IP Library Granted Patent US 9,907,561
Granted Patent B2
US 9,907,561 · App. 14/446,921 · Granted Mar 6, 2018

Ankle replacement system and method

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Quick Facts
Patent No.
US 9,907,561
App. No.
14/446,921
Granted
Mar 6, 2018
Kind
B2
Abstract

Surgical methods for multi-component ankle prosthesis are provided that include use of a guide arm, a ratchet arm frame configured to be coupled slidably to the guide arm, a ratchet arm configured to be coupled to the ratchet arm frame, and a sagittal sizing guide body configured to be coupled to the ratchet arm. Methods including a sagittal sizing guide body include positioning a first radiopaque object at a first position and a second radiopaque object located at a second position that is spaced apart from the first position.

Claims (74)

1. A method, comprising:

inserting an elongate body of a spacer into a channel defined by a trial comprising a patient-specific adapter that is positioned within a resected first bone;

inserting first and second pins through first and second holes defined by an extension of the spacer that extends superiorly from the elongate body;

removing the spacer and the trial while leaving the first and second pins positioned within the second bone; and

sliding a cutting guide over the first and second pins.

2. The method of claim 1 , wherein the first and second pins are received within a first subset of a plurality of holes defined by the cutting guide or a second subset of the plurality of pins defined by the cutting guide.

3. The method of claim 2 , wherein the first subset of holes is positioned at a first distance from a slot defined by the cutting guide, and the second subset of holes is positioned at a second distance from the slot that is different from the first distance.

4. The method of claim 2 , further comprising resecting the second bone by inserting a cutting instrument in a slot defined by the cutting guide to resect the second bone.

5. The method of claim 1 , wherein the first bone is a tibia and the second bone is a talus.

6. A method, comprising:

inserting a floating trial into a resected joint space between a first bone and a second bone;

inserting a poly trial insert into the resected joint space, the poly trial insert comprising a concave surface, wherein the floating trial is sized and configured to articulate with the concave surface of the poly insert;

moving the floating trial to a location corresponding to a desired articulation of the floating trial with the poly trial insert;

inserting a plurality of fixation pins through a plurality of pin holes defined by the floating trial;

removing the floating trial and the poly trial insert from the resected joint space; and

forming at least two resectioning cuts on the second bone.

7. The method of claim 6 , further comprising coupling a resection guide to the plurality of fixation pins, wherein the resection guide defines at least two slots for guiding a surgical tool to form the at least two resectioning cuts.

8. The method of claim 6 further comprising:

reinserting the floating trial into the resected joint space;

reinserting the poly trial insert into the resected joint space; and

performing a trial reduction to establish a desired positioning.

9. The method of claim 8 , further comprising:

coupling a peg drill guide to the resected joint space;

forming a plurality of peg holes using the peg drill guide; and

removing the peg drill guide, floating trial, and poly trial insert from the resected joint space.

10. The method of claim 9 , further comprising:

inserting a first bone implant into the resected joint space;

coupling the first bone implant to the first bone;

inserting a second bone implant into the resected joint space;

coupling the second bone implant to the second bone; and

inserting a poly implant between the first bone implant and the second bone implant.

11. The method of claim 10 , wherein the first bone comprises a tibia and the second bone comprises a talus.

12. The method of claim 6 , further comprising:

prior to inserting the floating trial, coupling a plurality of guide pins to the bone, the plurality of guide pins coupled to the bone using a patient-specific adapter; and

coupling the floating trial to the plurality of guide pins.

13. A method, comprising:

coupling a drill guide to a first bone, wherein the drill guide comprises a plurality of guide holes;

forming a plurality of pilot holes in the first bone through the plurality of guide holes of the drill guide, wherein the pilot holes define proximal corners of a resection cut to be made in the first bone;

removing the drill guide from the first bone;

coupling a cutting guide to the first bone, wherein the cutting guide defines at least two slots for guiding a surgical tool to form one or more resectioning cuts;

cutting the one or more resectioning cuts to form a resectioned joint space between the first bone and a second bone;

inserting a first trial into the resectioned joint space, wherein the first trial is seated flush against the first bone, and wherein the first trial is removably coupled to the first bone; and

performing a trial reduction to determine a height and a position of one or more implants.

14. The method of claim 13 , wherein performing a trial reduction comprises:

inserting a poly trial insert into the resected joint space;

inserting a floating trial into the resected joint space, wherein the floating trial is sized and configured to articulate with the concave surface of the poly trial insert; and

determining an implant coordinate, wherein the implant coordinate is determined by moving the floating trial to a location corresponding to a desired articulation with the concave surface.

15. The method of claim 13 further comprising:

removing the floating trial and the poly trial insert from the resectioned joint section; and

forming at least two additional resection cuts in the second bone.

16. The method of claim 15 , wherein forming the at least two additional resection cuts comprises:

coupling a resection guide to the second bone, wherein the resection guide is configured to guide the surgical tool to cut the at least two additional resection cuts;

cutting the at least two additional resection cuts using the surgical tool.

17. The method of claim 15 , further comprising:

reinserting the first trial into the resectioned joint space;

performing a trial reduction to establish a desired positioning for at least one insert.

18. The method of claim 17 , further comprising:

inserting a first bone implant into the resected joint space;

coupling the first bone implant to the first bone;

inserting a second bone implant into the resected joint space;

coupling the second bone implant to the second bone; and

inserting a poly implant between the first bone implant and the second bone implant.

19. The method of claim 18 , wherein the first bone comprises a tibia, the first bone implant comprises a tibial implant, the second bone comprises a talus, and the second bone implant comprises a talar dome.

20. The method of claim 13 , further comprising, prior to coupling the drill guide to the first bone:

coupling a patient-specific adapter to the first bone, the patient specific adapter comprising a body defining a plurality of guide pin holes;

inserting a plurality of guide pins into the plurality of guide pin holes;

coupling the plurality of guide pins to the first bone, wherein the guide pins are configured to couple to the drill guide, the cut guide, and the first trial; and

removing the patient-specific adapter from the first bone.

21. A method, comprising:

coupling a plurality of guide pins to a first bone, the plurality of guide pins coupled to the first bone using a patient-specific adapter;

coupling a floating trial to the plurality of guide pins

inserting the floating trial into a resected joint space between the first bone and a second bone;

inserting a poly trial insert into the resected joint space, the poly trial insert comprising a concave surface, wherein the floating trial is sized and configured to articulate with the concave surface of the poly insert; and

moving the floating trial to a location corresponding to a desired articulation of the floating trial with the poly trial insert.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 21, 2021
From: LUNA, RAMON; PENNER, MURRAY
To: WRIGHT MEDICAL TECHNOLOGY, INC.
Reel/Frame 058447/0431 →
RELEASE OF SECURITY INTEREST Recorded Nov 19, 2020
From: MIDCAP FUNDING IV TRUST
To: SOLANA SURGICAL, LLC; ORTHOPRO, L.L.C.; WRIGHT MEDICAL GROUP N.V.; WRIGHT MEDICAL GROUP, INC.; BIOMIMETIC THERAPEUTICS CANADA, INC.; BIOMIMETIC THERAPEUTICS, LLC; BIOMIMETIC THERAPEUTICS USA, INC.; INBONE TECHNOLOGIES, INC.; ORTHOHELIX SURGICAL DESIGNS, INC.; TORNIER US HOLDINGS, INC.; TORNIER, INC.; TROOPER HOLDINGS INC.; WHITE BOX ORTHOPEDICS, LLC; WRIGHT MEDICAL CAPITAL, INC.; WRIGHT MEDICAL TECHNOLOGY, INC.; WRIGHT MEDICAL GROUP INTELLECTUAL PROPERTY, INC.
Reel/Frame 054480/0001 →
SECURITY INTEREST Recorded Jan 5, 2017
From: WRIGHT MEDICAL TECHNOLOGY, INC.
To: MIDCAP FINANCIAL TRUST, AS AGENT
Reel/Frame 041257/0126 →