# US 8,465,521 B2 · Method and suture needle construct for cruciate ligament repair

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- Number: US 8,465,521 B2
- Document ID: US8465521B2
- Status: Granted
- Kind: B2
- Application number: 11/546,391
- Filed: 2006-10-12
- Published: 2007-06-14
- Granted: 2013-06-18
- Earliest claimed: 2005-12-14
- Assignees: Arthrex, Inc.
- Applicants: James L. Cook; David O. Shepard; Matthew C. Summitt
- Inventors: James L. Cook; David O. Shepard; Matthew C. Summitt
- Web page: https://patentgrep.com/patent/US8465521B2

## CPC

- A61B 17/06: Needles {; Sutures; Needle-suture combinations}; Holders or packages for needles or suture materials
- A61F 2/0805: {Implements for inserting tendons or ligaments}
- A61B 17/06166: {Sutures (suture materials A61L17/00; manufacture of artificial threads D01D; treatment of threads D06M)}
- A61B 2017/00867: {shape memory effect}
- A61B 2017/06057: {Double-armed sutures, i.e. sutures having a needle attached to each end}
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)
- A61F: FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS (dental prosthetics A61C)

## Abstract

A suture needle construct and method for extracapsular ligament reconstruction in mammals. The joint is first is first explored, and the damaged ligament and meniscus are debrided. The joint capsule is closed and a tunnel is created at the appropriate location in the proximal tibia for tibial fixation. Subsequent to the formation of the tibial tunnel, a suture having a substantially curved needle at one end and a substantially straight needle at the other end is brought in the proximity of the joint. The suture is passed around the lateral fabella using the substantially curved needle, then deep to the patellar ligament using the substantially straight needle, and through the tibial tunnel using the straight needle. The needles are cut off, and the sutures are tensioned over repair site.

## Claims

### Claim 1

A method of extracapsular ligament repair, the method comprising the steps of:
providing a bone tunnel into a bone of a mammal and adjacent a repair site of a capsular joint;
providing a suture/needle construct in the proximity of the capsular joint, the suture/needle construct comprising a suture, a first needle provided at one end of the suture, and a second needle provided at the other end of the suture;
passing the first needle around the capsule of the joint;
subsequently passing the second needle in the vicinity of a ligament of the capsular joint; and
passing the second needle through the bone tunnel.

### Claim 2 (depends on 1)

The method of claim 1, wherein the first needle is a substantially curved needle and wherein the second needle is a substantially linear needle.

### Claim 3 (depends on 1)

The method of claim 1, wherein the bone is tibia and the joint is a knee joint.

### Claim 4 (depends on 1)

The method of claim 1, wherein the bone is a canine tibia and the joint is a canine knee joint.

### Claim 5 (depends on 1)

The method of claim 1, wherein the ligament is the patellar ligament.

### Claim 6 (depends on 1)

The method of claim 1, further comprising the step of cutting off at least one of the first and second needles and further tensioning remaining ends of the suture over the repair site.

### Claim 7 (depends on 1)

The method of claim 1, wherein the suture comprises a single suture strand.

### Claim 8 (depends on 1)

The method of claim 1, wherein the suture comprises a plurality of suture strands.

### Claim 9 (depends on 1)

The method of claim 1, wherein the suture comprises a continuous loop of suture.

### Claim 10

A method of canine CrCL repair, the method comprising the steps of:
drilling a tibial tunnel adjacent a canine CrCL repair site of a knee joint;
providing a suture/needle construct in the proximity of the repair site, the suture/needle construct comprising a suture, a substantially non-linear needle provided at one end of the suture, and a substantially linear needle provided at the other end of the suture;
passing the substantially non-linear needle around the lateral fabella of the knee joint;
subsequently passing the substantially linear needle under the patellar ligament of the knee joint;
passing the substantially linear needle through the tibial tunnel;
cutting off the substantially non-linear needle and the substantially linear needle to obtain at least two free ends of the suture; and
tensioning the at least two free ends of the suture over the repair site.

### Claim 11 (depends on 10)

The method of claim 10, further comprising the step of providing additional sutures to close fascia and skin at the repair site.

### Claim 12 (depends on 10)

The method of claim 10, wherein the suture comprises at least one continuous loop of suture.

### Claim 13 (depends on 10)

The method of claim 10, wherein the suture comprises a single suture strand.

### Claim 14 (depends on 10)

The method of claim 10, wherein the suture comprises a high strength suture.

### Claim 15 (depends on 10)

The method of claim 10, wherein the substantially non-linear needle has a configuration selected from the group consisting of semicircular, arcuate, bend, bowed and curved configuration.