Patent ID: 11903651
Assignee: ZIMMER, INC.
Field: Medical technology (Instruments)
Classification: CPC A  G | IPC A  G

Claim 13:
14. A pre-operative planning system comprising:
a computing device including a processor circuit coupled to a memory device, the memory device including instructions that, when executed by the processor circuit, cause the computing device to perform operations comprising:
obtaining prosthesis data for a selected prosthesis;
generating anatomical data and deformity data for a specific patient, wherein the anatomical data and deformity data are represented within a leg model, wherein anatomical data describes anatomical features of intact bone and deformity data describes anatomical features of non-intact bone and wherein generating anatomical data includes determining a varus-valgus pivot point for an intact condyle;
determining position of one or more bone cuts based on the selected prosthesis, the anatomical data and the deformity data; and
outputting a patient specific surgical guide to enable the surgeon to place the one or more cuts in determined positions and orientations along anatomical planes and at determined depths, wherein determining the varus-valgus pivot point includes fitting a circle to a portion of the anterior-posterior curve and determining a center point of the circle.