# US 10,765,534 B2 · Shoulder arthroplasty system method with combination humeral sizer, trial, and guide

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- Number: US 10,765,534 B2
- Document ID: US10765534B2
- Status: Granted
- Kind: B2
- Application number: 16/008,934
- Filed: 2018-06-14
- Published: 2018-10-18
- Granted: 2020-09-08
- Earliest claimed: 2015-07-23
- Assignees: DePuy Synthes Products, Inc.
- Applicants: DePuy Synthes Products, Inc.
- Inventors: Patrick McElhaney, Jr.
- Web page: https://patentgrep.com/patent/US10765534B2

## CPC

- A61F 2/4684: {Trial or dummy prostheses}
- A61F 2/4003: {Replacing only the epiphyseal or metaphyseal parts of the humerus, i.e. endoprosthesis not comprising an entire humeral shaft (replacing only the epiphyseal or metaphyseal parts of the femur A61F2/3601)}
- A61F 2/4014: {Humeral heads or necks; Connections of endoprosthetic heads or necks to endoprosthetic humeral shafts}
- A61F 2/40: for shoulders
- A61F 2002/30604: {modular}
- A61F 2002/30616: {Sets comprising a plurality of prosthetic parts of different sizes or orientations}
- A61F 2002/3085: {with a threaded, e.g. self-tapping, bone-engaging surface, e.g. external surface}
- A61F 2002/4007: {implanted without ablation of the whole natural humeral head}
- A61F 2002/4018: {Heads or epiphyseal parts of humerus}
- A61F 2002/4051: {Connections of heads directly to shafts}
- A61F 2002/4677: {using a guide wire}
- 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 method of implanting a humeral component includes accessing a humerus and resecting a head portion of the humerus to form a resected surface. The method further includes selecting a first combination sizer and guide device having an outer surface sized complementary to a desired implant head size, positioning the selected first combination sizer and guide device on the resected surface, guiding placement of a guide pin in the humerus with the first combination sizer and guide device, guiding a reamer with the placed guide pin to form a reamed cavity in the humerus, positioning an anchoring portion of a humeral implant base portion in the reamed cavity, positioning the first combination sizer and guide device on the base portion, removing the first combination sizer and guide device from the base portion, and positioning an implant head on the base portion.

## Claims

### Claim 1

A method of implanting a humeral component comprising:
accessing a humerus;
resecting a head portion of the humerus to form a resected surface;
selecting a first combination sizer and guide device having an outer surface sized complementary to a desired implant head size;
positioning the selected first combination sizer and guide device on the resected surface;
guiding placement of a guide pin in the humerus with the first combination sizer and guide device positioned on the resected bone;
guiding a reamer with the placed guide pin to form a reamed cavity in the humerus;
positioning an anchoring portion of a humeral implant base portion in the reamed cavity;
positioning the first combination sizer and guide device on the positioned base portion;
removing the first combination sizer and guide device from the positioned base portion; and
positioning an implant head on the positioned base portion.

### Claim 2 (depends on 1)

The method of claim 1, wherein selecting the first combination sizer and guide device comprises:
selecting the first combination sizer and guide device from a group of differently sized sizer and guide combination devices.

### Claim 3 (depends on 2)

The method of claim 2, wherein positioning the anchoring portion comprises:
guiding the anchoring portion with the guide pin.

### Claim 4 (depends on 1)

The method of claim 1, further comprising:
performing a trial reduction with the first combination sizer and guide device positioned on the positioned base portion.

### Claim 5 (depends on 4)

The method of claim 4, further comprising:
selecting the implant head from a group of differently sized implant heads based upon the trial reduction.

### Claim 6 (depends on 1)

The method of claim 1, wherein positioning the first combination sizer and guide device on the positioned base portion comprises:
inserting a taper-lock mounting portion of the positioned base portion in a non-taper-lock cavity of the first combination sizer and guide device.

### Claim 7 (depends on 1)

The method of claim 1, further comprising:
threadedly engaging the humerus with a threaded portion of the base portion; and
guiding the base portion with the placed guide pin while threadedly engaging the humerus with the threaded portion of the base portion.