Knee augment
AssigneeSmith & Nephew, Inc.
InventorsAngela Black Mines, Michael Cole
Life of this patent
Estimating the term…
Abstract
A knee prosthesis kit includes an implant and an augment. The implant has a base and a stem extending from the base, and the augment has a base and a conical, cylindrical, or anatomic portion extending from the base. The augment base has at least two openings for receiving fasteners for securing the knee augment to the implant. The portion and the base define a bore for receipt of the implant post. A coupler includes a mating portion for receipt in a bore of an implant post, and a cone-shaped portion extending from the mating portion. A method of providing fixation of knee implants includes securing an augment to an implant and positioning a conical, cylindrical, or anatomic portion of the augment within the intramedullary canal of the tibia or femur.
Claims30
A knee prosthesis kit, comprising:
- an implant including a base and a stem extending from the base;
- and
- an augment including a base and a cone-shaped portion extending from the base, the augment base having at least two openings for receiving fasteners for securing the augment to the implant base, the cone-shaped portion and the augment base defining a bore for receipt of the implant post.
A knee augment, comprising:
- a base having at least two openings for receiving fasteners for securing the knee augment to an implant;
- and
- a cone-shaped portion extending from the base, the cone-shaped portion and the base defining a bore for receipt of a stem of the implant.
A coupler, comprising:
- a mating portion for receipt in a bore of an implant post;
- and
- a cone-shaped portion extending from the mating portion, the cone-shaped portion defining a bore for receipt of an intramedullary rod, a central axis of the bore being offset from a central axis of the mating portion.
A method of providing fixation of knee implants;
- comprising:
- securing an augment to an implant by placing a least two fasteners through openings in the augment and the implant, the augment defining a bore for receipt of a stem of the implant;
- and
- positioning a cone-shaped portion of the augment within the intramedullary canal of the tibia or femur.
Dependencies are inferred from the claim text.