transverse acetabular ligament transverse acetabular ligament the transverse acetabular ligament (transverse ligament or tunstall’s ligament) is a portion of the acetabular labrum, though differing from it in having no cartilage cells among its fibers. transverse acetabular ligamentleft hip-joint, opened by removing the floor of the acetabulum from within the pelvis. (trans. ligament labeled at center.)detailsidentifierslatinligamentum transversum acetabulita98a03.6.07.009ta21881fma43518anatomical terminology it consists of strong, flattened fibers, which cross the acetabular notch, and convert it into a foramen through which the nutrient vessels enter the joint. it is an intra-articular structure of the hip. function the transverse acetabular ligament prevents inferior displacement of head of femur. additional images hip joint. lateral view. transverse acetabular ligament hip joint. lateral view. transverse acetabular ligament