Bone fixation with a strut-stabilized bone plate

• US 8,231,662 B2
• Filed: 10/17/2006
• Issued: 07/31/2012
• Est. Priority Date: 10/17/2006
• Status: Active Grant

• Current Assignee: Acumed Llc (Berkshire Hathaway Incorporated)
• Original Assignee: Acumed Llc (Berkshire Hathaway Incorporated)
• Inventors: Huebner, Randall J.
• Primary Examiner(s): Barrett, Thomas
• Assistant Examiner(s): GOLOB, MELISSA ANTOINETTE
• Application Number:
  US11/550,255
• Publication Number:
  US 20080161861A1
• Time in Patent Office: 2,114 Days
• Field of Search: 606 70- 71, 606/86.B, 606/101, 606280-299, 606902-906, 606/915
• US Class Current: 606/280
• CPC Class Codes: A61B 17/8004 with means for distracting or compressing the bone or bones
• CPC Class Codes: A61B 17/8033 having indirect contact with screw heads, or having contact with screw heads maintained with the aid of additional components, e.g. nuts, wedges or head covers
• 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 17/8861 Apparatus for manipulating flexible wires or straps devices for inserting Kirschner wires A61B17/1697

Abstract

A system and a method for bone fixation are provided. A bone plate may be secured to at least one bone. A monolithic region of the bone plate may be bent to a bent configuration. A strut may be connected to the bone plate. In some embodiments, the strut may be connected at spaced positions of the bone plate that opposingly flank the monolithic region, such that the bent configuration is stabilized.

Claims

1. A method of bone fixation, comprising:

attaching a bone plate to a bone;

deforming a monolithic region of the bone plate to a deformed configuration after attaching the bone plate to the bone; and

connecting a strut plate to the bone plate with the strut plate spanning the monolithic region, to form an assembly that stabilizes the deformed configuration,

wherein the monolithic region has an inner surface area that faces the bone and that defines an axis substantially centered within and substantially orthogonal to the inner surface area, and wherein a thickness of the strut plate measured along the axis is greater than a thickness of the bone plate measured along the axis in the assembly

wherein a region of the strut plate

overlying the monolithic region in the assembly is separated from the monolithic region along the axis to form a gap between the strut plate and the bone plate.

2. The method of claim 1, wherein the gap has a size measured along the axis, and wherein the size of the gap is greater than the thickness of the bone plate.

3. The method of claim 1, wherein the gap has a size measured along the axis, and wherein the step of deforming determines the size of the gap.

4. The method of claim 1, wherein the monolithic region has an outer surface area opposite the inner surface area and defining a plane, and wherein a complete transverse section of the strut plate taken at the axis does not cross the plane.

5. The method of claim 1, wherein the bone plate and the strut plate each include an engagement structure, wherein the engagement structures of the bone plate and the strut plate are at least generally complementary to one another and fit together in only a finite number of discrete, alternative registers that provide incremental changes in a position of the strut plate with respect to the bone plate, and wherein the step of connecting includes (1) a step of selecting a register for the engagement structures and (2) a step of connecting the strut plate to the bone plate in the register selected.

6. The method of claim 5, wherein the bone plate defines a longitudinal axis, wherein one of the engagement structures includes a plurality of ridges and the other of the engagement structures includes a plurality of grooves, and wherein each ridge and each groove extends perpendicular to the longitudinal axis when the engagement structures fit together in each register.

7. The method of claim 1, wherein the step of deforming is performed with one or more tools disposed in threaded engagement with the bone plate.

8. The method of claim 1, wherein the step of connecting includes a step of disposing at least one fastener in threaded engagement with the bone plate.

9. The method of claim 1, wherein the bone plate is attached to a distal portion of a radial bone.

10. The method of claim 1, wherein the step of connecting includes a step of connecting the strut plate to the bone plate by placing fasteners into at least two pairs of aligned apertures provided by the bone plate and the strut plate.

11. The method of claim 1, wherein the strut plate defines a longitudinal axis, wherein the step of connecting includes a step of placing a fastener through an aperture of the strut plate, and wherein the aperture is elongated substantially parallel to the longitudinal axis.

12. A method of bone fixation, comprising:

attaching a bone plate to a bone;

deforming a monolithic region of the bone plate to a deformed configuration after attaching the bone plate to the bone; and

connecting a strut plate to the bone plate with the strut plate spanning the monolithic region, to form an assembly that stabilizes the deformed configuration,

wherein the monolithic region has an inner surface area that faces the bone and an outer surface area opposite the inner surface area and defining a plane, wherein the outer surface area also defines an axis substantially centered within and substantially orthogonal to the outer surface area, and wherein a complete transverse section of the strut plate taken at the axis is disposed on only one side of the plane,

wherein a region of the strut plate

overlying the monolithic region in the assembly is separated from the monolithic region along the axis to form a gap between the strut plate and the bone plate.

13. The method of claim 12, wherein the gap has a size measured along the axis, and wherein the size of the gap is greater than a thickness of the bone plate measured along the axis.

14. The method of claim 12, wherein the gap has a size measured along the axis, and wherein the step of deforming determines the size of the gap.

15. A method of bone fixation, comprising:

attaching a bone plate to a bone;

deforming a monolithic region of the bone plate to a deformed configuration after attaching the bone plate to the bone; and

connecting a strut plate to the bone plate with the strut plate spanning the monolithic region, to form an assembly that stabilizes the deformed configuration,

wherein the monolithic region has an inner surface area that faces the bone and that defines an axis substantially centered within and substantially orthogonal to the inner surface area, and wherein a region of the strut plate overlying the monolithic region in the assembly is separated from the monolithic region along the axis to form a gap between the strut plate and the bone plate.

16. The method of claim 15, wherein the gap has a size measured along the axis, and wherein the size of the gap is greater than a thickness of the bone plate measured along the axis.

17. The method of claim 15, wherein the gap has a size measured along the axis, and wherein the step of deforming determines the size of the gap.

18. The method of claim 15, wherein the bone plate is attached to a distal portion of a radial bone.