US 2015/0105698 A1 · METHOD FOR KNEE RESECTION ALIGNMENT APPROXIMATION IN KNEE REPLACEMENT PROCEDURES

Abstract

Aspects of the present disclosure involve systems, methods, computer program products, and the like, for utilizing a series of images of a patient's anatomy to determine a cut plane for use during a knee procedure. To determine a cut plane for use during a knee replacement procedure, the 2D images may be analyzed by a computer program to determine a femoral shaft axis reference line, a center of rotation of the knee, and the valley floor of the condyle notch. With these landmarks identified in the images, a cut plane through the femur for use during a TKA procedure may be determined. Further, the location of these features in the images may be determined by analyzing the gray scale value of one or more pixels around a selected point on the image. The pixel with the lowest gray scale value may then be assumed to be the edge of the cortical bone in the 2D image.

Claims20

Dependent claims

A system for processing a medical scan of a patient, the system comprising:

a network interface configured to receive one or more medical images of a patient's anatomy;
a processing device in communication with the network interface;
and
a computer-readable medium in communication with the processing device configured to store information and instructions that, when executed by the processing device, performs the operations of:
receiving the one or more medical images of the patient's anatomy from an imaging device;
obtaining a reference point on at least one of the medical images, the at least one medical image comprising a plurality of pixels;
associating the reference point to a reference pixel from the plurality of pixels of the at least one medical image;
creating a first range of pixels from the plurality of pixels of the at least one medical image corresponding to the reference pixel, wherein each pixel in the first range of pixels comprises a gray scale value;
determining the pixel in the first range of pixels with the lowest gray scale value;
and
setting the determined pixel in the first range of pixels with the lowest gray scale value as a location of a bone edge in the at least one medical image.

8 more elements

Dependencies are inferred from the claim text.

Method for knee resection alignment approximation in knee replacement procedures

Life of this patent

Method for knee resection alignment approximation in knee replacement procedures

Life of this patent

Abstract

Claims20