Femoral tibial customized patient-specific orthopaedic surgical instrumentation

• US 8,398,645 B2
• Filed: 09/29/2008
• Issued: 03/19/2013
• Est. Priority Date: 09/30/2007
• Status: Active Grant

• Current Assignee: DePuy Synthes Products LLC (Johnson & Johnson)
• Original Assignee: DePuy Synthes Products LLC (Johnson & Johnson)
• Inventors: Aker, Chris, Lester, Mark B., Sheeks-Hoffman, Janell, Guzman, Jose F.
• Primary Examiner(s): Truong, Kevin T
• Assistant Examiner(s): SEVILLA, CHRISTIAN ANTHONY
• Application Number:
  US12/240,997
• Publication Number:
  US 20090131942A1
• Time in Patent Office: 1,632 Days
• Field of Search: 606/86.R, 606 87- 90, 606 96- 98
• US Class Current: 606/88
• CPC Class Codes: A61B 17/155 Cutting femur
• CPC Class Codes: A61B 17/157 Cutting tibia
• CPC Class Codes: A61B 17/1764 for the knee
• CPC Class Codes: A61B 2017/00526 Methods of manufacturing
• CPC Class Codes: A61B 2017/568 produced with shape and dimensions specific for an individual patient
• CPC Class Codes: A61B 2034/108 Computer aided selection or customisation of medical implants or cutting guides
• CPC Class Codes: Y10T 409/30084 with regulation of operation by templet, card, or other replaceable information supply

Abstract

A number of orthopaedic surgical instruments are also disclosed. A method, apparatus, and system for fabricating such instruments are also disclosed.

Claims

1. A customized patient-specific orthopaedic instrument, comprising:

a customized patient-specific cutting block having a monolithic body comprising (i) a femoral-facing surface having a customized patient-specific negative contour that is shaped to match a corresponding contour of a portion of a femur of a patient, (ii) a tibial-facing surface having a customized patient-specific negative contour that is shaped to match a corresponding contour of a portion of a tibia of a patient, (iii) an outer surface opposite the femoral-facing surface and the tibial-facing surface, and (iv) at least one cutting guide including a slot that extends through the body between the outer surface and at least one of the femoral-facing surface and the tibial-facing surface,

wherein (i) the customized patient-specific negative contour of the femoral-facing surface includes a unique plurality of depressions and ridges that match a corresponding plurality of ridges and depressions of the corresponding contour of the portion of the femur of the patient, and (ii) the customized patient-specific negative contour of the tibial-facing surface includes a unique plurality of depressions and ridges that match a corresponding plurality of ridges and depressions of the corresponding contour of the portion of the tibia of the patient.

2. The customized patient-specific orthopaedic instrument of claim 1, wherein the body of the customized patient-specific cutting block further comprises a tibial guide pin hole extending through the body from the outer surface to the tibial-facing surface.

3. The customized patient-specific orthopaedic instrument of claim 2, wherein the body of the customized patient-specific cutting block further comprises a femoral guide pin hole extending through the body from the outer surface to the femoral-facing surface.

4. The customized patient-specific orthopaedic instrument of claim 1, wherein the body of the customized patient-specific cutting block further comprises a femoral guide pin hole extending through the body from the outer surface to the femoral-facing surface.

5. The customized patient-specific orthopaedic instrument of claim 1, wherein the at least one cutting guide includes a tibial cutting guide extending through the body from the outer surface to the tibial-facing surface.

6. The customized patient-specific orthopaedic instrument of claim 5, wherein the at least one cutting guide further includes a femoral cutting guide extending through the body from the outer surface to the femoral-facing surface.

7. The customized patient-specific orthopaedic instrument of claim 1, wherein the at least one cutting guide includes a femoral cutting guide extending through the body from the outer surface to the femoral-facing surface.

8. The customized patient-specific orthopaedic instrument of claim 1, wherein the body of the customized patient-specific cutting block further comprises an elongated tongue positioned between the femoral-facing surface and the tibial-facing surface and extending in a general direction away from the outer surface.

9. A customized patient-specific orthopaedic instrument, comprising:

a customized patient-specific cutting block having a monolithic body comprising (i) a femoral-facing surface having a customized patient-specific negative contour that is shaped to match a corresponding contour of an anterior portion of a femur of a patient, (ii) a tibial-facing surface having a customized patient-specific negative contour that is shaped to match a corresponding contour of an anterior portion of a tibia of a patient, (iii) an outer surface opposite the femoral-facing surface and the tibial-facing surface, (iv) at least one cutting guide including a slot that extends through the body between the outer surface and at least one of the femoral-facing surface and tibial-facing surface, and (v) an elongated tongue extending in a general direction away from the outer surface and configured to contact a proximal end of a tibia,

wherein (i) the customized patient-specific negative contour of the femoral-facing surface includes a unique plurality of depressions and ridges that match a corresponding plurality of ridges and depressions of the anterior portion of the femur of the patient, and (ii) the customized patient-specific negative contour of the tibial-facing surface includes a unique plurality of depressions and ridges that match a corresponding plurality of ridges and depressions of the anterior portion of the tibia of the patient.

10. A customized patient-specific orthopaedic instrument, comprising:

a customized patient-specific cutting block having a monolithic body comprising (i) a femoral-facing surface having a customized patient-specific negative contour that is shaped to match a corresponding contour of an anterior portion of a femur of a patient, (ii) a tibial-facing surface having a customized patient-specific negative contour that is shaped to match a corresponding contour of an anterior portion of a tibia of a patient, (iii) an outer surface opposite the femoral-facing surface and the tibial-facing surface, (iv) a first cutting guide that includes a slot extending through the body from the outer surface to the femoral-facing surface, and (v) a second cutting guide that includes a slot extending through the body from the outer surface to the tibial-facing surface,

wherein (i) the customized patient-specific negative contour of the femoral-facing surface includes a unique plurality of depressions and ridges that match a corresponding plurality of ridges and depressions of the anterior portion of the femur of the patient, and (ii) the customized patient-specific negative contour of the tibial-facing surface includes a unique plurality of depressions and ridges that match a corresponding plurality of ridges and depressions of the anterior portion of the tibia of the patient.