Double bundle ACL repair system

• US 8,535,377 B2
• Filed: 08/30/2011
• Issued: 09/17/2013
• Est. Priority Date: 03/31/2009
• Status: Active Grant

• Current Assignee: IMDS LLC, Thomas H. Myers
• Original Assignee: IMDS Corporation, Thomas H. Myers
• Inventors: Myers, Thomas H., Lorang, Douglas M., Triplett, Daniel J., Lewis, Chad, Howard, Bryan, Hansen, Nathan
• Primary Examiner(s): STEWART, ALVIN J
• Application Number:
  US13/221,723
• Publication Number:
  US 20120059469A1
• Time in Patent Office: 749 Days
• Field of Search: 623 1311- 132, 623/16.11, 623/11.11, 606/232, 606/233, 606/53, 606/60, 606/228, 606/246, 606/99, 606/286, 606/223
• US Class Current: 623/13.14
• CPC Class Codes: A61B 17/0401 Suture anchors, buttons or pledgets, i.e. means for attaching sutures to bone, cartilage or soft tissue; Instruments for applying or removing suture anchors A61B17/0642 takes precedence; fixation devices for tendons or ligaments A61F2/0811
• CPC Class Codes: A61B 17/1604 Chisels; Rongeurs; Punches; Stamps
• CPC Class Codes: A61B 17/1675 for the knee
• CPC Class Codes: A61B 17/1714 for applying tendons or ligaments implements for applying tendons or ligaments A61F2/0805
• CPC Class Codes: A61B 17/1764 for the knee
• CPC Class Codes: A61B 2017/0404 Buttons
• CPC Class Codes: A61B 2017/0409 Instruments for applying suture anchors
• CPC Class Codes: A61B 2017/0414 having a suture-receiving opening, e.g. lateral opening
• CPC Class Codes: A61B 2017/0419 H-fasteners
• CPC Class Codes: A61B 2017/0438 slotted, i.e. having a longitudinal slot for enhancing their elasticity
• CPC Class Codes: A61B 2017/044 with a threaded shaft, e.g. screws
• CPC Class Codes: A61B 2017/0448 Additional elements on or within the anchor
• CPC Class Codes: A61B 2017/0453 threaded elements, e.g. set screws
• CPC Class Codes: A61F 2/0805 Implements for inserting tendons or ligaments
• CPC Class Codes: A61F 2/0811 Fixation devices for tendons or ligaments
• CPC Class Codes: A61F 2002/0852 Fixation of a loop or U-turn, e.g. eyelets, anchor having multiple holes
• CPC Class Codes: A61F 2002/0858 Fixation of tendon or ligament between anchor and bone, e.g. interference screws, wedges
• CPC Class Codes: A61F 2002/0882 Anchor in or on top of a bone tunnel, i.e. a hole running through the entire bone
• CPC Class Codes: A61F 2240/005 Templates
• CPC Class Codes: A61F 2240/008 Means for testing implantable prostheses

Abstract

A system for single tunnel, double bundle anterior cruciate ligament reconstruction includes implant constructs and instruments. The implant constructs provide a combination of cortical fixation and bone tunnel aperture fixation. The implant constructs separate a graft into distinct bundles. The instruments are used to prepare shaped bone tunnels to receive the implant constructs and graft bundles. Methods for reconstructing the antero-medial and postero-lateral bundles of the anterior cruciate ligament may rely on single femoral and tibial tunnels and a single strand of graft.

Claims

1. A system adapted to secure a ligament graft in a tunnel extending between a first opening and an opposite second end having a first longitudinal ridge and an opposite second longitudinal ridge, the system comprising:

a ligament graft having a first portion and a second portion;

a first fixation device securable within the first opening, wherein the first fixation device comprises a first longitudinal groove, an opposite second longitudinal groove, a first longitudinal indentation between the first and second grooves, an opposite second longitudinal indentation, a structural portion, and a non-structural portion coupled to the structural portion;

a second fixation device adapted to be secured in the tunnel proximate the second end; and

a connector linking the first and second fixation devices;

wherein, when the first and second fixation devices are secured in the tunnel, the first graft portion is in the first groove, the second graft portion is in the second groove, the first ridge is in the first indentation, the second ridge is in the second indentation, and the structural portion is coupled to the connector;

and wherein the structural portion comprises a cap;

wherein the non-structural portion comprises a base;

wherein a portion of the first groove is formed in the base and another portion of the first groove is formed in the cap.

2. The system of claim 1, wherein, when the first and second fixation devices are secured in the tunnel, the non-structural portion is between the first and second graft portions.

3. The system of claim 1, wherein the structural portion and the non-structural portion are separate components.

4. The system of claim 1, wherein the first fixation device comprises a porous portion and a non-porous solid portion coupled to the porous portion.

5. The system of claim 4, wherein, when the first and second fixation devices are secured in the tunnel, the solid portion is coupled to the connector and the porous portion is between the first and second graft portions.

6. The system of claim 4, wherein the porous portion and the solid portion are separate components.

7. The system of claim 1, wherein the first fixation device comprises a core and an outer layer over the core.

8. The system of claim 7, wherein, when the first and second fixation devices are secured in the tunnel, the core is coupled to the connector and the outer layer contacts at least a portion of the first or second graft portions.

9. The system of claim 7, wherein the core is solid and the outer layer is porous.

10. The system of claim 1, wherein the first fixation device comprises a central longitudinal hole and a longitudinal slot crossing the hole and extending through the first and second indentations;

wherein the second fixation device comprises a washer;

wherein the connector comprises a screw with a threaded portion and a head opposite the threaded portion;

wherein the screw threads longitudinally into the slot;

wherein the washer encircles the head of the screw.

11. A system adapted to secure a ligament graft in a tunnel extending between a first opening and an opposite second end having a first longitudinal ridge and an opposite second longitudinal ridge, the system comprising:

a ligament graft having a first portion and a second portion;

a first fixation device adapted to be secured within the first opening, wherein the first fixation device comprises a first longitudinal groove, an opposite second longitudinal groove, a first longitudinal indentation between the first and second grooves, an opposite second longitudinal indentation, a porous portion, and a non-porous solid portion coupled to the porous portion;

a second fixation device adapted to be secured in the tunnel proximate the second end; and

a connector linking the first and second fixation devices;

wherein, when the first and second fixation devices are secured in the tunnel, the first graft portion is in the first groove, the second graft portion is in the second groove, the first ridge is in the first indentation, and the second ridge is in the second indentation;

and wherein the first fixation device comprises a central longitudinal hole and a longitudinal slot crossing the hole and extending through the first and second indentations;

wherein the second fixation device comprises a washer;

wherein the connector comprises a screw with a threaded portion and a head opposite the threaded portion;

wherein the screw threads longitudinally into the slot;

wherein the washer encircles the head of the screw.

12. The system of claim 11, wherein, when the first and second fixation devices are secured in the tunnel, the solid portion is coupled to the connector and the porous portion is between the first and second graft portions.

13. The system of claim 11, wherein the porous portion and the solid portion are separate components.

14. The system of claim 11, wherein the first fixation device comprises a core and an outer layer over the core.

15. The system of claim 14, wherein, when the first and second fixation devices are secured in the tunnel, the core is coupled to the connector and the outer layer contacts at least a portion of the first or second graft portions.

16. The system of claim 14, wherein the core is solid and the outer layer is porous.

17. A system adapted to secure a ligament graft in a tunnel extending between a first opening and an opposite second end having a first longitudinal ridge and an opposite second longitudinal ridge, the system comprising:

a ligament graft having a first portion and a second portion;

a first fixation device securable within the first opening, wherein the first fixation device comprises a first longitudinal groove, an opposite second longitudinal groove, a first longitudinal indentation between the first and second grooves, and an opposite second longitudinal indentation;

a second fixation device securable within the tunnel proximate the second end; and

a connector linking the first and second fixation devices;

wherein, when the first and second fixation devices are secured in the tunnel, the first graft portion is in the first groove, the second graft portion is in the second groove, the first ridge is in the first indentation, and the second ridge is in the second indentation;

and wherein the first fixation device comprises a central longitudinal hole and a longitudinal slot crossing the hole and extending through the first and second indentations;

wherein the second fixation device comprises a washer;

wherein the connector comprises a screw with a threaded portion and a head opposite the threaded portion;

wherein the screw threads longitudinally into the slot;

wherein the washer encircles the head of the screw.

18. The system of claim 17, wherein the first fixation device comprises a core and an outer layer over the core.

19. The system of claim 18, wherein, when the first and second fixation devices are secured in the tunnel, the core is coupled to the connector and the outer layer contacts at least a portion of the first or second graft portions.

20. The system of claim 18, wherein the core is solid and the outer layer is porous.

21. A system adapted to secure a ligament graft in a tunnel extending between a first opening and an opposite second end having a first longitudinal ridge and an opposite second longitudinal ridge, the system comprising:

a ligament graft having a first portion and a second portion;

a first fixation device securable within the first opening, wherein the first fixation device comprises a first longitudinal groove, an opposite second longitudinal groove, a first longitudinal indentation between the first and second grooves, an opposite second longitudinal indentation, a structural portion, and a non-structural portion coupled to the structural portion;

a second fixation device securable within the tunnel proximate the second end; and

a connector linking the first and second fixation devices;

wherein, when the first and second fixation devices are secured in the tunnel, the first graft portion is in the first groove, the second graft portion is in the second groove, the first ridge is in the first indentation, the second ridge is in the second indentation, and the structural portion is coupled to the connector;

wherein the first fixation device comprises a central longitudinal hole and a longitudinal slot crossing the hole and extending through the first and second indentations;

wherein the second fixation device comprises a washer;

wherein the connector comprises a screw with a threaded portion and a head opposite the threaded portion;

wherein the screw threads longitudinally into the slot;

wherein the washer encircles the head of the screw.

22. The system of claim 21, wherein, when the first and second fixation devices are secured in the tunnel, the non-structural portion is between the first and second graft portions.

23. The system of claim 21, wherein the structural portion and the non-structural portion are separate components.

24. The system of claim 21, wherein the structural portion comprises a cap;

wherein the non-structural portion comprises a base;

wherein a portion of the first groove is formed in the base and another portion of the first groove is formed in the cap.

25. The system of claim 21, wherein the first fixation device comprises a porous portion and a non-porous solid portion coupled to the porous portion.

26. The system of claim 25, wherein, when the first and second fixation devices are secured in the tunnel, the solid portion is coupled to the connector and the porous portion is between the first and second graft portions.

27. The system of claim 25, wherein the porous portion and the solid portion are separate components.

28. The system of claim 21, wherein the first fixation device comprises a core and an outer layer over the core.

29. The system of claim 28, wherein, when the first and second fixation devices are secured in the tunnel, the core is coupled to the connector and the outer layer contacts at least a portion of the first or second graft portions.

30. The system of claim 28, wherein the core is solid and the outer layer is porous.