abnormal ligament morphology abnormal iliofemoral ligament morphology 2018-09-20T08:19:58Z MPheno.ontology MP:0030784 any structural anomaly of the strong triangular ligament that is attached by its apex to the anterior inferior spine of the ilium and acetabular margin and by its base to the intertrochanteric line of the femur; it stabilizes the hip joint and limits extension and lateral rotation of the hip abnormal Y-ligament morphology abnormal ligamentum iliofemorale morphology abnormal Bigelow ligament morphology abnormal hip joint morphology