System and method for image segmentation in generating computer models of a joint to undergo arthroplasty

摘要

A custom arthroplasty guide and a method of manufacturing such a guide are disclosed herein. The method of manufacturing the custom arthroplasty guide includes: a) generating medical imaging slices of the portion of the patient bone; b) identifying landmarks on bone boundaries in the medical imaging slices; c) providing model data including image data associated with a bone other than the patient bone; d) adjusting the model data to match the landmarks; e) using the adjusted model data to generate a three dimensional computer model of the portion of the patient bone; f) using the three dimensional computer model to generate design data associated with the custom arthroplasty guide; and g) using the design data in manufacturing the custom arthroplasty guide.

主权项

1. A method of generating design data associated with a custom arthroplasty guide, the method comprising:
receiving patient data associated with a portion of a patient bone having a surface contour of an arthroplasty target area, the patient data captured using a medical imaging system; generating a model of the portion of the patient bone from golden bone data that has been modified using the patient data, the golden bone data being associated with an exemplary bone other than the patient bone; and generating arthroplasty guide design data from the model using a processor, the arthroplasty guide design data including a mating region having a surface contour that is generally a negative of the surface contour of the arthroplasty target area such that the surface contour of the mating region is configured to matingly receive the surface contour of the arthroplasty target area in a generally matching or interdigitating manner.