Methods for determining meniscal size and shape and for devising treatment
First Claim
1. A method of selecting an implant having an inner surface for attachment to a bone of a patient'"'"'s knee joint and an outer surface for providing an articular surface, the method comprising:
- obtaining electronic image data of the knee joint;
generating a three dimensional representation of the knee joint;
deriving, from the three dimensional representation, a shape of articular tissue including cartilage of the knee joint;
determining one or more dimensions of a femoral condyle of the knee joint based on the three dimensional representation;
selecting the implant from a library of implants based on the one or more dimensions of the femoral condyle; and
adjusting one or more dimensions of the selected implant to achieve an optimal fit with the patient'"'"'s knee joint.
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Abstract
The present invention relates to methods for determining meniscal size and shape for use in designing therapies for the treatment of various joint diseases. The invention uses an image of a joint that is processed for analysis. Analysis can include, for example, generating a thickness map, a cartilage curve, or a point cloud. This information is used to determine the extent of the cartilage defect or damage and to design an appropriate therapy, including, for example, an implant. Adjustments to the designed therapy are made to account for the materials used.
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Citations
30 Claims
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1. A method of selecting an implant having an inner surface for attachment to a bone of a patient'"'"'s knee joint and an outer surface for providing an articular surface, the method comprising:
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obtaining electronic image data of the knee joint; generating a three dimensional representation of the knee joint; deriving, from the three dimensional representation, a shape of articular tissue including cartilage of the knee joint; determining one or more dimensions of a femoral condyle of the knee joint based on the three dimensional representation; selecting the implant from a library of implants based on the one or more dimensions of the femoral condyle; and adjusting one or more dimensions of the selected implant to achieve an optimal fit with the patient'"'"'s knee joint. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A method of selecting an implant having an inner surface for attachment to a bone of a patient'"'"'s knee joint and an outer surface for providing an articular surface, the method comprising:
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obtaining electronic image data of the knee joint; generating a three dimensional representation of the knee joint; deriving, from the electronic image data, a shape of articular tissue including cartilage of the knee joint; determining, based at least in part on the three dimensional representation, one or more medio-lateral dimensions of a femoral condyle of the knee joint; selecting the implant from a library of implants based on the one or more medio-lateral dimensions of the femoral condyle; and adjusting one or more dimensions of the selected implant to achieve an optimal fit with the patient'"'"'s knee joint. - View Dependent Claims (19, 20, 21)
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22. A method of selecting a tibial implant having an inner surface for attachment to a bone of a patient'"'"'s knee joint and an outer surface for providing an articular surface, the method comprising:
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obtaining electronic image data of the knee joint; generating a three dimensional representation of the knee joint; deriving, from the three dimensional representation, a shape of articular tissue including cartilage of the knee joint; determining one or more dimensions of a tibial plateau of the knee joint based on the three-dimensional representation; selecting the implant from a library of implants based on the one or more dimensions of the tibial plateau; and adjusting one or more dimensions of the selected implant to achieve an optimal fit with the patient'"'"'s knee joint. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30)
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Specification