Kinematically aligned robotic total knee arthroplasty
AssigneeZimmer, Inc.
InventorJoseph Maratt
Life of this patent
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Abstract
A system and method may use a robotic arm to perform a range of motion test for use in generating information related to kinematic alignment in a total or partial knee arthroplasty. A method may include controlling a robotic arm to move a tibia throughout a range of motion for a knee. A series of measurements of gap distance for the knee may be used to determine a tibial resection location for the tibia. The method may include updating a plan (e.g., 3D, preoperative) for an orthopedic procedure on the knee with the tibial resection location.
Claims20
A robotic surgical system comprising:
- a robotic controller to control a robotic arm to move a tibia throughout a range of motion for a knee;
- a sensor to obtaining a series of measurements of a gap distance for the knee throughout the range of motion;
- and
- a processor to:
- automatically determine, based on a 3D model and the series of measurements, a tibial resection location;
- and
- automatically update a 3D plan for an orthopedic procedure on the knee with the tibial resection location.
A method comprising:
- using a processor of a robotic surgical system to perform operations comprising:
- controlling a robotic arm to move a tibia throughout a range of motion for a knee;
- obtaining a series of measurements of a gap distance for the knee throughout the range of motion;
- determining, based on a 3D model and the series of measurements, a tibial resection location;
- and
- updating a 3D plan for an orthopedic procedure on the knee with the tibial resection location.
A machine-readable medium including instructions, which when executed by a processor, cause the processor to perform operations to:
- control a robotic arm to move a tibia throughout a range of motion for a knee;
- obtain a series of measurements of a gap distance for the knee throughout the range of motion;
- determine, based on the 3D model and the series of measurements, a tibial resection location;
- and
- update a 3D plan for an orthopedic procedure on the knee with the tibial resection location.
Dependencies are inferred from the claim text.