Knee joint capsular disruption and repair

Patent metadata

Field	Value
Publication number	US-11058408-B2
Application number	US-201816116503-A
Country	US
Kind code	B2
Filing date	Aug 29, 2018
Priority date	May 16, 2016
Publication date	Jul 13, 2021
Grant date	Jul 13, 2021

Abstract

Meniscal extrusion can occur due detachment of the knee capsule from structures of the knee. Disclosed herein are methods to repair the meniscal detachment. Additionally, cadaveric and synthetic models can be used to teach said methods of repair.

First claim

What is claimed is:

1. A method comprising:
disrupting a knee joint capsule from a knee joint structure, wherein the knee joint structure is a cadaveric knee joint structure or a synthetic knee joint structure, by physically elevating an instrument placed between the knee joint capsule and the knee joint structure to force a capsular disruption.

2. The method of claim 1 , wherein the capsular disruption comprises at least one of a tear of coronary fibers of a meniscotibial ligament or a tear of coronary fibers of a meniscofemoral ligament.

3. The method of claim 1 , further comprising:
inserting one or more anchors through the knee joint capsule at the capsular disruption; and securing the knee joint capsule to a knee joint structure to decrease a length of a meniscal extrusion, wherein securing the knee joint capsule to the knee joint structure comprises inserting the one or more anchors into the knee joint structure, wherein a knee joint structure comprises at least one of a tibia, a femur, tibial periosteum, or femoral periosteum.

4. The method of claim 3 , wherein the one or more anchors comprises a suture anchor or a soft tissue anchor.

5. The method of claim 3 , wherein inserting one or more anchors through the knee joint capsule comprises inserting a first anchor and a second anchor.

6. The method of claim 5 , wherein the first anchor is inserted below a knee joint line and at an anterior distal portion of the knee joint capsule, and wherein the second anchor is inserted posterior to the first anchor.

7. The method of claim 5 , wherein the second anchor is inserted through the knee joint capsule within about 2 cm of the first anchor.

8. The method of claim 7 , wherein the second anchor is inserted through the knee joint capsule within about 1 cm to about 1.5 cm of the first anchor.

9. The method of claim 5 , wherein the method further comprises securing sutures from each of the first and second anchors to the opposite anchor.

10. The method of claim 5 , wherein the method further comprises securing the first anchor to the second anchor with a flexible strand.

11. The method of claim 3 , wherein inserting one or more anchors through the knee joint capsule comprises percutaneously inserting the one or more anchors.

12. The method of claim 3 , wherein the method further comprises drilling a hole in a bone for inserting the one or more anchors.

13. The method of claim 3 , further comprising:
visualizing a spinal needle with an arthroscope to identify a location for inserting one or more anchors through the knee joint capsule, wherein the spinal needle is inserted into the knee joint structure.

14. The method of claim 3 , wherein the capsular disruption comprises the tear of coronary fibers of the meniscotibial ligament, and wherein inserting the one or more anchors into the knee joint structure comprises inserting the one or more anchors into the tibia.

Assignees

• Arthrex Inc

Inventors

• Crane David
• Paletta George
• Purcell John
• Osika Andrew
• Harrison Robert

Classifications

• G09B23/34 Primary

  with removable parts · CPC title

• A61B17/0401 Primary

  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 title

• A61B2017/0464

  for soft tissue · CPC title

• A61B17/1764

  for the knee · CPC title

• A61B17/00234

  for minimally invasive surgery (A61B17/0218, A61B17/0469, A61B17/12013, A61B17/1285, A61B17/29, A61B17/320016 take precedence) · CPC title