# US 10,945,853 B2 · Glenoid implant and method of use thereof

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- Number: US 10,945,853 B2
- Document ID: US10945853B2
- Status: Granted
- Kind: B2
- Application number: 16/327,923
- Filed: 2017-09-13
- Published: 2019-07-04
- Granted: 2021-03-16
- Earliest claimed: 2016-09-19
- Assignees: Smith & Nephew, Inc.
- Applicants: Smith & Nephew, Inc.
- Inventors: Mason Bettenga; Jeff Wyman; Dirk Wunderle
- Web page: https://patentgrep.com/patent/US10945853B2

## CPC

- A61F 2/4081: {Glenoid components, e.g. cups}
- 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)}
- A61F 2/30734: {Modular inserts, sleeves or augments, e.g. placed on proximal part of stem for fixation purposes or wedges for bridging a bone defect}
- A61F 2/30749: {Fixation appliances for connecting prostheses to the body}
- A61F 2/30771: {applied in original prostheses, e.g. holes or grooves}
- A61F 2/4612: {of shoulders}
- A61B 2017/0404: {Buttons}
- A61F 2002/30011: {differing in porosity}
- A61F 2002/30062: {(bio)absorbable, biodegradable, bioerodable, (bio)resorbable, resorptive}
- A61F 2002/30153: {rectangular}
- A61F 2002/30224: {cylindrical}
- A61F 2002/30561: {breakable or frangible}
- A61F 2002/30601: {telescopic}
- A61F 2002/30733: {Inserts placed into an endoprosthetic cavity, e.g. for modifying a material property}
- A61F 2002/30878: {with non-sharp protrusions, for instance contacting the bone for anchoring, e.g. keels, pegs, pins, posts, shanks, stems, struts}
- A61F 2002/3092: {having an open-celled or open-pored structure}
- A61F 2002/3093: {for promoting ingrowth of bone tissue}
- A61F 2002/30985: {using three dimensional printing [3DP]}
- A61F 2310/00023: Titanium or titanium-based alloys, e.g. Ti-Ni alloys
- A61F 2310/00131: Tantalum or Ta-based alloys
- A61F 2310/00179: Ceramics or ceramic-like structures
- A61F 2310/00293: containing a phosphorus-containing compound, e.g. apatite
- 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)
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)

## Abstract

A glenoid implant that is 3D-printed or machined from ceramic and/or metal as a substitute for an autograft or allograft in a surgical repair. Structural supports composed of metal are designed in the interior of the implant for support during implantation and post-operation. The remainder of the volume of the implant is composed of a material having optimal pore structure for rapid bone integration and healing.

## Claims

### Claim 1

A surgical implant comprising:
a substantially rectangular body having a solid structural support and a porous region surrounding the structural support, the body further having a first surface, a second surface opposite the first surface, and at least two through holes extending through the structural support from the first surface to the second surface;
a cylinder disposed within each of the at least two through holes, the cylinder comprising a telescoping peg configured to allow passage of a suture through the cylinder; and
a breakable connection point between the body and the cylinder, the connection point configured to secure the telescoping peg within the through hole until a force applied to the connection point allows the telescoping peg to extend from the second surface into a mating hole in bone.

### Claim 2 (depends on 1)

The implant of claim 1, wherein the structural support comprises a biocompatible metal.

### Claim 3 (depends on 1)

The implant of claim 1, wherein the structural support comprises one of titanium or tantalum.

### Claim 4 (depends on 1)

The implant of claim 1, wherein the porous region comprises a resorbable ceramic.

### Claim 5 (depends on 1)

The implant of claim 1, wherein the porous region comprises a semi-crystalline bioinductive/bioconductive material.

### Claim 6 (depends on 1)

The implant of claim 1, wherein the porous region comprises one of hydroxyapatite (HA) or tricalcium phosphate (TCP).

### Claim 7 (depends on 1)

The implant of claim 1, wherein at least one surface of the implant is coated with HA or TCP.

### Claim 8 (depends on 1)

The implant of claim 1, wherein the second surface of the body comprises features for improving fixation strength of the body against the bone.

### Claim 9 (depends on 1)

The implant of claim 1, wherein the implant is additive manufactured.

### Claim 10

A method of glenoid instability repair comprising:
forming at least two axially-aligned passages from a first surface to a second surface of a glenoid;
aligning at least two through holes of an implant with the at least two passages in the glenoid, the implant further comprising:
a substantially rectangular body having a solid structural support and a porous region surrounding the structural support, the body further having a first surface, a second surface opposite the first surface, the at least two through holes extending through the structural support from the first surface to the second surface, and a cylinder disposed within each of the at least two through holes, the cylinder comprising a telescoping peg configured to allow passage of a suture through the cylinder;
applying a force to break a connection point between the peg and the implant body, causing the peg to extend from the second surface of the body into one of the at least two passages of the glenoid.

### Claim 11 (depends on 10)

The method of claim 10, further comprising passing a suture attached to a fixation device through at least one of the at least two through holes, such that the fixation device abuts the at least one cylinder and the suture extends through the cylinder and from the at least one passage in the glenoid.

### Claim 12 (depends on 11)

The method of claim 11, wherein applying the force to break the connection point between the peg and the implant body comprises pulling the suture in a direction substantially opposite the fixation device.

### Claim 13 (depends on 10)

The method of claim 10, further comprising passing the implant through an arthroscopic cannula to a repair site including the glenoid.