Paragraph Number

330

As illustrated, the bone model longitudinal axis 1322 is centered vertically within the active model 1316 of the first metatarsal 208. Thus, the bone model longitudinal axis 1322 is centered within the sagittal plane 262. In addition, the bone model longitudinal axis 1322 should be centered within the transverse plane 266 and the frontal plane 264. Consequently, selection of the vertex 1320, step 6 by the user 1002, is an important step in defining the bone model longitudinal axis 1322. In fact, in embodiments that rely on the proper and accurate defining of the bone model longitudinal axis 1322, step 6 may be considered a key step. Said another way, the bone model longitudinal axis 1322 may serve as a reference feature. This reference feature may be used by one or more other aspects in the bone model 404 and/or a patient-specific device model 1072. Those of skill in the art will appreciate that if the bone model longitudinal axis 1322 is not accurate other measurements and/or steps in the workflow 1050 may also be inaccurate.

Added by DJM Jan 2024