PREOPERATIVELY PLANNING AN ARTHROPLASTY PROCEDURE AND GENERATING A CORRESPONDING PATIENT SPECIFIC ARTHROPLASTY RESECTION GUIDE
First Claim
1. A method of manufacturing a custom arthroplasty resection guide, the method comprising:
- generating MRI knee coil two dimensional images, wherein the knee coil images include a knee region of a patient;
generating MRI body coil two dimensional images, wherein the body coil images include a hip region of the patient, the knee region of the patient and an ankle region of the patient;
in the knee coil images, identifying first locations of knee landmarks;
in the body coil images, identifying second locations of the knee landmarks;
running a transformation with the first and second locations, causing the knee coil images and body coil images to generally correspond with each other with respect to location and orientation.
5 Assignments
0 Petitions
Accused Products
Abstract
Methods of manufacturing a custom arthroplasty resection guide or jig are disclosed herein. For example, one method may include: generating MRI knee coil two dimensional images, wherein the knee coil images include a knee region of a patient; generating MRI body coil two dimensional images, wherein the body coil images include a hip region of the patient, the knee region of the patient and an ankle region of the patient; in the knee coil images, identifying first locations of knee landmarks; in the body coil images, identifying second locations of the knee landmarks; run a transformation with the first and second locations, causing the knee coil images and body coil images to generally correspond with each other with respect to location and orientation.
-
Citations
35 Claims
-
1. A method of manufacturing a custom arthroplasty resection guide, the method comprising:
-
generating MRI knee coil two dimensional images, wherein the knee coil images include a knee region of a patient; generating MRI body coil two dimensional images, wherein the body coil images include a hip region of the patient, the knee region of the patient and an ankle region of the patient; in the knee coil images, identifying first locations of knee landmarks; in the body coil images, identifying second locations of the knee landmarks; running a transformation with the first and second locations, causing the knee coil images and body coil images to generally correspond with each other with respect to location and orientation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
-
12. A method of manufacturing a custom arthroplasty resection guide, the method comprising:
-
preoperatively plan in a three dimensional computer environment a proposed post surgical joint geometry for a joint, wherein the proposed post surgical joint geometry is a natural alignment joint geometry that is generally representative of the joint prior to degeneration; provide a two dimensional view of the proposed post surgical joint geometry to a physician; employ feedback received from the physician regarding the two dimensional view to arrive at a finalized post surgical joint geometry that is at least one of;
a) the natural alignment joint geometry;
b) a zero degree mechanical axis alignment joint geometry, or somewhere between a) and b). - View Dependent Claims (13, 14, 15, 16)
-
-
17. A method of manufacturing a custom arthroplasty resection guide, the method comprising:
-
a) identify in a computer environment hip, knee and ankle centers in a first set of two dimensional images; b) generate in a computer environment a three dimensional knee model from a second set of two dimensional images; c) cause the three dimensional knee model and hip, knee and ankle centers to be positioned relative to each other in a global coordinate system generally as if the three dimensional knee model were generated from the first set of two dimensional images; d) preoperatively plan an arthroplasty procedure with the three dimensional knee model of step c); and e) at least one of maintain or reestablish the positional relationship established in step c) between the three dimensional knee model and the hip, knee and ankle centers to address any positional changes in the global coordinate system for the three dimensional knee model during the preoperatively planning of step d). - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35)
-
Specification