Augmented glenoid with groove

Patent metadata

Field	Value
Publication number	US-2018303619-A1
Application number	US-201715496958-A
Country	US
Kind code	A1
Filing date	Apr 25, 2017
Priority date	Apr 25, 2017
Publication date	Oct 25, 2018
Grant date	—

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

1 . An implant comprising:
a body defining an articular surface and a bone engaging surface opposite the articular surface, the bone engaging surface defining a groove that separates a first section of the bone engaging surface from a 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 has a curved profile.

3 . 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.

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

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

6 . The implant of claim 1 , wherein the first section of the bone engaging surface and the second surface of the bone engaging surface define an angle.

7 . The implant of claim 6 , wherein 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; a first scapula engaging surface opposite the articular surface; and a second scapula engaging surface opposite the articular surface, the first scapula engaging surface and the second scapula engaging surface separated by a curved surface 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 curved surface 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 curved surface into a first portion and a second portion.

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

16 . The glenoid implant of claim 12 , further comprising a porous metal layer located adjacent to at least one of the curved surface, 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 . (canceled)

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

20 . (canceled)

21 . The implant of claim 4 , 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.

22 . The implant of claim 4 , 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.

Assignees

• Biomet Mfg Llc

Inventors

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

Classifications

• A61F2/4081 Primary

  Glenoid components, e.g. cups · CPC title

• A61F2310/00011

  Metals or alloys · CPC title

• A61F2/40

  for shoulders · 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

• A61F2002/30736

  Augments or augmentation pieces, e.g. wedges or blocks for bridging a bone defect · CPC title