Method of implanting knee prosthesis assembly with ligament link

• US 10,149,767 B2
• Filed: 11/04/2014
• Issued: 12/11/2018
• Est. Priority Date: 05/28/2009
• Status: Active Grant

• Current Assignee: Biomet Manufacturing, LLC (Zimmer Biomet Holdings, Inc.)
• Original Assignee: Biomet Manufacturing, LLC (Zimmer Biomet Holdings, Inc.)
• Inventors: Metzger, Robert, Uthgenannt, Brian A., Stone, Kevin T.
• Primary Examiner(s): Prone, Christopher D
• Application Number:
  US14/532,333
• Publication Number:
  US 20150057757A1
• Time in Patent Office: 1,498 Days
• CPC Class Codes: A61F 2/3836 Special connection between upper and lower leg, e.g. constrained
• CPC Class Codes: A61F 2/3868 with sliding tibial bearing
• CPC Class Codes: A61F 2/3886 for stabilising knees against anterior or lateral dislocations
• CPC Class Codes: A61F 2002/30462 retained or tied with a rope, string, thread, wire or cable
• CPC Class Codes: A61F 2002/30708 Means for distinguishing between left-sided and right-sided devices, Sets comprising both left-sided and right-sided prosthetic parts
• CPC Class Codes: A61F 2220/0075 sutured, ligatured or stitched, retained or tied with a rope, string, thread, wire or cable

Abstract

A method of implanting a prosthetic knee joint assembly. The method includes: coupling a femoral component to a femur, and coupling a tibial component to a tibia; coupling a ligament link to one of the femur or the tibia; coupling the ligament link to a coupling component of one of the femoral component or the tibial component; arranging the ligament link in a first position relative to the tibial component when the prosthetic knee joint assembly is implanted in a left knee; and arranging the ligament link in a second position relative to the tibial component when the prosthetic knee joint assembly is implanted in a right knee, the second position is different from the first position.

Claims

1. A method of implanting a prosthetic knee joint assembly comprising:

coupling a femoral component to a femur, and coupling a tibial component to a tibia;

coupling a ligament link to the tibia;

coupling the ligament link to a coupling component attached to the femoral component;

arranging the ligament link in a first position relative to the tibial component when the prosthetic knee joint assembly is implanted in a left knee, the first position corresponding to a first location located on a first side of a medial plane of the tibial component;

arranging the ligament link in a second position relative to the tibial component when the prosthetic knee joint assembly is implanted in a right knee, the second position is different from the first position, the second position corresponding to a second location located on a second side of the medial plane of the tibial component opposite the first side; and

wherein the ligament link extends in a first direction towards the femoral component when the ligament link is implanted in the left knee, and the ligament link extends in a second direction towards the femoral component away from the first direction when the ligament link is implanted in the right knee.

2. The method of claim 1, further comprising:

arranging the ligament link such that the ligament link extends through a first opening at the first location defined by the tibial component when the ligament link is in the first position and implanted in the left knee, the first opening is spaced apart from a second opening at the second location defined by the tibial component; and

arranging the ligament link such that the ligament link extends through the second opening defined by the tibial component when the ligament link is in the second position and implanted in the right knee.

3. The method of claim 2, further comprising coupling the ligament link directly to the tibia.

4. The method of claim 1, further comprising selecting the ligament link from a plurality of ligament links including an autograft, an allograft, a xenograft, an artificial graft, and combinations thereof.

5. The method of claim 1, further comprising:

coupling the ligament link to the femoral component at an intercondylar opening; and

extending the ligament link through one of two discrete openings in the tibial component at the first and second locations, respectively.

6. The method of claim 1, further comprising positioning the ligament link within a central opening of a tibial bearing component.

7. The method of claim 6, wherein the central opening is configured to surround a first opening in the tibial component for the ligament link being positioned in the first position and a second opening in the tibial component for the ligament link being positioned in the second position.

8. A method of implanting a prosthetic knee joint assembly comprising:

selecting a ligament link for implantation from a plurality of ligament links;

engaging a femoral component to a femur, and engaging a tibial tray to a tibia;

intraoperatively evaluating whether to operably couple a first end of the selected ligament link to one of the femur or the tibia;

operably coupling the first end of the selected ligament link to the tibia;

extending the selected ligament link through one of a first opening in the tibial tray located on a first side of a medial plane of the tibial tray and a second opening in the tibial tray located on a second side of the medial plane of the tibial tray opposite the first side;

arranging the selected ligament link in a first position or a second position different from the first position based on whether the prosthetic knee joint assembly is being implanted in a right knee or a left knee;

extending the selected ligament link through a central opening of a tibial bearing component supported by the tibial tray; and

operably coupling a second end of the selected ligament link directly to a coupling component attached to the femoral component.

9. The method of claim 8, wherein in the first position the selected ligament link extends in a first direction, and in the second position the selected ligament link extends in a second direction that is different from the first direction.

10. The method of claim 8, wherein operably coupling the second end of the selected ligament link includes coupling the second end of the selected ligament link directly to the coupling component at an intercondylar opening defined by the femoral component.

11. The method of claim 10, wherein the coupling component comprises a rigid rod spanning the intercondylar opening.

12. The method of claim 8, further comprising extending the selected ligament link through the first opening when the prosthetic knee joint assembly is implanted in the left knee, the first opening spaced apart and separate from the second opening.

13. The method of claim 12, further comprising extending the selected ligament link through the second opening on the second side of the tibial tray when the prosthetic knee joint assembly is implanted in the right knee.

14. The method of claim 8, further comprising operably coupling the selected ligament link directly to the femoral component, and coupling the selected ligament link directly to the tibia.

15. The method of claim 8, wherein selecting the ligament link includes selecting between an autograft, an allograft, a xenograft, an artificial graft, and combinations thereof.

16. The method of claim 8, wherein the first opening and the second opening are positioned on opposite sides of a stem extending from the tibialtray.

17. The method of claim 8, wherein the first opening and the second opening extend inferiorly from a superior side of the tibial tray away from a medial plane of the tibial tray at an angle.

18. The method of claim 8, wherein the coupling component is attached to the femoral component in substantially the same location for both the first position and the second position of the ligament link.

19. A method of implanting a prosthetic knee joint assembly comprising:

coupling a femoral component to a femur, and coupling a tibial component to a tibia;

coupling a bearing component to the tibial component, the bearing component having a central opening;

directly coupling a ligament link to one of the femur or the tibia;

directly coupling the ligament link to a coupling component attached to one of the femoral component or the tibial component;

arranging the ligament link in a first position relative to the tibial component when the prosthetic knee joint assembly is implanted in a left knee, in the first position the ligament link originates from a central location of the femoral component and is angled towards a first side of the tibial component through the central opening of the bearing component; and

arranging the ligament link in a second position relative to the tibial component when the prosthetic knee joint assembly is implanted in a right knee, in the second position the ligament link originates from the central location of the femoral component and is angled towards a second side of the tibial component and away from the first side of the tibial component through the central opening of the bearing component.

20. The method of claim 19, further comprising:

arranging the ligament link such that the ligament link extends through a first opening defined by the tibial component when the ligament link is in the first position and implanted in the left knee, the first opening is spaced apart from a second opening defined by the tibial component; and

arranging the ligament link such that the ligament link extends through the second opening defined by the tibial component when the ligament link is in the second position and implanted in the right knee.

21. The method of claim 19, further comprising extending the ligament link through an opening of one of the femoral component or the tibial component.

22. The method of claim 19, wherein the bearing component is a mobile bearing component that is moveably supported by the tibial component.