posterior sacroiliac ligaments

pos·te·ri·or sa·cro·il·i·ac lig·a·ments

[TA]
the heavy fibrous bands that pass from the ilium to the sacrum posterior to the sacroiliac joint.
References in periodicals archive ?
Additional posterior support is provided by the anterior and posterior sacroiliac ligaments, along with the iliolumbar ligaments, which connect the transverse processes of the L5 vertebral body to the iliac crest.
the area forming the synovial joint) and the unique morphologic features created by the anterior and posterior sacroiliac ligaments, but chiefly by the stout interosseous ligaments, stabilize the joint by strictly limiting planar (gliding) movement [36,38].

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