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 ?
Additionally, the MRI revealed a disruption of the anterior sacroiliac ligaments on the left side and no affection of the posterior sacroiliac ligaments, the sacrotuberal and sacrospinal ligaments (Figures 1(c) and 1(d)).
c) Axial MRI revealed ruptured left anterior sacroiliac ligaments and intact posterior sacroiliac ligaments (arrows).
The long and short posterior sacroiliac ligaments, the interosseous ligaments within the sacroiliac joints and the sacrotuberous ligaments all resist forces leading to vertical translation between the ilia and the sacrum.
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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