Fixation Devices And Prostheses For Soft Tissue Connection To The Same

Patent metadata

Field	Value
Publication number	US-2024082010-A1
Application number	US-202318514281-A
Country	US
Kind code	A1
Filing date	Nov 20, 2023
Priority date	Jul 31, 2018
Publication date	Mar 14, 2024
Grant date	—

Abstract

An orthopedic assembly includes a tibial prosthesis that includes a body that defines an anterior side and a posterior side. The body further incudes a recess in the anterior side of the joint prosthesis and a plurality of openings that extend through the body from the anterior side to the posterior side thereof. At least a first and second opening of the openings are positioned at respective lateral and medial sides of a longitudinal axis of the tibial prosthesis. A modular insert is positioned within the recess of the body such that at least a portion of the modular insert is positioned between the openings of the body. The modular insert is formed separately from the tibial prosthesis and has a porous outer surface to promote tissue ingrowth.

First claim

1 . An orthopedic assembly comprising:
a joint prosthesis; and a filamentary receiving component having an annular portion with an opening therethrough and an elongate portion extending from one side of the annular portion, the opening being centered along a longitudinal axis, wherein the opening is configured to receive a portion of the joint prosthesis therein, and wherein a length of the elongate portion along the longitudinal axis is greater than a length of the annular portion along the longitudinal axis.

2 . The orthopedic assembly of claim 1 , wherein the filamentary receiving component is made from a material including one or more of a synthetic polymer, a bioresorbable fiber, a ceramic, a biological material, and a pharmacological agent such that the filamentary receiving component is configured to attach to soft tissue.

3 . The orthopedic assembly of claim 1 , wherein the portion of the joint prosthesis is received in the opening such that the filamentary receiving component is restrained from withdrawal from the portion in one direction along the longitudinal axis.

4 . The orthopedic assembly of claim 1 , wherein the annular portion flares outwardly along its length in a direction from a free end of the filamentary receiving component toward the elongate portion.

5 . The orthopedic assembly of claim 4 , wherein, when assembled, an inner surface of the annular portion is disposed against a tapered outer surface of the joint prosthesis.

6 . The orthopedic assembly of claim 1 , wherein the length of the elongated portion of the filamentary receiving component extends beyond a proximal end of the joint prosthesis in a direction away from the annular portion, the annular portion being in between the proximal end of the joint prosthesis and a distal end of the joint prosthesis.

7 . The orthopedic assembly of claim 1 , wherein the joint prosthesis is either a humeral or a femoral joint prosthesis including a head, a body and a stem such that when the humeral or the femoral joint prosthesis is received in the filamentary receiving component, the filamentary receiving component is restrained from withdrawal from the filamentary receiving component by the head.

8 . The orthopedic assembly of claim 1 , wherein the joint prosthesis is a proximal tibial prosthesis including a metaphyseal portion and a diaphyseal portion extending from the metaphyseal portion, the metaphyseal portion having an anterior side and a posterior side arranged such that when the proximal tibial prosthesis is received in the filamentary receiving component, the elongate portion extends along the anterior side of the metaphyseal portion.

9 . The orthopedic assembly of claim 8 , further comprising a suture extending through a suture hole of the metaphyseal portion and through the elongated portion of the filamentary receiving component,
wherein the elongated portion of the filamentary receiving component is disposed adjacent to the suture hole extending through the metaphyseal portion.

10 . An orthopedic system comprising:
a first joint prosthesis having a first end configured to engage with a bone and a second end opposite the first end, the second end configured to interface with a second joint prosthesis; and a filamentary receiving component having a first portion and a second portion, the first portion defining a sleeve configured to receive the first joint prosthesis, and the second portion having a length extending from a side of the first portion, the second portion being configured to attach to soft tissue.

11 . The orthopedic assembly of claim 10 , wherein the filamentary receiving component includes a plurality of layers of a mesh material.

12 . The orthopedic assembly of claim 11 , wherein each layer of the plurality of layers is connected to an adjacent layer by at least one seam formed by heat.

13 . The orthopedic assembly of claim 10 , wherein the first joint prosthesis is a femur prosthesis that includes a stem and a head, the stem extending from the head and being configured to be inserted into an intramedullary canal of a femur, and the head having a diameter larger than that of the sleeve.

14 . The orthopedic assembly of claim 13 , wherein the sleeve tapers outwardly in a manner that corresponds with a conically tapered body portion of the femur prosthesis in between the stem and the head such that when assembled, the sleeve bears against the body portion.

15 . The orthopedic assembly of claim 10 , wherein the length of the second portion of the filamentary receiving component is greater than a diameter of the sleeve.

16 . A method of attaching soft tissue to an orthopedic implant comprising:
inserting a first segment of a prosthesis into an opening defined by an annular sidewall of a filamentary receiving component until the annular sidewall abuts a second segment of the prosthesis that extends from the first segment, the prosthesis having a length extending from a leading end on the first segment to a trailing end on the second segment; engaging the first segment of the prosthesis to a bone; and attaching an appendage portion of the filamentary receiving component that extends from the annular sidewall to soft tissue, wherein when the first segment is disposed through the opening of the filamentary receiving component, the appendage portion of the filamentary receiving component partially surrounds the second segment of the prosthesis and extends beyond the trailing end of the prosthesis.

17 . The method of claim 16 , wherein attaching the appendage portion to soft tissue includes threading a suture through one or more suture holes in the prosthesis and through the appendage portion of the filamentary receiving component.

18 . The method of claim 17 , wherein attaching the appendage portion to soft tissue includes sewing an anterior side of the appendage portion to a first type of soft tissue and a posterior side of the appendage portion to a second type of soft tissue.

19 . The method of claim 16 , further comprising operatively engaging the second segment of the prosthesis to a complementary second prosthesis to form a ball-and-socket joint replacement assembly.

20 . The method of claim 16 , wherein engaging the first segment of the prosthesis to the bone further comprises inserting a stem of the first segment of the prosthesis into an intramedullary canal of the bone.

Assignees

• Howmedica Osteonics Corp

Inventors

• Servidio Damon J
• Letson G Douglas
• Hanssen Arlen Dale
• Mcgovern Michael A
• Grunden Jennifer

Classifications

• A61F2/389 Primary

  Tibial components (A61F2/3868 takes precedence) · CPC title

• A61F2/30771

  applied in original prostheses, e.g. holes or grooves · CPC title

• A61F2/30907

  Nets or sleeves applied to surface of prostheses or in cement · CPC title

• A61F2/0811

  Fixation devices for tendons or ligaments · CPC title

• A61F2002/30385

  the rib and groove having non-parallel, e.g. conically-tapered, cooperating sides, e.g. having a trapezoidal front cross-section · CPC title