Method and apparatus for repairing the mid-foot region via an intramedullary nail

Patent metadata

Field	Value
Publication number	US-9788871-B2
Application number	US-201314030531-A
Country	US
Kind code	B2
Filing date	Sep 18, 2013
Priority date	Aug 10, 2002
Publication date	Oct 17, 2017
Grant date	Oct 17, 2017

Abstract

A device, method, and system for treatment or fixation of a fractured, damaged, or deteriorating bone or bones in a mid-foot region. The device comprising an implant with both proximal and distal fastener holes, along with fastener slots in a central elongated body, for securing the implant to the appropriate osseous cortical structures of the foot. The method for treatment or fixation of fractured, damaged, or deteriorating bones in the medial column of the foot with use of a device such as an intramedullary nail that attaches to either the talus or first metatarsal bones to secure the medial cuneiform and navicular bones in place.

First claim

I claim:

1. A surgical method comprising the steps of:
inserting an intramedullary rod into a plurality of bone portions in a foot such that a longitudinal axis of the intramedullary rod extends within and substantially along a plane parallel to a plane defined by an intersection of a longitudinal axis of a first metatarsal of the foot and a line extending through a medial cuneiform and an intermediate cuneiform of the foot; and
securing the intramedullary rod within the foot with a first fastener.

2. The method of claim 1 , wherein the plurality of bone portions are any of the first metatarsal, the medial cuneiform, a navicular bone, and a talus bone of the foot.

3. The method of claim 2 , wherein the plurality of bone portions are at least the medial cuneiform and the navicular bone of the foot.

4. The method of claim 2 , further comprising the step of aligning an opening extending through the intramedullary rod with any one of the plurality of bone portions.

5. The method of claim 4 , further comprising the step of disposing the first fastener in the opening.

6. The method of claim 5 , wherein the opening is a hole or slot in the intramedullary rod.

7. The method of claim 6 , wherein the disposing step includes threading the first fastener into the hole or slot.

8. The method of claim 1 , further comprising the step of securing the intramedullary rod to the foot with a second fastener.

9. The method of claim 8 , wherein the securing steps include disposing the first fastener through one of the plurality of bone portions and the second fastener through another of the plurality of bone portions.

10. The method of claim 9 , wherein the plurality of bone portions are any of the first metatarsal, the medial cuneiform, a navicular bone, and a talus bone of the foot.

11. The method of claim 1 , further comprising the step of:
inserting a second implant into the foot, the second implant being spaced apart from the first implant, wherein when the first fastener is fully secured in the intramedullary rod, opposing ends of the first fastener extend into and contact the foot.

12. The method of claim 11 , further comprising the step of securing the second implant to the foot with a second fastener.

13. The surgical method of claim 11 , wherein the intramedullary rod is secured to the foot with the first fastener without securing the first fastener to the second implant.

14. The method of claim 1 , further comprising the step of reaming a medullary canal within at least one of the plurality of bone portions.

15. The method of claim 14 , further comprising the step of inserting a guide-wire through at least one of the plurality of bone portions.

16. The method of claim 1 , wherein one of the plurality of bone portions is the first metatarsal, further comprising the step of removing a plug of bone from a head of the first metatarsal.

17. The method of claim 16 , wherein the removing step further comprises removing the plug of bone with a tubular chisel system.

18. The method of claim 1 , further comprising the step of compressing at least two of the plurality of bone portions.

19. The method of claim 18 , further comprising the step of performing a closed reduction of the compressed bones or bone fragments under fluoroscopy.

20. The method of claim 1 , wherein the inserting step further comprises inserting a chamfer extending about a circumference of the intramedullary rod through at least one of the plurality of bone portions.

21. The method of claim 1 , wherein the securing step includes securing the first fastener to any of the plurality of bones.

22. The method of claim 1 , further comprising the steps of:
dislocating a phalanges bone from the first metatarsal of the foot; and
performing an arthrotomy of the first metatarsal.

Assignees

• Howmedica Osteonics Corp

Inventors

• Simon William H

Classifications

• A61B17/72

  Intramedullary devices, e.g. pins or nails · CPC title

• A61B17/7216

  for bone lengthening or compression (A61B17/7258 takes precedence) · CPC title

• A61B2017/681

  Alignment, compression, or distraction mechanisms · CPC title

• A61B17/7225

  for bone compression · CPC title

• A61B17/8897

  Guide wires or guide pins · CPC title