Patient-adapted and improved orthopedic implants, designs, and related tools

摘要

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.

主权项

1. A tibial implant for a knee arthroplasty in a patient, the tibial implant comprising:
(a) a tibial tray sized and shaped generally for placement on a proximal surface of a tibia of the patient and having at least one insert locking mechanism; (b) a first insert comprising a first reciprocal locking mechanism, a first bottom surface for engaging a surface of the tibial tray, a first articular surface portion generally opposite the first bottom surface, and a first thickness extending in a generally perpendicular direction between the first bottom surface and the first articular surface portion; and (c) a second insert comprising a second reciprocal locking mechanism, a second bottom surface for engaging a surface of the tibial tray, a second articular surface portion generally opposite the second bottom surface, and a second thickness extending in a generally perpendicular direction between the second bottom surface and the second articular surface portion; wherein the first thickness is greater than the second thickness, wherein the first articular surface portion or the second articular surface portion, or both, includes patient-adapted sagittal radii or curvature.