Surgical instruments and method of surgically preparing a patient's tibia

Patent metadata

Field	Value
Publication number	US-9962173-B2
Application number	US-201715445109-A
Country	US
Kind code	B2
Filing date	Feb 28, 2017
Priority date	May 30, 2012
Publication date	May 8, 2018
Grant date	May 8, 2018

Abstract

A method of surgically preparing a proximal end of a tibia includes inserting an intramedullary orthopedic surgical instrument into a medullary canal of the tibia, securing an attachment device to the intramedullary orthopedic surgical instrument, attaching a cutting block to the attachment device, resecting the proximal end of the tibia using the cutting block to form a surgically-prepared surface, positioning a tibial base trial on the surgically-prepared surface, and inserting a keel punch through a slot defined in the tibial base trial and into the surgically-prepared surface of the tibia.

First claim

The invention claimed is:

1. A method of surgically preparing a proximal end of a tibia, the method comprising:
inserting a broach into a medullary canal of the tibia to engage a plurality of cutting teeth of the broach with the tibia,
securing a housing of an attachment device to the broach by inserting a mounting shaft of the attachment device into an opening in the broach to secure the housing of the attachment device to the broach,
sliding a mounting frame along a rail toward the housing,
attaching a cutting block to the mounting frame, the cutting block having a cutting guide defined therein,
resecting the proximal end of the tibia using the cutting guide to form a surgically-prepared surface,
removing the broach from the medullary canal,
positioning a tibial base trial on a tibial sleeve trial,
inserting the tibial sleeve trial into the medullary canal, and
positioning the tibial base trial on the surgically-prepared surface.

2. The method of claim 1 , wherein attaching the cutting block to the mounting frame includes operating a control knob to move a locking tab of the mounting frame into engagement with the cutting block.

3. A method of surgically preparing a proximal end of a tibia, the method comprising:
inserting a broach into a medullary canal of the tibia, the broach including (i) a tapered outer surface and (ii) a plurality of cutting teeth formed on the tapered outer surface,
securing an attachment device to the broach by actuating a lever of the attachment device to engage the lever with a flange of the broach,
attaching a cutting block to the attachment device, the cutting block having a cutting guide defined therein,
resecting the proximal end of the tibia using the cutting guide to form a surgically-prepared surface,
positioning a tibial base trial on the surgically-prepared surface, and
securing the tibial base trial to the broach positioned in the medullary canal.

4. The method of claim 3 , further comprising:
inserting a base insert into an opening defined in the tibial base trial, the base insert including a lug, and
positioning a tibial bearing trial over the lug of the base insert.

5. The method of claim 3 , wherein securing the tibial base trial to the broach includes inserting a post of the tibial base trial into an opening in the broach.

6. The method of claim 3 , further comprising securing a stem trial to the broach before inserting the broach into the medullary canal.

7. The method of claim 3 , wherein securing the attachment device to the broach includes inserting a mounting shaft of the attachment device into an opening in the broach.

8. The method of claim 3 , wherein attaching the cutting block to the attachment device includes operating a control knob to move a locking tab of the attachment device into engagement with the cutting block.

9. The method of claim 3 , further comprising withdrawing a broach insert from a slot defined in the broach and disengaging the cutting teeth of the broach insert from the tibia.

10. The method of claim 3 , further comprising:
positioning a trial component including a bearing surface on the tibial base trial, and
performing a trial reduction with the tibial base trial secured to the broach.

11. The method of claim 1 , further comprising inserting a keel punch through a slot defined in the tibial base trial and into the surgically-prepared surface of the tibia.

12. The method of claim 1 , wherein securing the attachment device to the broach includes actuating a lever of the attachment device to engage the lever with a flange of the broach.

13. The method of claim 1 , wherein sliding a mounting frame along a rail toward the housing includes operating a control knob to move a locking tab of the mounting frame into engagement with the rail.

14. The method of claim 1 , further comprising:
inserting a base insert into an opening defined in the tibial base trial, the base insert including a lug, and
positioning a tibial bearing trial over the lug of the base insert.

15. The method of claim 1 , wherein securing the attachment device to the broach includes actuating a lever of the attachment device to engage the lever with a flange of the broach.

16. A method of surgically preparing a proximal end of a tibia, the method comprising:
inserting a broach into a medullary canal of the tibia to engage a plurality of cutting teeth of the broach with the tibia,
securing a housing of an attachment device to the broach by actuating a lever of the attachment device to engage the lever with a flange of the broach,
sliding a mounting frame along a rail toward the housing,
attaching a cutting block to the mounting frame, the cutting block having a cutting guide defined therein,
resecting the proximal end of the tibia using the cutting guide to form a surgically-prepared surface,
removing the broach from the medullary canal,
positioning a tibial base trial on a tibial sleeve trial,
inserting the tibial sleeve trial into the medullary canal, and
positioning the tibial base trial on the surgically-prepared surface.

17. A method of surgically preparing a proximal end of a tibia, the method comprising:
inserting a broach into a medullary canal of the tibia, the broach including (i) a tapered outer surface and (ii) a plurality of cutting teeth formed on the tapered outer surface,
securing an attachment device to the broach by inserting a mounting shaft of the attachment device into an opening in the broach,
attaching a cutting block to the attachment device, the cutting block having a cutting guide defined therein,
resecting the proximal end of the tibia using the cutting guide to form a surgically-prepared surface,
positioning a tibial base trial on the surgically-prepared surface, and
securing the tibial base trial to the broach positioned in the medullary canal.

Assignees

• Depuy Ireland Ultd Co

Inventors

• Thomas Kyle B
• Kilpela Todd A
• Gowers Steven P
• Keefer Ryan C
• Macumber William R
• Lee Jonathan C
• Robertson Lisa M

Classifications

• A61F2/389

  Tibial components (A61F2/3868 takes precedence) · CPC title

• A61B17/157

  Cutting tibia · CPC title

• A61F2002/30604

  modular · CPC title

• A61B17/164

  intramedullary · CPC title

• A61B17/1675

  for the knee · CPC title