Patient-matched surgical component and methods of use
First Claim
1. A method of performing a surgical procedure aided by a surgical navigation system, comprising:
- generating a representative model of an anatomical feature from an image of a patient'"'"'s anatomy;
using the model to make a virtual surgical component;
installing the virtual surgical component on the representative model of the anatomical feature by mating the surface of the component with the anatomical feature in the predefined spatial relationship;
tracking movement of the anatomical feature with a tracking system when a physical surgical component corresponding to the virtual surgical component is moved within a measurement field of the tracking system;
tracking movement of a surgical cutting instrument with the tracking system;
displaying the representative model and the surgical cutting instrument on a display of the surgical navigation system; and
guiding the surgical cutting instrument on the display to verify a cutting plane of the surgical cutting instrument relative to the anatomical feature.
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Abstract
A method of automatically registering a surgical navigation system to a patient'"'"'s anatomy is provided. The method comprises programming a surgical navigation system with a first spatial relationship between a surgical component and a reference array connected to the surgical component, programming the surgical navigation system with a second spatial relationship between an anatomical feature of a patient and the surgical component, installing the surgical component on the patient such that the surgical component engages the anatomical feature in the second spatial relationship, and locating the reference array with the surgical navigation system. The navigation system automatically recognizes the position of the reference array relative to the patient'"'"'s anatomy.
166 Citations
22 Claims
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1. A method of performing a surgical procedure aided by a surgical navigation system, comprising:
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generating a representative model of an anatomical feature from an image of a patient'"'"'s anatomy; using the model to make a virtual surgical component; installing the virtual surgical component on the representative model of the anatomical feature by mating the surface of the component with the anatomical feature in the predefined spatial relationship; tracking movement of the anatomical feature with a tracking system when a physical surgical component corresponding to the virtual surgical component is moved within a measurement field of the tracking system; tracking movement of a surgical cutting instrument with the tracking system; displaying the representative model and the surgical cutting instrument on a display of the surgical navigation system; and guiding the surgical cutting instrument on the display to verify a cutting plane of the surgical cutting instrument relative to the anatomical feature. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method of conducting navigated knee arthroplasty on a patient, comprising:
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acquiring a representation of a knee joint of the patient; creating a three-dimensional virtual model of the knee joint of the patient from the representation; identifying bony landmarks on a femur within the three-dimensional virtual model of the knee joint; developing a surgical protocol for the patient including anatomic orientation information of the femur from an analysis of the bony landmarks; tracking with an optical locator a retro-reflective marker array affixed to a handheld surgical saw; and displaying a current cut plane of the handheld surgical saw on a surgical display during surgery in reference to a planned cut plane from the surgical protocol, wherein the surgical display is located outside of a sterile field in which the handheld surgical saw is located, the current cut plane comprising a cutting path of the handheld surgical saw determined from the surgical plan. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method of performing a surgical procedure aided by a surgical navigation system, comprising:
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generating a representative model of an anatomical feature from an image of anatomy of a patient; creating a virtual representation of a patient-matched surgical component based on the representative model; displaying the virtual representation on the representative model; manipulating the representative model of the anatomical feature and the virtual representation of the patient-matched surgical component to gather surgical information using a computer-operated planning program; planning a surgical protocol from the gathered surgical information, the surgical protocol including a cutting plane disposed relative to the anatomical feature; displaying a surgical plan image from the surgical protocol and the patient-matched surgical component on a computer display, the surgical plan image including a representation of the cutting plane relative to the anatomical feature; tracking a resection plane of a surgical instrument on the computer display while displaying the patient-matched surgical component and the representative model; and performing the surgical procedure on the bone guided by at least a portion of the resection plane of the surgical instrument relative to the cutting plane of the surgical protocol displayed on the computer display including the surgical instrument and the representative model. - View Dependent Claims (18, 19, 20, 21, 22)
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Specification