Implant planning using corrected captured joint motion information
First Claim
1. A surgical planning method comprising:
- tracking, using a tracking system, a first position tracker affixed to a first bone of a native joint while the first bone, a second bone, or both bones of the native joint are subject to a corrective force aligning the first and second bones in a desired alignment;
capturing pose data, obtained from the first position tracker, of the native joint subject to the corrective force at a plurality of poses within a range of motion of the native joint, the data representative of a corrected limb pose at the plurality of poses within the range of motion of the native joint;
using the computing system to;
represent the first bone of the joint;
represent the second bone of the joint;
associate a first implant model with the representation of the first bone;
associate a second implant model with the representation of the second bone;
based on the captured data, determine, an amount of an overlap between the first implant model and the second implant model at one or more poses of the plurality of poses within the range of motion of the joint; and
displaying on a display device information representative of the determined amount of the overlap.
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Accused Products
Abstract
The description relates to surgical computer systems, including computer program products, and methods for implant planning using corrected captured joint motion information. Data representative of a corrected limb pose at a plurality of poses within a range of motion of a joint associated with a particular individual is captured, the joint comprising a first bone and a second bone, while the first bone, the second bone, or both are subject to a corrective force aligning the first and second bones in a desired alignment. The first bone of the joint is represented. The second bone of the joint is represented. A first implant model is associated with the representation of the first bone. A second implant model is associated with the representation of the second bone. Based on the captured data, a relationship is determined between the first implant model and the second implant model at one or more poses of the plurality of poses within the range of motion of the joint. Information representative of the determined relationship is displayed.
81 Citations
24 Claims
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1. A surgical planning method comprising:
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tracking, using a tracking system, a first position tracker affixed to a first bone of a native joint while the first bone, a second bone, or both bones of the native joint are subject to a corrective force aligning the first and second bones in a desired alignment; capturing pose data, obtained from the first position tracker, of the native joint subject to the corrective force at a plurality of poses within a range of motion of the native joint, the data representative of a corrected limb pose at the plurality of poses within the range of motion of the native joint; using the computing system to; represent the first bone of the joint; represent the second bone of the joint; associate a first implant model with the representation of the first bone; associate a second implant model with the representation of the second bone; based on the captured data, determine, an amount of an overlap between the first implant model and the second implant model at one or more poses of the plurality of poses within the range of motion of the joint; and displaying on a display device information representative of the determined amount of the overlap. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A surgical planning system comprising:
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a tracking system, comprising a first position tracker configured to be affixed to a first bone of a native joint; and a computer configured to; track, using the tracking system, the first position tracker while the first bone, a second bone, or both bones of the native joint are subject to a corrective force aligning the first and second bones in a desired alignment; capture pose data, obtained by tracking the first position tracker, of the native joint subject to the corrective force at a plurality of poses within a range of motion of the native joint, representative of a corrected limb pose at the plurality of poses within the range of motion of the native joint; represent the first bone of the joint; represent the second bone of the joint; associate a first implant model with the representation of the first bone; associate a second implant model with the representation of the second bone; based on the captured data, determine an amount of an overlap between the first implant model and the second implant model at one or more poses of the plurality of poses within the range of motion of the joint; and display information representative of the determined amount of the overlap. - View Dependent Claims (20, 21, 22)
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23. A computer program product, tangibly embodied in a non-transitory computer readable medium, the computer program product including instructions being operable to cause a data processing apparatus to:
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capture pose data of a native joint, obtained from a first position tracker affixed to a first bone of the native joint, while the first bone, a second bone, or both bones of the native joint are subject to a corrective force aligning the first and second bones in a desired alignment, the data captured at a plurality of poses within a range of motion of the native joint, representative of a corrected limb pose at the plurality of poses within the range of motion of the native joint; represent the first bone of the joint; represent the second bone of the joint; associate a first implant model with the representation of the first bone; associate a second implant model with the representation of the second bone; based on the captured data, determine an amount of at least one of a gap or an overlap between the first implant model and the second implant model at one or more poses of the plurality of poses within the range of motion of the joint; and display information representative of the determined amount of at least one of the gap or the overlap.
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24. A system comprising:
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means for tracking a first position tracker affixed to a first bone of a native joint while the first bone, a second bone, or both bones of the native joint are subject to a corrective force aligning the first and second bones in a desired alignment; means for capturing, from the means for tracking, pose data of the native joint subject to the corrective force at a plurality of poses within a range of motion of the native joint, representative of a corrected limb pose at the plurality of poses within the range of motion of the native joint; means for representing the first bone of the joint; means for representing the second bone of the joint; means for associating a first implant model with the representation of the first bone; means for associating a second implant model with the representation of the second bone; based on the captured data, means for determining an amount of at least one of the gap or the overlap between the first implant model and the second implant model at one or more poses of the plurality of poses within the range of motion of the joint; and means for displaying information representative of the determined amount of at least one of the gap or the overlap.
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Specification