METHOD AND APPARATUS FOR PREPARING FOR A SURGICAL PROCEDURE

• US 20080269906A1
• Filed: 03/06/2008
• Published: 10/30/2008
• Est. Priority Date: 03/06/2007
• Status: Active Grant

• Current Assignee: Cleveland Clinic Foundation
• Original Assignee: Cleveland Clinic Foundation
• Inventors: Iannotti, Joseph P., Bryan, Jason Allen, Scalise, Jason
• Granted Patent: US 8,014,984 B2
• Time in Patent Office: Days
• US Class Current: 623/19.11
• CPC Class Codes: A61B 2034/101 Computer-aided simulation of surgical operations
• CPC Class Codes: A61B 34/10 Computer-aided planning, simulation or modelling of surgical operations
• CPC Class Codes: A61B 90/36 Image-producing devices or illumination devices not otherwise provided for
• CPC Class Codes: A61F 2/30942 for designing or making customized prostheses, e.g. using templates, CT or NMR scans, finite-element analysis or CAD-CAM techniques
• CPC Class Codes: A61F 2002/30948 using computerized tomography, i.e. CT scans
• CPC Class Codes: A61F 2002/30952 using CAD-CAM techniques or NC-techniques
• CPC Class Codes: G09B 23/30 Anatomical models G09B23/281 - G09B23/288 take precedence
• CPC Class Codes: G16H 50/50 for simulation or modelling of medical disorders
• CPC Class Codes: G16Z 99/00 Subject matter not provided for in other main groups of this subclass

Abstract

A method of preparing for a surgical procedure includes creating a three-dimensional bone model of a subject bone of a patient. At least a portion of the bone model is compared to at least one three-dimensional reference anatomic model. At least one structural difference between the bone model and the at least one reference anatomic model is identified. At least one desired subject bone structural change is specified to produce a modified bone model responsive to the step of identifying at least one structural difference between the bone model and the at least one reference anatomic model. An apparatus for preparing for a surgical procedure is also provided.

Claims

1. A method of preparing for a surgical procedure, the method comprising the steps of:

creating a three-dimensional bone model of a subject bone of a patient;

comparing at least a portion of the bone model to at least one three-dimensional reference anatomic model;

identifying at least one structural difference between the bone model and the at least one reference anatomic model; and

specifying at least one desired subject bone structural change to produce a modified bone model responsive to the step of identifying at least one structural difference between the bone model and the at least one reference anatomic model.

2. The method of claim 1, including the steps of:

comparing at least a portion of the modified bone model to the at least one reference anatomic model;

identifying at least one structural difference between the modified bone model and the at least one reference anatomic model; and

specifying at least one desired subject bone structural change to produce a second modified bone model responsive to the step of identifying at least one structural difference between the modified bone model and the at least one reference anatomic model.

3. The method of claim 1, wherein the at least one reference anatomic model is a negative space reference anatomic model, and the step of comparing at least a portion of the bone model to at least one three-dimensional reference anatomic model includes the step of mating the at least one reference anatomic model to the bone model.

4. The method of claim 1, including the step of associating at least one of the bone model and the modified bone model with a three-dimensional prosthetic model of a prosthetic bone component.

5. The method of claim 4, wherein the step of associating at least one of the bone model and the modified bone model with a three-dimensional prosthetic model of a prosthetic bone component includes the step of identifying at least one desired subject bone structural change needed to mate the at least one of the bone model and the modified bone model with the prosthetic model.

6. The method of claim 5, including the step of adapting the subject bone of the patient to mate with the prosthetic bone component responsive to the step of identifying at least one desired subject bone structural change needed to mate the at least one of the bone model and the modified bone model with the prosthetic model.

7. The method of claim 1, including the step of creating a custom prosthetic bone component responsive to the step of identifying at least one structural difference between the bone model and the at least one reference anatomic model.

8. The method of claim 1, including the step of choosing one of a plurality of predefined prosthetic bone components responsive to the step of identifying at least one structural difference between the bone model and the at least one reference anatomic model.

9. The method of claim 1, wherein the step of comparing at least a portion of the bone model to at least one three-dimensional reference anatomic model includes the steps of:

choosing one of a plurality of predefined three-dimensional reference anatomic models; and

comparing at least a portion of the bone model to the chosen reference anatomic model.

10. The method of claim 1, wherein at least one of the steps is performed virtually using a computer.

11. The method of claim 1, wherein the subject bone is at least a portion of a joint.

12. The method of claim 1, wherein the subject bone is at least a portion of a fixed skeletal component.

13. A method of performing a shoulder arthroplasty, the method comprising the steps of:

creating a three-dimensional bone model of at least a portion of a scapula of a patient;

comparing at least a portion of the bone model to at least one three-dimensional reference anatomic model;

identifying at least one structural difference between the bone model and the at least one reference anatomic model;

specifying at least one desired subject bone structural change to produce a modified bone model responsive to the step of identifying at least one structural difference between the bone model and the at least one reference anatomic model;

associating at least one of the bone model and the modified bone model with a three-dimensional prosthetic model of a prosthetic shoulder joint component;

adapting the scapula of the patient responsive to the step of specifying at least one desired subject bone structural change to produce a modified bone model; and

mating the scapula with the prosthetic shoulder joint component.

14. The method of claim 13, wherein the step of comparing at least a portion of the bone model to at least one three-dimensional reference anatomic model includes the step of mating a predefined glenoid vault negative space model with a glenoid vault portion of the bone model.

15. The method of claim 13, including the steps of:

comparing at least a portion of the modified bone model to the at least one reference anatomic model;

identifying at least one structural difference between the modified bone model and the at least one reference anatomic model; and

specifying at least one desired subject bone structural change to produce a second modified bone model responsive to the step of identifying at least one structural difference between the modified bone model and the at least one reference anatomic model.

16. The method of claim 13, wherein the step of associating at least one of the bone model and the modified bone model with a three-dimensional prosthetic model of a prosthetic shoulder joint component includes the step of identifying at least one desired subject bone structural change needed to mate the at least one of the bone model and the modified bone model with the prosthetic model.

17. The method of claim 13, including the step of creating a custom prosthetic shoulder joint component responsive to the step of identifying at least one structural difference between the bone model and the at least one reference anatomic model.

18. The method of claim 13, including the step of choosing one of a plurality of predefined prosthetic shoulder joint components responsive to the step of identifying at least one structural difference between the bone model and the at least one reference anatomic model.

19. The method of claim 13, wherein the step of comparing at least a portion of the bone model to at least one three-dimensional reference anatomic model includes the steps of:

choosing one of a plurality of predefined three-dimensional reference anatomic models; and

comparing at least a portion of the bone model to the chosen reference anatomic model.

20. The method of claim 13, wherein at least one of the steps is performed virtually using a computer.

21. A joint surgery preparation tool, comprising:

means for creating a three-dimensional joint model of a subject joint of a patient;

means for comparing at least a portion of the joint model to at least one three-dimensional reference anatomic model;

means for identifying at least one structural difference between the joint model and the at least one reference anatomic model; and

means for specifying at least one desired subject joint structural change to produce a modified joint model responsive to the means for identifying at least one structural difference between the joint model and the at least one reference anatomic model.

22. The joint surgery preparation tool of claim 21, including means for displaying the joint model.

23. The joint surgery preparation tool of claim 21, including:

means for comparing at least a portion of the modified joint model to the at least one reference anatomic model;

means for identifying at least one structural difference between the modified joint model and the at least one reference anatomic model; and

means for specifying at least one desired subject joint structural change to produce a second modified joint model responsive to the means for identifying at least one structural difference between the modified joint model and the at least one reference anatomic model.

24. The joint surgery preparation tool of claim 21, wherein the at least one reference anatomic model is a negative space reference anatomic model, the means for comparing including means for mating the at least one reference anatomic model to the joint model.

25. The joint surgery preparation tool of claim 21, including means for associating at least one of the joint model and the modified joint model with a three-dimensional prosthetic model of a prosthetic joint component.

26. The joint surgery preparation tool of claim 25, wherein the means for associating includes means for identifying at least one desired subject joint structural change needed to mate the at least one of the joint model and the modified joint model with the prosthetic model.

27. The joint surgery preparation tool of claim 25, including means for adapting the subject joint of the patient to mate with the prosthetic joint component.

28. The joint surgery preparation tool of claim 21, including means for creating a custom prosthetic joint component responsive to the means for identifying.

29. The joint surgery preparation tool of claim 21, including means for choosing one of a plurality of predefined prosthetic joint components responsive to the means for identifying.

30. The joint surgery preparation tool of claim 21, wherein the means for comparing at least a portion of the joint model to at least one three-dimensional reference anatomic model includes:

means for choosing one of a plurality of predefined three-dimensional reference anatomic models; and

means for comparing at least a portion of the joint model to the chosen reference anatomic model.