SURGICAL GUIDE SYSTEMS AND METHODS FOR PROSTHETIC JOINTS

• US 20110130795A1
• Filed: 11/24/2010
• Published: 06/02/2011
• Est. Priority Date: 11/24/2009
• Status: Active Grant

• Current Assignee: Tornier Incorporated
• Original Assignee: Tornier Incorporated
• Inventors: Ball, Robert J.
• Granted Patent: US 8,535,319 B2
• Time in Patent Office: Days
• US Class Current: 606/86.R
• CPC Class Codes: A61B 17/1778 for the shoulder

Abstract

A surgical system for assisting in the implanting of a glenoid component of a shoulder prosthesis in a patient includes a guide having guide features for guiding application of the bone preparation tool to the glenoid and a series of graphic representations of the glenoid component shown being implanted on the glenoid with different implant positions, each of which is associated with one of the graphic representations.

Claims

1. A surgical system for assisting in the implanting of a glenoid component of a shoulder prosthesis in a patient, the system comprising:

a guide for guiding application of a bone preparation tool to a glenoid, the guide having a bearing face configured to be fitted to the glenoid and guide features for guiding application of the bone preparation tool to the glenoid; and

a series of graphic representations of the glenoid component shown implanted on the glenoid in different implant positions, the respective implant positions of implantation of the glenoid component varying according to a degree of freedom, the guide features being configured to guide the application of the bone preparation tool to the glenoid according to a series of tool positions, each of which is associated with one of the implant positions.

2. The system of claim 1, wherein each graphic representation includes one or more drawings showing the corresponding position of implantation of the glenoid component on the socket of the patient.

3. The system of claim 1, wherein each graphic representation includes at least one predictive value representative of a mechanical characteristic associated with the implantation of the glenoid component on the glenoid according to the implant position of the graphic representation.

4. The system of claim 1, further comprising means for obtaining the series of graphic representations preoperatively, the means for obtaining configured to determine by calculation the implant positions for each graphic representation based on pre-operation mapping data relating to the socket and preestablished dimensional data relating to the glenoid component.

5. The system of claim 1, wherein the respective implant positions of the glenoid component shown implanted on the glenoid are provided at a plurality of pitches graduating by predetermined values and according to the degree of freedom.

6. The system of claim 1, further comprising a plurality of guides for guiding application of a bone preparation tool to the glenoid, each of the plurality of guides having guide features configured to guide bone preparation tool application to the glenoid according to a series of tool positions, each of which is associated with one of the graphic representations, wherein the graphic representations are visually grouped together into graphic representation groupings, each one of the groupings corresponding to one of the plurality of guides.

7. The system of claim 1, wherein the graphic representations are at least one of on a printed medium and an electronic display.

8. The system of claim 1, wherein the guide features are fixed, each of the fixed guide features being associated on a one-to-one basis with one of the graphic representations.

9. The system of claim 1, wherein the bearing face of the guide is configured to form a customized fit to the glenoid of the patient such that the guide and the glenoid have a predetermined relative position upon assembly of the guide to the glenoid of the patient.

10. The system of claim 1, further comprising complementary indicia on the guide and the series of graphic representations, the complementary indicia being configured to associate each of the tool positions supplied by the guide features with a corresponding one of the plurality of graphic representations.

11. The system of claim 1, wherein the visual indicia are alphanumeric identifiers.

12. A method of preparing a glenoid of a patient for receiving a glenoid component of a joint prosthesis, the method including:

fitting a guide to a glenoid of a patient, the guide having a bearing face fitted to the glenoid and guide features for guiding application of a bone preparation tool to the glenoid;

selecting a guide feature for guiding application of the preparation tool based upon a plurality of graphic representations of the glenoid component shown implanted on the glenoid in different implant positions, the guide features of the guide being associated with one of the graphic representations; and

applying the preparation tool using the selected tool position.

13. The method of claim 12, wherein applying the preparation tool using the selected tool position includes forming a channel in the glenoid for receiving the glenoid component.

14. The method of claim 13, further comprising positioning an anchor feature of the glenoid component in the channel formed into the glenoid.

15. The method of claim 12, wherein the bone preparation tool is a drill and the guide features include holes configured to receive a drill bit of the drill, the method further comprising drilling a channel into the glenoid with the drill bit guided through one of the holes.

16. The method of claim 12, wherein the guide and the plurality of graphic representations include complementary indicia, the method further comprising selecting the guide feature with which to apply the preparation tool based on the complementary indicia.

17. The method of claim 12, wherein the guide and the plurality of graphic representations include complementary indicia, the method further comprising selecting the guide feature with which to apply the preparation tool based on the complementary indicia.

18. A method of providing a surgical system for assisting in the implanting of a glenoid component of a shoulder prosthesis in a patient, the method comprising:

generating a plurality of graphic representations of a plurality of implant positions of the glenoid component shown implanted in the glenoid of the patient based upon preoperational mapping data relating to the glenoid of the patient and preestablished dimensional data relating to the glenoid component to be implanted; and

providing a guide for guiding application of a bone preparation tool to the glenoid to prepare the glenoid for receiving the glenoid component at a different one of the implant positions, the guide having a bearing face configured to be fitted to the glenoid and guide features for guiding application of the bone preparation tool, each of the guide features being configured to prepare the glenoid for receiving the glenoid component according to one of the implant positions.

19. The method of claim 18, further comprising providing the guide and the graphic representations with complementary indicia for associating each of the graphic representations with a corresponding guide feature.

20. The method of claim 18, further comprising providing the plurality of graphic representations in a printed form.

21. The method of claim 18, further comprising providing the plurality of graphic representations in electronic form.

22. The method of claim 18, further comprising determining the implant positions of the glenoid component according to a plurality of different pitches of the glenoid component as shown implanted in the glenoid, each of pitches graduating by predetermined value.