How many degrees of posterior slope is built into the Legion Tibia Baseplate (FEMALE)?

• A. 3 degrees
• B. 0 degrees
• C. 4 degrees
• D. 2 degrees

Answer: (B)

Posterior slope describes how much the top surface of the tibial baseplate tilts toward the back. This tilt influences knee bending, how the femur moves on the tibia, and the overall balance of the knee during flexion.

The Legion Tibia Baseplate in the female design is built with no posterior tilt, meaning zero degrees of built-in posterior slope. This neutral, flat top lets the surgeon rely on the rest of the implant system to set the knee’s sagittal alignment, preserving natural flexion mechanics and avoiding unintended changes to the knee’s stability or rollback. If there were a built-in slope, it would alter the knee’s biomechanics and is not how this baseplate is specified.