lateral view.

A temporary spacer device for a joint of the human body such as a knee joint includes a first component or femoral component, adapted to be constrained to a bone or to the femoral bone of a patient, at the joint of the human body; a second component or tibial component, adapted to be constrained to a bone or tibial bone of a patient, at the joint of the human body, and at least one stem having a proximal end, wherein the first component or femoral component and/or the second component or tibial component include at least one housing seat for the proximal end of the at least one stem, adapted to allow the inclination and/or rotation of the at least a stem with respect to an insertion axis of the proximal end into the at least one housing seat.