Method for repairing bone defects

Patent metadata

Field	Value
Publication number	US-9693786-B2
Application number	US-201414524473-A
Country	US
Kind code	B2
Filing date	Oct 27, 2014
Priority date	Jun 27, 2011
Publication date	Jul 4, 2017
Grant date	Jul 4, 2017

Abstract

A method for repairing a soft tissue or bone defect can include selecting one of a plurality of sizing guides having a base perimeter size corresponding to a size of the defect, where each base has a different perimeter size and a plurality of apertures spaced apart a predetermined distance from each other, with the predetermined distance being the same for each of the sizing guides. The selected sizing guide base can be positioned against a distal end of the femur relative to the defect. A plurality of guide wires can be positioned through the plurality of apertures in the sizing guide base and the guide wires can be fixed to the femur such that the guide wires are parallel to each other. A first guide can be positioned over the guide wires and against the distal end of the femur to guide a first cutting member relative to the femur.

First claim

What is claimed is:

1. A method for repairing a soft tissue or bone defect, comprising:
positioning a C-shaped guide member around a condyle area of a femur of a patient, the C-shaped guide member having a first end with a threaded bore and a second end;
resting the second end of the C-shaped guide member on a tibia of the patient;
threadably advancing a cannulated bullet through the threaded bore of the C-shaped guide member to engage the femur and secure the C-shaped guide member;
inserting a drilling member having a distal end through the cannulated bullet;
rotating the drilling member until the distal end of the drilling member engages the second end of the C-shaped guide member to drill a femoral bore in the femur;
removing the drilling member from the cannulated bullet;
removing the cannulated bullet from the C-shaped guide member;
removing the C-shaped guide member from the femur;
slidably inserting a drive shaft through the femoral bore until a threaded distal end of the drive shaft reaches a joint space between the femur and the tibia of the patient;
threadably engaging a cutter to the threaded distal end of the drive shaft after slidably inserting the drive shaft through the femoral bore; and
rotating the drive shaft to form a pocket in the tibia using the cutter.

2. The method of claim 1 , further comprising:
positioning a trial bearing in the pocket; and
determining a depth of the pocket.

3. The method of claim 2 , further comprising implanting a tibial adjustment screw in the pocket.

4. The method of claim 3 , further comprising implanting a tibial bearing in the pocket of the tibia relative to the tibial adjustment screw.

5. The method of claim 4 , further comprising selecting the cutter corresponding to a size of a defect in an articular surface of the tibia and selecting a tibial bearing having a size corresponding to the selected cutter.

6. The method of claim 5 , further comprising impacting the tibial bearing into the pocket using a tibial impactor.

7. The method of claim 6 , further comprising forming a pocket in a distal end of the femur and implanting a femoral implant in the pocket in the femur to articulate with the tibial hearing.

8. A method for repairing a soft tissue or bone detect, comprising:
positioning a knee joint having a femur and a tibia in flexion;
positioning a guide member around a distal end of the femur with an end of the guide member in the joint space of the knee joint;
guiding a drilling member with the guide member to drill a femoral bore to the joint space;
removing the drilling member from the femoral bore; and
forming a tibial pocket in the tibia through the femoral bore,
wherein forming the tibia pocket in the tibia includes:
inserting a drive shaft through the femoral bore until a distal end of the drive shaft reaches the joint space between the femur and the tibia;
connecting a cutter to the distal end of the drive shaft after inserting the drive shaft through the femoral bore; and
rotating the drive shaft to form the pocket in the tibia using the cutter.

9. The method of claim 8 , further comprising passing a cannulated bullet through a first end of the guide member to engage the femur and secure the guide member with a second end of the guide member in the joint space of the knee.

10. The method of claim 9 , further comprising threadably advancing the cannulated bullet through a threaded bore on the first end of the guide member.

11. The method of claim 10 , further comprising inserting the drilling member through the cannulated bullet and rotating the drilling member until a distal end of the drilling member engages the second end of the guide member in the joint space.

12. The method of claim 8 , further comprising selecting an appropriate size for the cutter to remove the defect in the bone.

13. The method of claim 12 , further comprising implanting a tibial bearing into the tibial pocket having a size selected to accommodate the size of the cutter.

14. The method of claim 13 , further comprising forming a pocket in a distal end of the femur and implanting a femoral implant in the pocket in the femur to articulate with the tibial bearing.

15. A method for repairing a soft tissue or bone detect, comprising:
positioning a knee joint having a femur and a tibia in flexion;
positioning a C-shaped guide member having a first end and a second end around a distal end of the femur;
resting the second end of the C-shaped guide member on the tibia in a joint space of the knee joint;
advancing a cannulated bullet through the first end of the C-shaped guide member to engage the femur and secure the C-shaped guide member;
inserting a drilling member having a distal end through the cannulated bullet;
driving the drilling member through the femur to drill a femoral bore until the distal end of the drilling member engages the second end of the C-shaped guide member;
removing the drilling member from the cannulated bullet;
inserting a drive shaft through the femoral bore until a distal end of the drive shaft reaches the joint space between the femur and the tibia;
coupling a rotatable cutter to the distal end of the drive shaft after inserting the drive shaft through the femoral bore; and
rotating the drive shaft to form a tibial pocket in the tibia using the rotating cutter.

16. The method of claim 15 , wherein coupling the rotatable cutter to the distal end of the drive shaft includes threadably engaging the cutter to a threaded portion of the distal end of the drive shaft to couple the rotatable cutter to the drive shaft.

17. The method of claim 1 , wherein the cutter includes a body defining a central hub and a plurality of cutting members extending radially outward from the hub to an annular ring.

18. The method of claim 1 , wherein threadably engaging the cutter includes engaging the threaded distal end of the drive shaft with a threaded portion of the cutter located within a central bore defined by a central hub of the cutter.

Assignees

• Biomet Sports Medicine Llc

Inventors

• Berelsman Brian K
• Maxson William
• Robert Paul

Classifications

• A61B17/8875

  Screwdrivers, spanners or wrenches · CPC title

• A61F2/4684

  Trial or dummy prostheses · CPC title

• A61B17/1615

  Drill bits, i.e. rotating tools extending from a handpiece to contact the worked material · CPC title

• A61B17/1604

  Chisels; Rongeurs; Punches; Stamps · CPC title

• A61F2/30756

  Cartilage endoprostheses (A61F2/3603 takes precedence) · CPC title