If the foot pronates, what happens to the femur?

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Foot pronation initiates a rotational chain through the leg: as the foot everts, the tibia tends to rotate inward. In a closed kinetic chain, that inward tibial rotation is transmitted upward, causing the femur to rotate internally to keep the knee aligned with the foot and pelvis during stance and movement. This inward coupling of rotation is the typical response to pronation, whereas external rotation would oppose the direction of the tibial turn and abduction/adduction describe side-to-side movements not primarily driven by the pronation-tibia-femur linkage.