Patient-specific glenoid guide with a reusable guide holder

Patent metadata

Field	Value
Publication number	US-11617591-B2
Application number	US-201916563279-A
Country	US
Kind code	B2
Filing date	Sep 6, 2019
Priority date	Mar 11, 2013
Publication date	Apr 4, 2023
Grant date	Apr 4, 2023

Abstract

A glenoid device for preparing a shoulder joint of a patient includes a reusable guide holder having a body between an upper surface and a lower surface and a bore passing through the body of the guide holder. The glenoid device also includes a patient-specific glenoid guide having a body with an upper and lower surface. The lower surface of the patient-specific glenoid guide is configured as a negative surface of a glenoid face based on preoperative image scans of the shoulder joint of the patient. The upper face of the patient-specific glenoid guide is configured to be coupled and contact the lower face of the guide holder, such that the bore of the guide holder is aligned along a patient-specific bore through the body of the patient-specific glenoid guide and along a corresponding alignment axis of the patient-specific glenoid guide.

First claim

What is claimed is:

1. A method of preparing a shoulder joint of a patient for arthroplasty comprising:
attaching a reusable non-custom guide holder to a patient-specific glenoid guide having a patient-specific lower surface configured to nestingly mate and conform to a corresponding surface of a glenoid face of the patient based on a three-dimensional image of a shoulder joint of the patient reconstructed preoperatively from image scans of the shoulder joint of the patient;
mating the patient-specific lower surface on the glenoid face;
passing a guiding pin through a bore of the guide holder and through a bore of the patient-specific glenoid guide along a patient-specific alignment orientation of the shoulder joint of the patient;
inserting the guiding pin into the glenoid face;
removing the guide holder and the patient-specific glenoid guide without removing the guiding pin; and
using the guiding pin to prepare the shoulder joint for arthroplasty.

2. The method of claim 1 , further comprising verifying anatomic or reverse arthroplasty by viewing a boss of the patient-specific glenoid guide through one of two windows of the guide holder that are correspondingly marked to indicate anatomic and reverse arthroplasty.

3. The method of claim 1 , further comprising guiding a reamer with the guiding pin to ream the glenoid face.

4. The method of claim 1 , wherein passing the guiding pin through the bore of the guide holder comprises passing the guiding pin through an elongate tubular element of the guide holder.

5. The method of claim 4 , wherein removing the guide holder and the patient-specific glenoid guide comprises removing the elongate tubular element from the guide holder.

6. The method of claim 1 , further comprising pushing the guide holder against the glenoid face of the patient using a handle shaft extending from the guide holder away from the patient-specific lower surface.

7. The method of claim 6 , wherein the handle shaft comprises an elongate projection defining a major axis extending along a largest dimension of the handle shaft, the handle shaft configured to extend perpendicularly away from the glenoid face when the guide holder is engaged with the glenoid face.

8. The method of claim 6 , wherein removing the guide holder and the patient-specific glenoid guide without removing the guiding pin comprises removing the handle shaft from the guide holder.

9. The method of claim 1 , wherein attaching the reusable non-custom guide holder to the patient-specific glenoid guide comprises inserting a protuberance of the guide holder into an orifice of the glenoid guide.

10. The method of claim 1 , wherein attaching the reusable non-custom guide holder to the patient-specific glenoid guide comprises aligning the bore of the guide holder with the bore of the glenoid guide along a common axis.

11. The method of claim 1 , wherein the patient-specific alignment orientation defines an axis for performing an anatomic shoulder arthroplasty or a reverse shoulder arthroplasty according to a preoperative plan for the specific patient.

12. The method of claim 1 , wherein mating the patient-specific lower surface on the glenoid face comprises engaging portions around a periphery of the patient-specific lower surface with landmarks located along a rim of the glenoid face.

13. The method of claim 1 , wherein the patient-specific glenoid guide further comprises a back surface spaced from the patient-specific lower surface on an opposite side of the glenoid guide and the bore of the patient-specific glenoid guide extends from the back surface to the patient-specific lower surface.

14. The method of claim 1 , further comprising:
separating the reusable non-custom guide holder from the patient-specific glenoid guide;
disposing of the patient-specific glenoid guide; and
saving the reusable non-custom guide holder for use in a subsequent arthroplasty.

15. A method of preparing a shoulder joint of a specific patient for arthroplasty comprising:
coupling a reusable elongate guide tube to a disposable patient-specific glenoid guide such that an axis of the elongate guide tube aligns with a patient-specific bore in the patient specific glenoid guide for the specific patient;
engaging a patient-specific lower surface of the patient-specific glenoid guide with a glenoid face of the specific patient, the patient-specific lower surface configured to nestingly mate and conform to a corresponding surface of the glenoid face of the specific patient based on a three-dimensional image of a shoulder joint of the specific patient reconstructed preoperatively from image scans of the shoulder joint of the specific patient;
inserting a guide pin through the elongate guide tube and the patient-specific bore and into the glenoid face;
removing the reusable elongate guide tube and the patient-specific glenoid guide without removing the guiding pin;
using the guiding pin to prepare the shoulder joint for arthroplasty;
separating the reusable elongate guide tube from the disposable patient-specific glenoid guide;
disposing of the disposable patient-specific glenoid guide; and
saving the reusable elongate guide tube for use in a subsequent arthroplasty.

16. The method of claim 15 , wherein coupling the reusable elongate guide tube to the disposable patient-specific glenoid guide comprises inserting a projection of the reusable elongate guide tube into an orifice in the patient-specific glenoid guide.

17. The method of claim 15 , wherein coupling the reusable elongate guide tube to the disposable patient-specific glenoid guide comprises coupling the reusable elongate guide tube to a non-custom guide holder and mating a lower surface of the non-custom guide holder to a hack surface of the patient-specific glenoid guide.

18. A method of preparing a shoulder joint of a patient for arthroplasty comprising:
coupling a guide holder having a guide bore to a patient-specific glenoid guide having a patient-specific bore to define a guide pin trajectory;
positioning a patient-specific surface of the patient-specific glenoid guide against landmarks of a glenoid to align the guide pin trajectory with an anatomic or reverse shoulder axis of the shoulder joint; and
inserting a guide pin into at least one of the patient-specific bore of the patient-specific glenoid guide and the guide bore of the guide holder located along the guide pin trajectory; and
extending the guide pin into the glenoid.

19. The method of claim 18 , further comprising:
aligning the patient-specific bore of the patient-specific glenoid guide with the guide bore of the guide holder to define the guide pin trajectory; and
inserting the guide pin into both of the patient-specific bore of the patient-specific glenoid guide and the guide bore of the guide holder.

Assignees

• Biomet Mfg Llc

Inventors

• Eash Christopher

Classifications

• A61B2034/108

  Computer aided selection or customisation of medical implants or cutting guides · CPC title

• A61B2017/568

  produced with shape and dimensions specific for an individual patient · CPC title

• A61B17/1778 Primary

  for the shoulder · CPC title