License Image The sacroiliac joint is the synovial joint between the ilium of the hip bone, and the sacrum. These interconnecting bones fit snugly together, allowing very little movement, and supporting the weight bearing function of the pelvis. In advanced age the cavity between the bones may disappear altogether, becoming fibrous or the bones fused. […]
pelvis ligaments
Sacrotuberous Ligament
License Image The sacrum is connected to the ischium of the hip bone by the sacrotuberous and sacrospinous ligaments. The posterior sacroiliac ligament blends with the fibers of the sacrotuberous ligament which attaches from the sacrum to the ischial tuberosity.
Ligaments of the Pelvis
License Image Ligaments of the posterior hip bone and and sacrum. Both the interosseus sacroiliac ligament and the posterior sacroiliac ligaments support the sacroiliac joint. The posterior sacroiliac ligament blends with the fibers of the sacrotuberous ligament which attaches from the sacrum to the ischial tuberosity.