Sacrospinous ligament
Citation, DOI, disclosures and article data
Citation:
Knipe H, Ranchod A, Weerakkody Y, et al. Sacrospinous ligament. Reference article, Radiopaedia.org (Accessed on 24 Mar 2025) https://doi.org/10.53347/rID-29755
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rID:
29755
Article created:
Disclosures:
At the time the article was created Henry Knipe had no recorded disclosures.
View Henry Knipe's current disclosures
Last revised:
Disclosures:
At the time the article was last revised Ashesh Ishwarlal Ranchod had no financial relationships to ineligible companies to disclose.
View Ashesh Ishwarlal Ranchod's current disclosures
Revisions:
14 times, by
11 contributors -
see full revision history and disclosures
Systems:
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Synonyms:
- Sacrospinous ligaments
The sacrospinous ligament is a stabilizer of the sacroiliac joint and connects the bony pelvis to the vertebral column.
Gross anatomy
The sacrospinous ligament is a triangular-shaped structure with its base attached to the anterior sacrum (S2-S4) and coccyx, and its apex attached to the ischial spine. It forms a boundary of the greater and lesser sciatic foramen.
Relations
- anteriorly: coccygeus muscle 3
- posteriorly: sacrotuberous ligament, crossed by internal pudendal vessels and nerves
- superiorly: upper margin forms the lower border of the greater sciatic foramen
- inferiorly: lower margin forms part of upper border of the lesser sciatic foramen
Quiz questions
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References
- 1. Gray's basic anatomy. Churchill Livingstone. ISBN:1455710784. Read it at Google Books - Find it at Amazon
- 2. Cramer GD, Darby SA. Clinical Anatomy of the Spine, Spinal Cord, and ANS. Mosby. ISBN:B00DJFPM6A. Read it at Google Books - Find it at Amazon
- 3. Mcminn. Last's Anatomy. ISBN: 9780729537520
Incoming Links
Articles:
- Coccyx
- Anococcygeal nerve
- Coccygeus muscle
- Pudendal nerve
- Uterosacral ligament
- Sacroiliac joint
- Greater sciatic notch
- Ischium
- Internal pudendal artery
- Lesser sciatic foramen
- Open book pelvic injury
- Greater sciatic foramen
- Sacrum
- Lesser sciatic notch
- Levator ani muscle
- Superior gemellus muscle
- Internal pudendal vein
- Sacrotuberous ligament
Cases:
Multiple choice questions:
Related articles: Anatomy: Abdominopelvic
- skeleton of the abdomen and pelvis
- muscles of the abdomen and pelvis
- spaces of the abdomen and pelvis
- anterior abdominal wall
- posterior abdominal wall
- abdominal cavity
- pelvic cavity
- perineum
- abdominal and pelvic viscera
- gastrointestinal tract
- spleen
- hepatobiliary system
-
endocrine system
-
adrenal gland
- adrenal vessels
- chromaffin cells
- variants
- pancreas
- organs of Zuckerkandl
-
adrenal gland
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urinary system
-
kidney
- renal pelvis
- renal sinus
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variants
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- ureter
- urinary bladder
- urethra
- embryology
-
kidney
- male reproductive system
-
female reproductive system
- vulva
- vagina
- uterus
- adnexa
- Fallopian tubes
- ovaries
- broad ligament (mnemonic)
- variant anatomy
- embryology
- blood supply of the abdomen and pelvis
- arteries
-
abdominal aorta
- inferior phrenic artery
- celiac artery
- superior mesenteric artery
- middle suprarenal artery
- renal artery (variant anatomy)
- gonadal artery (ovarian artery | testicular artery)
- inferior mesenteric artery
- lumbar arteries
- median sacral artery
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common iliac artery
- external iliac artery
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internal iliac artery (mnemonic)
- anterior division
- umbilical artery
- superior vesical artery
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- vaginal artery
- inferior vesical artery
- uterine artery
- middle rectal artery
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internal pudendal artery
- inferior rectal artery
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perineal artery
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- transverse perineal artery
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abdominal aorta
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sacral plexus
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- autonomic ganglia and plexuses
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