Accessory sacroiliac joint
Last revised by Rania Adel Anan
on 17 Aug 2023
Citation, DOI, disclosures and article data
Citation:
Knipe H, Anan R, Accessory sacroiliac joint. Reference article, Radiopaedia.org (Accessed on 20 Mar 2025) https://doi.org/10.53347/rID-58401
rID:
58401
Article created:
Disclosures:
At the time the article was created Henry Knipe had no recorded disclosures.
View Henry Knipe's current disclosures
Last revised:
17 Aug 2023,
Rania Adel Anan
Disclosures:
At the time the article was last revised Rania Adel Anan had no financial relationships to ineligible companies to disclose.
View Rania Adel Anan's current disclosures
Revisions:
2 times, by
2 contributors -
see full revision history and disclosures
Systems:
Sections:
Synonyms:
- Accessory sacroiliac joints (ASIJ)
- Accessory sacro-iliac joints
Accessory sacroiliac joints are a common finding, present on ~15% (range 13-17.5%) of CT studies, and may be unilateral or bilateral. They are an articulation between the medial aspect of the posterior superior iliac spine and the sacrum just lateral to the second dorsal sacral foramen. They may be congenital (diarthrodial joint) or more commonly acquired (fibrocartilaginous joint) in origin.
References
- 1. S Ehara, GY el-Khoury, RA Bergman. The accessory sacroiliac joint: a common anatomic variant. (2012) American Journal of Roentgenology. 150 (4): 857-9. doi:10.2214/ajr.150.4.857 - Pubmed
- 2. Terry R. Yochum, Lindsay J. Rowe. Yochum and Rowe's Essentials of Skeletal Radiology. (2018) ISBN: 9780781739467
- 3. R. Shane Tubbs, Mohammadali M. Shoja, Marios Loukas. Bergman's Comprehensive Encyclopedia of Human Anatomic Variation. (2016) ISBN: 9781118430682
Incoming Links
Related articles: Anatomy: Spine
-
osteology
- vertebrae
- spinal canal
- cervical spine
- thoracic spine
- lumbar spine
- sacrum
- coccyx
-
anatomical variants
- vertebral body
- neural arch
- transitional vertebrae
- ossicles
- ossification centres
- intervertebral disc
- articulations
- ligaments
- musculature of the vertebral column
- muscles of the neck
- muscles of the back
-
suboccipital muscle group
- rectus capitis posterior major muscle
- rectus capitis posterior minor muscle
- obliquus capitis superior muscle
- obliquus capitis inferior muscle
- splenius capitis muscle
- splenius cervicis muscle
- erector spinae group
- transversospinalis group
- quadratus lumborum muscle
-
suboccipital muscle group
- spinal meninges and spaces
-
spinal cord
- gross anatomy
-
white matter tracts (white matter)
- corticospinal tract
- anterolateral columns
- lateral columns
-
dorsal columns
- fasiculus gracilis (column of Goll)
- fasiculus cuneatus (column of Burdach)
- grey matter
- nerve root
- central canal
- functional anatomy
- spinal cord blood supply
- sympathetic chain
Unable to process the form. Check for errors and try again.