Patient-adapted and improved orthopedic implants, designs and related tools
First Claim
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1. A method of designing, in a computer system, a femoral implant for repairing a knee joint of a patient, comprising:
- obtaining patient-specific data from the patient including image data of the knee joint of the patient;
deriving from the image data varying radii in a first plane of a femoral condyle of the knee joint of the patient; and
designing the femoral implant having a condylar portion, wherein at least a portion of the joint-facing surface of the condylar portion has a sagittal curvature that substantially matches the derived varying radii in the first plane.
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Abstract
Methods and devices are disclosed relating improved articular models, implant components, and related guide tools and procedures. In addition, methods and devices are disclosed relating articular models, implant components, and/or related guide tools and procedures that include one or more features derived from patient-data, for example, images of the patient'"'"'s joint. The data can be used to create a model for analyzing a patient'"'"'s joint and to devise and evaluate a course of corrective action. The data also can be used to create patient-adapted implant components and related tools and procedures.
613 Citations
25 Claims
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1. A method of designing, in a computer system, a femoral implant for repairing a knee joint of a patient, comprising:
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obtaining patient-specific data from the patient including image data of the knee joint of the patient; deriving from the image data varying radii in a first plane of a femoral condyle of the knee joint of the patient; and designing the femoral implant having a condylar portion, wherein at least a portion of the joint-facing surface of the condylar portion has a sagittal curvature that substantially matches the derived varying radii in the first plane. - 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 creating, using a computer system a femoral implant for repairing a knee joint of a patient, comprising:
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obtaining patient-specific data from the patient including image data of the knee joint of the patient; deriving from the image data a joint-facing shape of a femoral condyle of the knee joint of the patient; and selecting a femoral implant having a condylar portion, wherein at least a portion of the joint-facing surface of the condylar portion has a sagittal curvature that approximates a sagittal curvature of the derived joint-facing shape of the femoral condyle. - View Dependent Claims (19, 20)
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21. A method of designing an articular repair system for repairing a joint of a patient, comprising:
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obtaining electronic image data of the joint of the patient; deriving, from the electronic image data, varying curvatures of at least a portion of an articular surface of the joint of the patient, wherein the varying curvatures are in a first plane; designing an articular repair system having a corresponding articular surface portion that includes the varying curvatures in a corresponding first plane, wherein the articular repair system has a single radius in a second plane. - View Dependent Claims (22, 23, 24, 25)
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Specification