Where is the tibial low point located and why is it significant to CORI registration?

Where is the tibial low point located and why is it significant to CORI registration?

• A. Location: anterior tibial tubercle; Significance: guides ridge.
• B. Location: posterior tibial condyle; Significance: critical for system calculations.
• C. Location: intercondylar eminence ridge; Significance: rotation.
• D. Location: most concave part of the tibial plateau; Significance: used to calculate the resection depth during the Implant Planning stage.

Answer: (D)

The main idea is how the CORI planning system references the tibia to set the cut depth. The tibial low point is the most concave, deepest part of the tibial plateau, and it serves as the standard reference for determining how deep to resect the tibia during implant planning. By anchoring the resection to this point, the surgeon (and the planning software) can ensure the tibial tray sits properly, preserves adequate bone stock, and achieves the correct overall joint geometry and implant thickness. The other landmarks mentioned don’t provide this specific basis for calculating the resection depth or aligning the tibial component within CORI’s planning workflow.

The main idea is how the CORI planning system references the tibia to set the cut depth. The tibial low point is the most concave, deepest part of the tibial plateau, and it serves as the standard reference for determining how deep to resect the tibia during implant planning. By anchoring the resection to this point, the surgeon (and the planning software) can ensure the tibial tray sits properly, preserves adequate bone stock, and achieves the correct overall joint geometry and implant thickness. The other landmarks mentioned don’t provide this specific basis for calculating the resection depth or aligning the tibial component within CORI’s planning workflow.