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 implant system, comprising:
an anchor member;
an articulating portion, comprising:
an articulating surface;
a coupling surface positioned opposite the articulating surface, wherein the coupling surface comprises:
an outer edge extending away from a bottom surface of the articulating portion toward a second end of the articulating portion;
an opening extending into the articulating portion from the bottom surface and toward a first end of the articulating portion;
a lip surrounding the opening and extending away from the bottom surface toward the second end of the articulating portion; and
a recessed region extending into the coupling surface toward the first end of the articulating portion and positioned between the outer edge and the lip; and
at least one slot recessed into the lip and extending from the second end of the articulating portion to the bottom surface of the recessed region; 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.
2. The implant system of claim 1 , wherein the anchor member comprises:
a base positioned at a first end of the anchor member;
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; and
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.
3. The implant system of claim 2 , 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.
4. The implant system of claim 2 , 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.
5. The implant system of claim 4 , 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.
6. The implant system of claim 5 , wherein the at least one support member is four support members equally spaced around the central member.
7. The implant system of claim 6 , wherein the anchor member further comprises:
windows positioned between each of the support members, the central member, and an interior surface of the base.
8. The implant system of claim 7 , wherein the anchor member further comprises:
at least one leg member extending away from a bottom surface of the base.
9. The implant system of claim 8 , 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.
10. The implant system of claim 9 , 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.
11. The implant system of claim 9 , 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.
12. The implant system of claim 2 , 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.
13. The implant system of claim 12 , 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.
14. The implant system of claim 2 , 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.
15. The implant system of claim 1 , wherein the at least one slot is four slots.
16. The implant system of claim 1 , wherein the coupling member comprises:
a first portion positioned at the first end of the coupling member;
a second portion extending out from a bottom surface of the first portion to the second end of the coupling member;
a through hole extending from the first end to the second end; and
a protrusion coupled to and extending away from an exterior surface of the first portion.
17. The implant system of claim 16 , wherein the protrusion of the coupling member engages the at least one slot of the articulating portion.
18. The implant system of claim 16 , wherein the first portion has a first diameter and the second portion has a second diameter, and wherein the first diameter is larger than the second diameter.
19. The implant system of claim 17 , wherein the second portion of the coupling member is received within an opening in a central member of the anchor member.
20. An implant system, comprising:
an anchor member;
an articulating portion, comprising:
an articulating surface;
an engagement protrusion extending away from a bottom surface of the articulating surface; and
a protrusion extending away from the engagement protrusion to a second end of the articulating portion; and
a coupling member with a first end and a second end, the coupling member comprising:
a base member comprising:
a recessed region extending into the base member from a first end of the coupling member;
a circumferential groove inset into an interior surface of the base member; and
a flat surface formed on the bottom of the recessed region;
an extension member extending away from a bottom surface of the base member, wherein the extension member comprises:
a rim extending away from a bottom surface of the base member;
a top surface positioned within the recessed region of the base member, and wherein the top surface is curved between the recessed region and a through hole extending through the coupling member; and
a bottom surface positioned within the rim; and
a protrusion extending away from the extension member; and
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.
21. The implant system of claim 20 , wherein the articulating portion is a concave articulating portion.
22. The implant system of claim 20 , wherein the through hole extends through the protrusion.
23. The implant system of claim 22 , wherein the protrusion of the coupling member is received within the central member of the anchor member and wherein the protrusion of the articulating portion is received within the through hole of the coupling member to couple the anchor member, coupling member, and articulating portion together.
24. The implant system of claim 1 , wherein the anchor member is a stemless humeral component.
25. The implant system of claim 24 , wherein the anchor member has an insertion angle with a vertical orientation.
26. The implant system of claim 24 , wherein the anchor member has an insertion angle with a perpendicular orientation.
27. The implant system of claim 1 , wherein the anchor member is a stemmed humeral component.
28. The implant system of claim 27 , wherein the anchor member has an insertion angle with a vertical orientation.