Intra-osseous plate system and method

Patent metadata

Field	Value
Publication number	US-12396771-B2
Application number	US-202418649799-A
Country	US
Kind code	B2
Filing date	Apr 29, 2024
Priority date	May 6, 2015
Publication date	Aug 26, 2025
Grant date	Aug 26, 2025

Abstract

An intra-osseous support structure can be used to fixate opposed portions of bone. In some examples, the intra-osseous support structure is positioned in openings formed in adjacent portions of bones. Fasteners are inserted through the bone portions to secure the intra-osseous support structure in the bones. Depending on the application, one or more external bone plates may also be applied to the bone portions. The external bone plate may be in compression while the intra-osseous support structure is in tension under load in situ.

First claim

The invention claimed is:

1. A method comprising:
performing an osteotomy on a metatarsal to separate the metatarsal into a first metatarsal portion and a second metatarsal portion;
forming an opening in the second metatarsal portion between a dorsal surface and a plantar surface the second metatarsal portion;
forming an opening in the first metatarsal portion between the dorsal surface and the plantar surface of the first metatarsal portion;
placing a first portion of an intra-osseous support structure in the opening in the first metatarsal portion;
placing a second portion of the intra-osseous support structure in the opening in the second metatarsal portion, the second portion comprising a first planar surface, a second planar surface, and an aperture extending through the second portion from the first planar surface to the second planar surface, wherein placing the second portion of the intra-osseous support structure in the opening comprises positioning the aperture facing the dorsal surface of the second metatarsal portion; and
inserting a fastener through the dorsal surface of the second metatarsal portion, through a portion of the second metatarsal portion dorsal of the first planar surface, into the aperture of the second portion of the intra-osseous support structure, and through at least a portion of the second metatarsal portion plantar of the second planar surface.

2. The method of claim 1 , wherein the fastener comprises a screw.

3. The method of claim 2 , wherein the aperture comprises a threaded aperture, and inserting the screw into the aperture comprises inserting the screw into the threaded aperture.

4. The method of claim 1 , wherein inserting the fastener through the portion of the second metatarsal portion plantar of the second planar surface comprises inserting the fastener through a thickness of the second metatarsal portion less than an entire thickness of the second metatarsal portion.

5. The method of claim 4 , wherein the thickness of the second metatarsal portion is within a range from one-half to two-thirds of the entire thickness of the second metatarsal portion.

6. The method of claim 1 , wherein the first portion of the intra-osseous support structure comprises an aperture, and further comprising inserting a second fastener into the aperture in the first portion of the intra-osseous support structure.

7. The method of claim 6 , wherein inserting the second fastener into the aperture in the first portion of the intra-osseous support structure comprises inserting the second fastener through the dorsal surface of the first metatarsal portion.

8. The method of claim 1 , wherein placing the first portion of the intra-osseous support structure in the opening in the first metatarsal portion and placing the second portion of the intra-osseous support structure in the opening in the second metatarsal portion comprises comprises fusing the first metatarsal portion to the second metatarsal portion.

9. The method of claim 1 , wherein the metatarsal is a first metatarsal.

10. The method of claim 1 , further comprising adjusting an alignment of the first metatarsal portion relative to the second metatarsal portion.

11. The method of claim 1 , wherein placing the second portion of the intra-osseous support structure in the opening comprises positioning the aperture facing the dorsal surface of the second metatarsal portion.

12. The method of claim 1 , wherein inserting the fastener through the dorsal surface of the second metatarsal portion and into the aperture in the second portion of the intra-osseous support structure comprises inserting the fastener through the aperture toward the plantar surface the second metatarsal portion.

13. A method comprising:
performing an osteotomy on a metatarsal to separate the metatarsal into a first metatarsal portion and a second metatarsal portion;
placing a first portion of an intra-osseous support structure in the first metatarsal portion between a dorsal surface of the first metatarsal portion and a plantar surface of the first metatarsal portion;
placing a second portion of the intra-osseous support structure in the second metatarsal portion between the dorsal surface of the second metatarsal portion and the plantar surface of the second metatarsal portion, the second portion comprising a first planar surface, a second planar surface, and an aperture extending through the second portion from the first planar surface to the second planar surface, wherein placing the second portion of the intra-osseous support structure in the second metatarsal portion comprises positioning the aperture facing the dorsal surface of the second metatarsal portion; and
inserting a screw through the dorsal surface of the second metatarsal portion, through a portion of the second metatarsal portion dorsal of the first planar surface, into the aperture of the second portion of the intra-osseous support structure, and through at least a portion of the second metatarsal portion plantar of the second planar surface.

14. The method of claim 13 , further comprising forming an opening in the second metatarsal portion between the dorsal surface and the plantar surface the second metatarsal portion.

15. The method of claim 13 , further comprising forming an opening in the first metatarsal portion between the dorsal surface and the plantar surface of the first metatarsal portion.

16. The method of claim 13 , wherein the metatarsal is a first metatarsal.

17. The method of claim 13 , further comprising adjusting an alignment of the first metatarsal portion relative to the second metatarsal portion.

18. The method of claim 13 , wherein placing the second portion of the intra-osseous support structure in the second metatarsal portion comprises positioning the aperture facing the dorsal surface of the second metatarsal portion.

19. The method of claim 13 , wherein inserting the screw through the dorsal surface of the second metatarsal portion and into the aperture in the second portion of the intra-osseous support structure comprises inserting the screw through the aperture toward the plantar surface the second metatarsal portion.

Assignees

• Treace Medical Concepts Inc

Inventors

• Brumfield David L
• Dayton Paul
• Bays F Barry
• Ferguson Joe W

Classifications

• A61B17/0642

  for bones, e.g. for osteosynthesis or connecting tendon to bone · CPC title

• A61B17/8872

  Instruments for putting said fixation devices against or away from the bone (A61B17/7074, A61B17/808 take precedence) · CPC title

• A61B17/86

  Pins or screws {or threaded wires; nuts therefor (A61B17/72 take precedence)} · CPC title

• A61B17/8095

  Wedge osteotomy devices · CPC title

• A61B17/8014

  the extension or compression force being caused by interaction of the plate hole and the screws · CPC title