The joints these hip adductor muscles cross over the hip (coxal) joint and knee (tibiofemoral) joint

Gracilis cross over the hip (coxal) joint and knee (tibiofemoral) joint

The gracilis muscles cross over the hip and knee joints.   You’ll note from Drawing 6.76 how the Gracilis extends from the hip bone (pubis) crossing over the hip joint (coxal joint) and down and over the knee joint (tibiofemoral joint) and connects to the tibia (skin bone).    The Gracilis is the only hip adductor that crosses the knee joint (figure 6.75).    The gracilis also acts to flex the leg as well as medial rotate and adduct the thigh like the other adductor group muscles.

 

Pectineus, adductor longus, adductor brevis, and adductor magnus over the hip (coxal) joint

The pectineus, adductor longus, adductor brevis, and adductor magnus tuck behind the quadriceps group of muscles and they fan out towards the thigh bone (femur) crossing over the hip joint (coxal joint) from the hip bone (pubis).

 

As the adductors attach on the posterior femur, it seems as though they would rotate the hip (coxal) joint laterally rather than medially.  If the femur is already medially rotated, all of the adductors will help to rotate it more medially; if the femur is laterally rotated, some of the adductors will laterally rotate.