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SI Joint Ligaments

Interosseous SI ligament located between tuberosities of sacrum and ilium
Sacrospinous ligmaent attachments lateral margins of sacrum and coccyx to ischial spine
Sacrospinous ligament checks: nutation
Sacrotuberous ligament attachments pelvic surface of sacrum to ischial tuberosity
Sacrotuberous ligament restricts: restricts sacral nutation
Posterior SI ligament attachments PSIS to sacrum
Posterior SI ligament checks counternutation
Iliolumbar ligament attachments L5 transverse process to iliac crests and interosseous ligament
Iliolumbar ligament resists: resists lateral flexion (sidebending) and translation of sacrum
Anterior SI ligament attachments Anterior thickening of SI joint capsule
Anterior SI ligament resists: resists vertical translation and joint distraction
Created by: elvis82