Implant planning using captured joint motion information

• US 9,827,051 B2
• Filed: 08/10/2015
• Issued: 11/28/2017
• Est. Priority Date: 04/19/2007
• Status: Active Grant

• Current Assignee: MAKO Surgical Corporation (Stryker Corporation)
• Original Assignee: MAKO Surgical Corporation (Stryker Corporation)
• Inventors: Arata, Louis, Mozes, Alon, Otto, Jason, Vorhis, Robert Van
• Primary Examiner(s): Stout, Michael C
• Application Number:
  US14/822,617
• Publication Number:
  US 20160038249A1
• Time in Patent Office: 841 Days
• CPC Class Codes: A61B 2034/101 Computer-aided simulation of surgical operations
• CPC Class Codes: A61B 2034/102 Modelling of surgical devices, implants or prosthesis
• CPC Class Codes: A61B 2034/104 Modelling the effect of the tool, e.g. the effect of an implanted prosthesis or for predicting the effect of ablation or burring
• CPC Class Codes: A61B 2034/105 Modelling of the patient, e.g. for ligaments or bones
• CPC Class Codes: A61B 2034/107 Visualisation of planned trajectories or target regions
• CPC Class Codes: A61B 2034/108 Computer aided selection or customisation of medical implants or cutting guides
• CPC Class Codes: A61B 2034/2055 Optical tracking systems
• CPC Class Codes: A61B 2034/252 indicating steps of a surgical procedure
• 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 90/36 Image-producing devices or illumination devices not otherwise provided for
• CPC Class Codes: A61F 2/3859 Femoral components
• CPC Class Codes: A61F 2/389 Tibial components A61F2/3868 takes 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

The description relates to surgical computer systems, including computer program products, and methods for implant planning using captured joint motion information. Data is captured representative of a range of motion of a joint associated with a particular individual, where the joint includes a first bone and a second bone. The first bone of the joint is represented and a first implant model is associated with the representation of the first bone. Based on the captured data, a relationship is determined between the first implant model and a representation of the second bone through at least a portion of the range of motion of the joint. Information is displayed representative of the determined relationship.

Claims

1. A surgical planning method comprising:

capturing data, using a tracking system associated with a computing system as a native joint is moved within a range of motion of a joint, the joint comprising a first bone and a second bone;

wherein the computing system is further used to perform the steps of;

representing the first bone of the joint;

associating a first implant model with the representation of the first bone;

representing a second bone of the joint;

based on the captured data, determining a distance from at least one point on a surface of the first implant model to the representation of the second bone at a plurality of angles within the range of motion of the joint; and

displaying information representative of the respective determined distances at the plurality of angles, wherein the information representative of the respective determined distances at the plurality of angles is displayed in the form of a chart indicating at least one of the plurality of angles and the respective determined distance for the at least one of the plurality of angles.

2. The method of claim 1, further comprising enabling a user to change a position of the first implant model.

3. The method of claim 2, further comprising updating the determined distances based on the changed position of the first implant model.

4. The method of claim 2, further comprising:

associating the first implant model with the representation of the first bone based on the changed position; and

based on the captured data, determining a relationship between at least one point on the surface the first implant model at its changed position and the representation of the second bone through at least a portion of the range of motion of the joint.

5. The method of claim 1, wherein the representation of the second bone includes a representation of a surface of the second bone, a second implant model associated with the representation of the second bone, or both.

6. The method of claim 1, wherein capturing comprises:

tracking a position of the first bone and a position of the second bone; and

recording the positions as the joint moves through the range of motion.

7. The method of claim 1, further comprising:

representing a position of the first implant model relative to a position of the representation of the second bone; and

comparing the positions at any selected angle within the range of motion of the joint, inclusive.

8. The method of claim 1, further comprising:

representing a position of the first implant model relative to a position of a second implant model associated with the second bone; and

comparing the positions at any selected angle within the range of motion of the joint, inclusive.

9. The method of claim 1, wherein determining distances comprises identifying an overlap, a gap, or both between the first implant model and the representation of the second bone at one or more angles within the range of motion of the joint.

10. The method of claim 9, wherein displaying comprises displaying a calculated measurement of the overlap, the gap, or both at any selected angle or at a plurality of angles within the range of motion of the joint.

11. The method of claim 9, wherein displaying comprises displaying of the overlap, the gap, or both in a representation of at least a portion of the joint at one or more angles within the range of motion of the joint.

12. The method of claim 1, further comprising:

mapping at least one point on a surface of the first implant model at the plurality of angles within the range of motion of the joint, inclusive; and

aligning at least one of the mapped points with the representation of the second bone.

13. The method of claim 12, further comprising associating a second implant model with the representation of the second bone based on at least one of the mapped points.

14. The method of claim 1, wherein capturing further comprises capturing data representative of a manipulation of the joint to achieve a desired internal/external angle, varus/valgus angle, flexion angle, or any combination thereof.

15. The method of claim 14, further comprising enabling a user to manipulate placement of at least one implant model corresponding to at least a portion of an actual implant so that the determined relationship through at least a portion of the range of motion of the joint allows the desired internal/external angle, varus/valgus angle, flexion angle, or any combination thereof.

18. The method of claim 1, wherein determining distances comprises identifying an overlap, a gap, or both between the first implant model and the representation of the second bone at one or more angles within the range of motion of the joint.

19. The method of claim 18, wherein displaying comprises displaying of the overlap, the gap, or both in a representation of at least a portion of the joint at one or more angles within the range of motion of the joint.

16. A surgical planning method comprising:

capturing data, using a tracking system associated with a computing system as a native joint is moved within a range of motion of a joint, the joint comprising a first bone and a second bone;

wherein the computing system is further used to perform the steps of;

representing the first bone of the joint;

associating a first implant model with the representation of the first bone;

representing a second bone of the joint;

based on the captured data, determining a distance from at least one point on a surface of the first implant model to the representation of the second bone at a plurality of angles within the range of motion of the joint; and

displaying information representative of the respective determined distances at the plurality of angles, wherein the information representative of the respective determined distances at the plurality of angles is displayed in the form of a visual representation of the first implant model and the joint at each of the plurality of angles.

17. The method of claim 16, wherein the representation of the second bone includes a representation of a surface of the second bone, a second implant model associated with the representation of the second bone, or both.

20. The method of claim 16, further comprising:

mapping at least one point on a surface of the first implant model at the plurality of angles within the range of motion of the joint, inclusive;

aligning at least one of the mapped points with the representation of the second bone; and

associating a second implant model with the representation of the second bone based on at least one of the mapped points.