Systems and methods for planning placement of an acetabular implant for a patient based on pelvic tilt
AssigneeHowmedica Osteonics Corp.
InventorsThomas Francis McCarthy, Vincent Libranda Alipit
Life of this patent
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Abstract
Systems and methods are provided for planning placement of an acetabular implant for a patient based on pelvic tilt. The system includes one or more sensors to be placed on the patient to provide measurements of a pelvic tilt angle of the patient taken with the patient in various functional positions to produce patient-specific data based on pelvic tilt from which to plan an inclination angle and a version angle of the acetabular implant for the patient.
Claims19
A system for planning placement of an acetabular implant for a patient based on pelvic tilt, the system comprising:
- a display;
- one or more sensors to be placed on the patient and operable to provide:
- a first measurement taken with the patient in a first functional position to establish an initial sensor tilt angle;
- and
- a second measurement taken, in an image-free mode, with the patient in a second functional position, different than the first functional position, to produce patient-specific data based on pelvic tilt from which to plan an inclination angle and a version angle of the acetabular implant for the patient;
- and
- a system controller operable to:
- establish an image-based pelvic tilt angle for the patient for the first functional position;
- correlate the initial sensor tilt angle to the image-based pelvic tilt angle,
- generate a representation of a virtual, three-dimensional bone model of the patient,
- display the representation of the virtual, three-dimensional bone model on the display, and
- display a representation of a virtual, three-dimensional model of the acetabular implant on the display.
A method of planning placement of an acetabular implant for a patient based on pelvic tilt, the method comprising the steps of:
- establishing an image-based pelvic tilt angle for the patient for a first functional position;
- obtaining a first measurement provided by one or more sensors placed on the patient and taken with the patient in the first functional position to establish an initial sensor tilt angle;
- correlating the initial sensor tilt angle to the image-based pelvic tilt angle;
- obtaining a second measurement provided by the one or more sensors placed on the patient and taken, in an image-free mode, with the patient in a second functional position, different than the first functional position, to produce patient-specific data based on pelvic tilt from which to plan an inclination angle and a version angle of the acetabular implant for the patient;
- generating a representation of a virtual, three-dimensional bone model of the patient;
- displaying the representation of the virtual, three-dimensional bone model;
- and
- displaying a representation of a virtual, three-dimensional model of the acetabular implant.
Dependencies are inferred from the claim text.