FLEXIBLY PLANNED KITTED KNEE PROTOCOL

• US 20160346044A1
• Filed: 05/27/2016
• Published: 12/01/2016
• Est. Priority Date: 05/28/2015
• Status: Abandoned Application

• Current Assignee: Biomet Manufacturing, LLC (Zimmer Biomet Holdings, Inc.)
• Original Assignee: Biomet Manufacturing, LLC (Zimmer Biomet Holdings, Inc.)
• Inventors: Brown, David R., Uthgenannt, Brian, Metzger, Robert
• Application Number:
  US15/167,261
• Publication Number:
  US 20160346044A1
• Time in Patent Office: Days
• US Class Current: 1/1
• 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 2017/0268 for the knee
• CPC Class Codes: A61B 2034/105 Modelling of the patient, e.g. for ligaments or bones
• CPC Class Codes: A61B 2034/108 Computer aided selection or customisation of medical implants or cutting guides
• CPC Class Codes: A61B 2034/2048 using an accelerometer or inertia sensor
• CPC Class Codes: A61B 2090/061 for measuring dimensions, e.g. length
• CPC Class Codes: A61B 2090/064 for measuring force, pressure or mechanical tension
• CPC Class Codes: A61B 2090/3966 Radiopaque markers visible in an X-ray image
• CPC Class Codes: A61B 34/10 Computer-aided planning, simulation or modelling of surgical operations
• CPC Class Codes: A61B 34/20 Surgical navigation systems; Devices for tracking or guiding surgical instruments, e.g. for frameless stereotaxis
• CPC Class Codes: A61B 34/25 User interfaces for surgical systems
• CPC Class Codes: A61B 90/06 Measuring instruments not otherwise provided for

Abstract

A method of planning and preparing for a total knee arthroplasty procedure, the method comprising: generating three-dimensional models of a tibia and a femur of a patient; sizing the tibia and the femur to within a range based on the three-dimensional models; selecting a resection tool for each of the tibia and femur based on the three-dimensional models; and packaging the resection tools. A method of planning and preparing for a surgical procedure can comprise: generating a three-dimensional bone model for one or more bones; sizing the one or more bones based on the three-dimensional model; recording a surgical plan based on the three-dimensional bone model; selecting a first surgical tool for the one or more bone based on the surgical plan; and evaluating selection of a second surgical tool based on a performance parameter of the first surgical tool.

Claims

1. A method of planning and preparing for a total knee arthroplasty procedure, the method comprising:

generating three-dimensional models of a tibia and a femur of a patient;

sizing the tibia and the femur to within a range based on the three-dimensional models;

selecting a resection tool for each of the tibia and femur based on the three-dimensional models; and

packaging the resection tools.

2. The method of claim 1, wherein the femoral and tibial resection tools are selected from between patient-specific resection tools and a sensor-assisted resection tool.

3. The method of claim 2, further comprising utilizing kinematic data to facilitate resection of the femur.

4. The method of claim 3, further comprising using sensors positioned on the tibia and femur to determine a kinematic axis.

5. The method of claim 2, further comprising utilizing personal data of the patient that includes two or more of height, weight, body mass index, age, gender race, ethnicity, daily activity and disabilities of the patient.

6. The method of claim 2, further comprising using anatomic data including anterior superior iliac spine data.

7. The method of claim 2, further comprising sizing the distal femur after resection using an adjustable contour block.

8. The method of claim 7, further comprising using an adjustable medial/lateral width gage to size the distal femur.

9. The method of claim 1, further comprising using a distractor device to verify alignment of the femur and tibia after resection.

10. The method of claim 1, further comprising selecting one of a tibial resection tool and a femoral resection tool first based on the three-dimensional models and subsequently selecting the other of the tibial resection tool and the femoral resection tool based on a first tool selected.

11. The method of claim 1, further comprising manufacturing at least one of the resection tools as a patient-specific device.

12. A method of planning and preparing for a surgical procedure, the method comprising:

generating a three-dimensional bone model for one or more bones;

sizing the one or more bones based on the three-dimensional model;

recording a surgical plan based on the three-dimensional bone model;

selecting a first surgical tool for the one or more bones based on the surgical plan; and

evaluating selection of a second surgical tool based on a performance parameter of the first surgical tool.

13. The method of claim 12, further comprising packaging the first and second surgical tools.

14. The method of claim 12, further comprising utilizing a computer searchable computer database to select the first surgical tool.

15. The method of claim 14, further comprising selecting the second surgical tool using the computer database based on a list of selectable surgical tools compatible with the first surgical tool selected.

16. The method of claim 15, wherein the computer searchable database further comprises anthropometric data.

17. The method of claim 12, further comprising utilizing an adjustable contour block to size the bone.

18. The method of claim 12, further comprising using anatomic data including anterior superior iliac spine data intraoperatively.

19. The method of claim 12, further comprising using sensors positioned on the one or more bones to determine a kinematic axis intraoperatively.

20. The method of claim 12, further comprising manufacturing at least one of the first and second surgical tools as a patient-specific device.