0 relating to the ischium (= the large bone in the lower part of the hip) and femur (= the long bone in the upper part of the leg):
an ischiofemoral ligament
The extracapsular ligaments are the iliofemoral, ischiofemoral, and pubofemoral ligaments attached to the bones of the pelvis (the ilium, ischium, and pubis respectively).
The ischiofemoral ligament prevents medial (internal) rotation while the pubofemoral ligament restricts abduction and internal rotation of the hip joint.
The three extracapsular ligaments of the hip joint the iliofemoral, ischiofemoral, and pubofemoral ligaments form a twisting mechanism encircling the neck of the femur.
