Revision-implant receiver, an implant anchor and method of use thereof

1 . A revision-implant receiver for supporting an implant of a revision joint replacement, the revision-implant receiver-comprising a first receiver element and a second receiver element-which is engaged via a hinge element with the first receiver element;

wherein the first receiver element and the second receiver element define together a central cavity for receiving a stem of the implant therein, and the hinge element comprises a first pair of bendable linking portions between the first receiver element and the second receiver element, each bendable linking portion of the first pair being positioned on either side of the central cavity to define a first hinge axis,

wherein the hinge element comprises a second pair of bendable linking portions between the first receiver element and the second receiver element, each bendable linking portion of the second pair being positioned on either side of the central cavity and defining a second hinge axis;

wherein the hinge element comprises a spacer segment which is positioned between the first receiver element and the second receiver element, said spacer segment being hingeably engaged with the first receiver element by the first pair of bendable linking portions, and with the second receiver element by the second pair of bendable linking portions such that the second hinge axis is spaced-apart from the first hinge axis.

2 . The revision-implant receiver of claim 1 , wherein the first receiver element and/or second receiver element comprises a recessed portion and a one of said bendable linking portions extends from the recessed portion, the recessed portion thereby elongating the linking portion.

3 . The revision-implant receiver of claim 2 , wherein an outer surface of the linking portion and/or the said recessed portion is recessed radially inwardly relative to an outer surface of one or both the first receiver element and second receiver element, and/or wherein an inner surface of the linking portion and/or the recessed portion is recessed radially inwardly relative to an inner surface of one or both the first receiver element and second receiver element.

4 . The revision-implant receiver of claim 2 , wherein the linking portion and the recessed portion meet at a junction, the linking portion transitioning continuously into the recessed portion at the junction.

5 . The revision-implant receiver of claim 1 , wherein one of the first hinge axis and the second hinge axis extends in one of: an anterior-posterior direction, and a medial-lateral direction.

6 . The revision-implant receiver of claim 1 , wherein the second hinge axis is non-parallel with the first hinge axis.

7 . The revision-implant receiver of claim 6 , wherein the second hinge axis is perpendicular to the first hinge axis.

8 . The revision-implant receiver of claim 1 , wherein the first pair of bendable linking portions is integrally formed as a one piece with the spacer segment and the first receiver element; and/or the second pair of bendable linking portions is integrally formed as a one piece with the spacer segment and the second receiver element.

9 . The revision-implant receiver of claim 1 , wherein the first receiver element or an inner surface thereof is or is substantially a truncated cone.

10 . The revision-implant receiver of claim 1 , wherein the second receiver element is a trapezium in cross-section in the coronal plane, and one of: a circle, an ellipse, an oval, and a rectangle with one or more rounded edges and/or one or more rounded corners in cross-section in a transverse plane.

11 . A method of improving an angular orientation of an implant in revision arthroplasty, the method having the steps of:

a) providing a revision implant and a revision-implant receiver, said revision-implant receiver comprising:

a first receiver element and a second receiver element which is engaged via a hinge element with the first receiver element;

wherein the first receiver element and the second receiver element define together a central cavity for receiving a stem of the implant therein, and the hinge element comprises a first pair of bendable linking portions between the first receiver element and the second receiver element, each bendable linking portion of the first pair being positioned on either side of the central cavity to define a first hinge axis,

wherein the hinge element comprises a second pair of bendable linking portions between the first receiver element and the second receiver element, each bendable linking portion of the second pair being positioned on either side of the central cavity and defining a second hinge axis;

wherein the hinge element comprises a spacer segment which is positioned between the first receiver element and the second receiver element, said spacer segment being hingeably engaged with the first receiver element by the first pair of bendable linking portions, and with the second receiver element by the second pair of bendable linking portions such that the second hinge axis is spaced-apart from the first hinge axis; and

adjusting a relative angle between the two hingeably connected portions of the revision-implant receiver to improve the angular orientation of the revision implant in a coronal plane and/or in a sagittal plane.