Implants, systems and methods of using the same
Implants, device, systems and methods for replacing an articulation surface in a joint, for example, shoulder prostheses with stemless humeral components or stemmed humeral components. Methods for using the shoulder prostheses with stemless humeral components or stemmed humeral components are also disclosed.
1. An anchor member, comprising:
a base positioned at a first end of the anchor member and including a top surface;
a circumferential groove extending into the base from the first end of the anchor member;
a central member positioned within the base and the circumferential groove, wherein a top surface of the central member is positioned flush with or below the top surface of the base;
at least one support member coupled to at least a portion of the central member at a first end and at least a portion of an interior surface of the base on a second end, wherein the at least one support member is four support members equally spaced around the central member;
windows positioned between each of the support members, the central member, and an interior surface of the base; and
at least one leg member extending away from a bottom surface of the base, wherein the at least one leg member is four leg members, and wherein each leg member is aligned with and extends away from a support member.
2. The anchor member of claim 1 , wherein the circumferential groove forms an interior lip of the base positioned between the circumferential groove and the central member, and wherein the at least one support member couples to the interior lip.
3. The anchor member of claim 1 , wherein the central member comprises:
a through hole extending through the central member from the first end to the second end of the anchor member.
4. The anchor member of claim 3 , wherein the through hole comprises:
a first wall portion of the through hole extending from the first end toward the second end;
a second wall portion of the through hole extending from the second end toward the first end; and
a threaded portion positioned between the first wall portion and the second wall portion.
5. The anchor member of claim 1 , wherein an exterior surface of each leg member curves as each leg member extends from the base to the central member at the second end of the anchor member.
6. The anchor member of claim 1 , wherein each leg member further comprises:
a cutout extending through each leg member, and wherein the cutouts extend through each leg member in a direction perpendicular to the windows.
7. The anchor member of claim 1 , wherein the anchor member further comprises:
a stem extending away from a bottom surface of the base to a second end, and wherein the stem comprises:
an exterior surface;
at least one interior surface positioned opposite the exterior surface; and
a protrusion extending away from the at least one interior surface.
8. The anchor member of claim 7 , wherein the at least one support member comprises:
a first support member aligned with and coupled to a first end of the protrusion;
a second support member aligned with and coupled to a first end of the stem and extending between the interior surface and the exterior surface;
a third support member positioned between and equally spaced from the first support member and the second support member; and
a fourth support member positioned between and equally spaced from the first support member and the second support member, wherein the third support member is positioned opposite the fourth support member.
9. The anchor member of claim 1 , wherein the base further comprises:
a plurality of fastener openings extending through the base from the first end toward the second end, and wherein the plurality of fastener openings is positioned between an exterior surface of the base and the circumferential groove.
10. An implant system, comprising:
an anchor member, comprising:
a base positioned at a first end of the anchor member and including a top surface;
a circumferential groove extending into the base from the first end of the anchor member;
a central member positioned within the base and the circumferential groove, wherein a top surface of the central member is positioned flush with or below the top surface of the base;
at least one support member coupled to at least a portion of the central member at a first end and at least a portion of an interior surface of the base on a second end;
windows positioned between each of the support members of the at least one support member, the central member, and an interior surface of the base;
at least one leg member extending away from a bottom surface of the base, and wherein each leg member of the at least one leg member is aligned with and extends away from a support member of the at least one support member; and
a cutout extending through each leg member, and wherein the cutouts extend through each leg member in a direction perpendicular to the windows;
an articulating portion; and
a coupling member with a first end and a second end, wherein the articulating portion is coupled to the first end of the coupling member and the anchor member is coupled to the second end of the coupling member.
11. The implant system of claim 10 , wherein the circumferential groove forms an interior lip of the base positioned between the circumferential groove and the central member, and wherein the at least one support member couples to the interior lip; and
wherein the central member includes a through hole extending through the central member from the first end to the second end of the anchor member.
12. The implant system of claim 10 , wherein an exterior surface of each leg member curves as each leg member extends from the base to the central member at the second end of the anchor member.
13. The implant system of claim 10 , wherein the anchor member further comprises:
a stem extending away from a bottom surface of the base to a second end, and wherein the stem comprises:
an exterior surface;
at least one interior surface positioned opposite the exterior surface; and
a protrusion extending away from the at least one interior surface.
14. The implant system of claim 10 , wherein the base further comprises:
a plurality of fastener openings extending through the base from the first end toward the second end, and wherein the plurality of fastener openings is positioned between an exterior surface of the base and the circumferential groove.