Paragraph Number

239

Next, the deformity module 1220 may identify a reference axis 1229 perpendicular with one of the center longitudinal axes 1228a,b, such as center longitudinal axis 1228b. The reference axis 1229 may be at or near a joint between bones of the bone model 1204. The deformity module 1220 may determine that a deformity 1226 exists if the center longitudinal axes 1228a,b are not parallel or are not parallel when measured with a predefined margin for error. Figure 13A illustrates a bone model 1204 with a deformity 1226. The deformity 1226 is that the first metatarsal is not parallel or not sufficiently parallel to the second metatarsal at the joint between the first metatarsal and the medial cuneiform bones. Once the deformity 1226 is determined, the deformity module 1220 or apparatus 1202 may determine what steps, procedures, or instrumentation can be used to correct the deformity 1226. The deformity module 1220 may use a name, label, tag, or other identifier for a particular deformity 1226.

Added by DJM Jan 2024