Paragraph Number

230

In one embodiment, the user instructions 604 may designate a particular material and/or mass for fabricating one or more guides to be included in the patient-specific system 606. Some surgeons may find that patient-specific instruments, such as a patient-specific resection guide may more readily register to one or more bone surfaces if the instrument has a greater mass and/or weight. With the greater mass and a sufficient fidelity bone engagement surface, a patient-specific instrument may seem to find its own way or seek out a desired position on a bone that matches or substantially matches a position planned when the patient-specific system 606 was developed. Consequently, a surgeon may request in the user instructions 604 that the instrument be made from a metal such as titanium.

Added by DJM Jan 2024