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PREOPERATIVELY PLANNING AN ARTHROPLASTY PROCEDURE AND GENERATING A CORRESPONDING PATIENT SPECIFIC ARTHROPLASTY RESECTION GUIDE

  • US 20110214279A1
  • Filed: 04/13/2011
  • Published: 09/08/2011
  • Est. Priority Date: 12/18/2007
  • Status: Active Grant
First Claim
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1. A method of manufacturing a custom arthroplasty resection guide, the method comprising:

  • generating a three dimensional femur bone model from MRI knee coil two dimensional images, wherein the knee coil images include a knee region of a patient;

    identifying a hip center and a femur knee center in MRI body coil two dimensional images, wherein the body coil images include a hip region of the patient and the knee region of the patient;

    causing the three dimensional femur bone model and hip center and femur knee center to generally correspond with each other with respect to location and orientation;

    defining relative to the three dimensional femur bone model a femoral mechanical axis via the femur knee center and the hip center;

    identifying a most distal condylar point of the three dimensional femur bone model;

    defining a distal plane that is orthogonal to the femoral mechanical axis in a coronal view of the three dimensional femur bone model, wherein the distal plane also passes through the most distal condylar point;

    defining a resection plane that is parallel to the distal plane and proximally offset from the distal plane; and

    using data associated with the resection plane to define a resection guide in the custom arthroplasty resection guide.

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