Systems for distal radius fixation

• US 20050085818A1
• Filed: 10/18/2004
• Published: 04/21/2005
• Est. Priority Date: 10/17/2003
• Status: Abandoned Application

• Current Assignee: Acumed Llc (Berkshire Hathaway Incorporated)
• Original Assignee: Acumed Llc (Berkshire Hathaway Incorporated)
• Inventors: Huebner, Randall J.
• Application Number:
  US10/968,850
• Publication Number:
  US 20050085818A1
• Time in Patent Office: Days
• US Class Current: 606/281
• CPC Class Codes: A61B 17/1728 for holes for bone plates or plate screws
• CPC Class Codes: A61B 17/1782 for the hand or wrist
• CPC Class Codes: A61B 17/8009 the plate having a ratchet
• CPC Class Codes: A61B 17/8057 the interlocking form comprising a thread
• CPC Class Codes: A61B 17/8061 specially adapted for particular bones A61B17/70 and A61B17/74 take precedence
• CPC Class Codes: A61B 17/8085 with pliable or malleable elements or having a mesh-like structure, e.g. small strips A61B17/8071, A61B17/8076 take precedence
• CPC Class Codes: A61B 2090/061 for measuring dimensions, e.g. length
• CPC Class Codes: A61B 2090/067 for measuring angles

Abstract

Systems, including methods, apparatus, and kits, for fixing the distal radius with bone plates.

Claims

1. A bone plate for fixation of distal radius fractures, comprising:

a plate member including a proximal portion and a distal portion and having a plurality of apertures, the proximal portion and distal portion being configured to be secured to a distal surface region of a radius bone adjacent opposing sides of a fracture in the radius bone using fasteners received in the plurality of apertures, the proximal portion including a locking aperture configured to receive a fastener that locks to the proximal portion such that the fastener extends at an angular offset from orthogonal to the proximal portion.

2. The bone plate of claim 1, wherein the proximal portion has an inner surface configured to face the radius bone, wherein a region of the inner surface is disposed adjacent the locking aperture, and wherein orthogonal to the proximal portion is defined as orthogonal to a plane tangential to the region of the inner surface.

3. The bone plate of claim 1, the locking aperture being a first aperture having a thread, wherein the proximal portion includes a second aperture having a thread and being disposed more proximally than the first aperture.

4. The bone plate of claim 3, the fastener being a first fastener, wherein the second aperture is configured to receive a second fastener threadably, such that the second fastener extends at least substantially orthogonal to the proximal portion.

5. The bone plate of claim 1, wherein the proximal portion has a proximal end and a length measured from the proximal end to the distal portion of the plate member, and wherein the locking aperture is spaced from the proximal end of the proximal portion by at least about one-half of the length of the proximal portion.

6. The bone plate of claim 1, the proximal portion defining a long axis, wherein the angular offset corresponds to rotation of the fastener about an axis substantially parallel to the long axis.

7. The bone plate of claim 1, wherein the proximal portion includes two or more locking apertures each configured to receive a fastener that locks to the proximal portion such that each fastener extends at an angular offset from orthogonal to the proximal portion.

8. The bone plate of claim 7, wherein at least a pair of the two or more locking apertures are offset in opposing rotational directions.

9. The bone plate of claim 1, wherein the proximal portion includes at least one aperture that is nonthreaded.

10. The bone plate of claim 1, wherein the plate member is configured to be secured to a volar surface region of the radius bone.

11. The bone plate of claim 1, wherein the distal portion of the plate member is wider than the proximal portion.

12. The bone plate of claim 1, wherein the plate member has a unitary structure.

13. A bone plate for fixation of distal radius fractures, comprising:

a plate member configured to fix a radius bone and having a plurality of apertures configured to receive fasteners that secure the plate member to a distal region of the radius bone, the plate member including a proximal portion defining a plane and a distal portion extending out of the plane, the proximal portion including a locking aperture configured to receive a fastener that locks to the plate member such that the fastener extends at an angular offset from orthogonal to the plane.

14. The bone plate of claim 13, wherein the proximal portion includes an inner surface, and wherein the inner surface defines the plane.

15. The bone plate of claim 13, wherein the proximal portion defines a center line, and wherein the angular offset corresponds to rotation about an axis parallel to the center line.

16. The bone plate of claim 13, wherein the locking aperture includes a thread.

17. The bone plate of claim 13, the locking aperture being a first locking aperture, wherein the proximal portion includes a second locking aperture configured to receive a fastener that locks to the plate member.

18. A method of fixing distal radius fractures, comprising:

selecting a bone plate configured to be installed on a distal surface region of a radius bone, the bone plate including a proximal portion and a distal portion;

selecting a radius bone having a fracture disposed distally;

securing the proximal portion and distal portion to the radius bone such that the proximal and distal portions are disposed adjacent opposing sides of the fracture,

wherein securing includes locking a fastener to an aperture of the proximal portion such that the fastener extends at an angular offset from orthogonal to the proximal portion.

19. The method of claim 18, wherein the step of securing installs the bone plate on a volar surface region of the radius bone.

20. The method of claim 18, the fastener being a first fastener and the aperture being a first aperture, wherein the step of securing includes locking a second fastener to a second aperture of the proximal portion, before or after locking the first fastener to the first aperture.