Systems and methods for joint replacement

摘要

Systems and methods for joint replacement are provided. The systems and methods include a surgical orientation device, a reference sensor device, and at least one orthopedic fixture. The surgical orientation device, reference sensor device, and orthopedic fixtures can be used to locate the orientation of an axis in the body, to adjust an orientation of a cutting plane or planes along a bony surface, or otherwise to assist in an orthopedic procedure(s).

主权项

1. A method for performing total knee arthroplasty on a knee joint of a leg of a patient, comprising:
preparing a distal portion of a femur for receiving a knee implant, comprising:
placing the knee joint in flexion and exposing a distal end of the femur;coupling a first orthopedic fixture to a distal portion of the femur, the first orthopedic fixture comprising a surgical orientation device, the surgical orientation device comprising an orientation sensor and an interactive user interface configured to display an indication of a change in one or more angle measurements corresponding to a flexion-extension angle or a varus-valgus angle of a mechanical axis of the femur, the first orthopedic fixture further comprising a reference device, the reference device comprising a reference sensor;monitoring an orientation of the reference sensor while swinging the leg to obtain information regarding a location of the mechanical axis;adjusting a varus/valgus and flexion/extension angle of a portion of the first orthopedic fixture by monitoring the first surgical orientation device and moving the reference device relative to the surgical orientation device;attaching a cutting block to the first orthopedic fixture, the cutting block being oriented relative an adjusted varus/valgus and flexion/extension angle; andresecting the distal end of the femur.