Augmented glenoid with groove

Patent metadata

Field	Value
Publication number	US-11510785-B2
Application number	US-201715496958-A
Country	US
Kind code	B2
Filing date	Apr 25, 2017
Priority date	Apr 25, 2017
Publication date	Nov 29, 2022
Grant date	Nov 29, 2022

Abstract

Disclosed herein is an implant. The implant can include a body and a plurality of fixation members. The body can define an articular surface and a bone engaging surface opposite the articular surface. The bone engaging surface can define a groove that separates a first section of the bone engaging surface from a second section of the bone engaging surface. The plurality of fixation members can extend from the bone engaging surface.

First claim

What is claimed is:

1. A glenoid implant comprising:
a body having an augment defining an articular surface and a bone engaging surface opposite the articular surface,
the bone engaging surface being a distalmost surface of the body,
the bone engaging surface defining only a single groove that has a curved profile and extends entirely across the bone engaging surface,
the groove varying along its length in at least one of width or depth,
the groove separating a first section of the bone engaging surface from a second section of the bone engaging surface,
the first section of the bone engaging surface and the second section of the bone engaging surface defining an angle,
the articular surface and the bone engaging surface being farther apart in the first section of the bone engaging surface than in the second section of the bone engaging surface; and
a plurality of fixation members extending from the bone engaging surface.

2. The implant of claim 1 , wherein the groove follows a curved path defined by an intersection of the first section of the bone engaging surface and the second section of the bone engaging surface.

3. The implant of claim 1 , further comprising a boss extending from the bone engaging surface, the boss dividing the groove that extends entirely across the bone engaging surface into a first portion and a second portion.

4. The implant of claim 3 , wherein the first portion of the groove has a different profile than the second portion of the groove.

5. The implant of claim 3 , the first portion of the groove has a first width and the second portion of the groove has a second width, the first width being greater than the second width.

6. The implant of claim 3 , the first portion of the groove has a first width and the second portion of the groove has a second width, the first width being equal to the second width.

7. The implant of claim 1 , the angle is between about 5 degrees and about 20 degrees.

8. The implant of claim 1 , wherein a first edge defined by an intersection of the first section of the bone engaging surface and the groove includes a first relief and a second edge defined by an intersection of the second section of the bone engaging surface and the groove includes a second relief.

9. The implant of claim 8 , wherein the first relief has a first profile and the second relief has a second profile, the first profile being similar to the second profile.

10. The implant of claim 8 , wherein the first relief has a first profile and the second relief has a second profile, the first profile being different from the second profile.

11. The implant of claim 8 , wherein the first relief and the second relief each have a rounded profile.

12. A glenoid implant comprising:
an articular surface defined by a body of the glenoid implant;
a first scapula engaging surface defined by the body and located opposite the articular surface; and
a second scapula engaging surface defined by the body and located opposite the articular surface,
the first scapula engaging surface and the second scapula engaging surface being distalmost surfaces of the body of the glenoid implant, and defining only a single groove that extends entirely across the first and the second scapula engaging surfaces,
the first scapula engaging surface and the second scapula engaging surface separated by the groove having a curved cross section,
the groove varying along its length in at least one of width or depth,
the groove sized to receive an irregularity defined by a first reamed scapula surface and a second reamed scapula surface.

13. The glenoid implant of claim 12 , wherein the groove follows a curved path separating the first scapula engaging surface and the second scapula engaging surface.

14. The glenoid implant of claim 12 , further comprising a boss extending from a portion of each of the first scapula engaging surface and the second scapula engaging surface, the boss dividing the groove into a first portion and a second portion.

15. The glenoid implant of claim 14 , wherein the first portion of the groove has a different profile than the second portion of the groove.

16. The glenoid implant of claim 12 , further comprising a porous metal layer located adjacent to at least one of the grooves, the first scapula engaging surface, and the second scapula engaging surface.

17. The glenoid implant of claim 12 , wherein the first scapula engaging surface extends along a first plane and the second scapula engaging surface extends along a second plane, the first and second planes intersecting to define an angle.

18. The glenoid implant of claim 12 , wherein a first edge defined by an intersection of the first scapula engaging surface and the groove includes a first relief and a second edge defined by an intersection of the second scapula engaging surface and the groove includes a second relief.

19. A glenoid implant comprising:
a body including an articular surface and a bone engaging surface opposite the articular surface and having a perimeter,
the bone engaging surface being a distalmost surface of the body,
the bone engaging surface defining only a single groove that extends entirely across the bone engaging surface,
the groove varying along its length in at least one of width or depth,
the groove separating a first section of the bone engaging surface from a second section of the bone engaging surface,
the groove having a curved profile and forming a concavity between the first section of the bone engaging surface and the second section of the bone engaging surface,
the first section of the bone engaging surface and the second section of the bone engaging surface defining an angle,
the articular surface and the bone engaging surface being farther apart in the first section of the bone engaging surface than in the second section of the bone engaging surface; and
a plurality of fixation members extending from the bone engaging surface.

Assignees

• Biomet Mfg Llc

Inventors

• Kehres Clinton E
• Kovacs Michael Francis
• Vanasse Thomas Michael

Classifications

• A61F2/30

  Joints · CPC title

• A61F2310/00011

  Metals or alloys · CPC title

• A61F2002/30881

  Circumferential ribs, flanges or fins · CPC title

• A61F2002/30487

  Circumferential cooperating grooves and beads on cooperating lateral surfaces of a mainly longitudinal connection · CPC title

• A61F2002/30878

  with non-sharp protrusions, for instance contacting the bone for anchoring, e.g. keels, pegs, pins, posts, shanks, stems, struts · CPC title