Posterior-Stabilized Knee Implant Components and Instruments

摘要

Patient-adapted articular repair systems, including implants, instruments, and surgical plans, and methods of making and using such systems, are disclosed herein. In particular, various embodiments include knee joint articular repair systems designed for posterior stabilization, including patient-adapted posterior-stabilizing features.

主权项

1. A method of making a patient-adapted articular repair system for treatment of a knee joint of a patient, the knee joint including a femur and a tibia, the method comprising:
receiving patient-specific information; deriving at least a portion of a shape of a joint-facing surface of a first condyle portion of a femoral implant component model from, at least in part, the patient-specific information; deriving at least a portion of a shape of a joint-facing surface of a second condyle portion of the femoral implant component model from, at least in part, the patient-specific information; deriving at least a portion of a shape of a first articular-bearing surface portion of a tibial implant component model from, at least in part, the patient-specific information; deriving at least a portion of a shape of a second articular-bearing surface portion of the tibial implant component model from, at least in part, the patient-specific information; aligning the femoral implant component model and the tibial implant component model disposed at a first flexion angle such that a bearing point of the joint-facing surface of the first condyle portion is aligned with a bearing point of the first articular-bearing surface; determining a position of at least a first portion of a cam bearing surface relative to the first condyle portion and second condyle portion based, at least in part, on the position of the first condyle portion and/or the position of the second condyle portion relative to at least a portion of a bearing surface of a post portion of the tibial implant component, when the femoral implant component model and the tibial implant component model are disposed and aligned at the first flexion angle.