ArticleSurgical and radiologic anatomy : SRA2017
Morphometric anatomical and CT study of the human adult sacroiliac region.
Article in Surgical and radiologic anatomy : SRA, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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Who cites it
13 citing papers in PubMed.
- Computed tomography-based assessment of sacroiliac joint variations: associations with sacral types, sex, and side.Surgical and radiologic anatomy : SRA · 2026Article
- Evaluation of Sacroiliac Joint Shape in Women with Ankylosing Spondylitis According to Mode of Birth Delivery: A Retrospective Study.Medicina (Kaunas, Lithuania) · 2024Article
- Automatic Image Segmentation and Grading Diagnosis of Sacroiliitis Associated with AS Using a Deep Convolutional Neural Network on CT Images.Journal of digital imaging · 2023Article
- Ethnic Differences in Western and Asian Sacroiliac Joint Anatomy for Surgical Planning of Minimally Invasive Sacroiliac Joint Fusion.Diagnostics (Basel, Switzerland) · 2023Article
- Article
- Anatomical variation at the sacroiliac joints in young adults: estimated prevalence by CT and concomitant diagnostics by MRI.Skeletal radiology · 2022Article
- Statistical shape modeling of multi-organ anatomies with shared boundaries.Frontiers in bioengineering and biotechnology · 2022Article
- Anatomical variations of the sacro-iliac joint: a computed tomography study.Surgical and radiologic anatomy : SRA · 2021Article
- Extra-articular Portion of the Sacroiliac Joint-Between the Sacral and Pelvic Tuberosities: An Anatomical Guide for the S2-Alar-Iliac Screw Trajectory.Global spine journal · 2021Article
- Impact of age, sex, and joint form on degenerative lesions of the sacroiliac joints on CT in the normal population.Scientific reports · 2021Article
- Axial Spondyloarthritis: Mimics and Pitfalls of Imaging Assessment.Frontiers in medicine · 2021Review
- Re-examining the Spectrum of Lumbosacral Transitional Dysmorphisms: Quantifying Joint Asymmetries and Evaluating the Anatomy of Screw Fixation Corridors.Neurospine · 2020Article
- Sacroiliac joints: anatomical variations on MR images.European radiology · 2018Article
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Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeTo identify and describe the morphometry and CT features of the articular and extra-articular portions of the sacroiliac region. The resulting knowledge might help to avoid complications in sacroiliac joint (SIJ) fusion.
methodsWe analyzed 102 dry hemi-sacra, 80 ilia, and 10 intact pelves and assessed the pelvic computerized tomography (CT) scans of 90 patients, who underwent the examination for conditions not involving the pelvis. We assessed both the posterior aspect of sacrum with regard to the depressions located externally to the lateral sacral crest at the level of the proximal three sacral vertebrae and the posteroinferior aspect of ilium. Coronal and axial CT scans of the SIJ of patients were obtained and the joint space was measured.
resultsOn each side, the sacrum exhibits three bone depressions, not described in anatomic textbooks or studies, facing the medial aspect of the posteroinferior ilium, not yet described in detail. Both structures are extra-articular portions situated posteriorly to the SIJ. Coronal CT scans of patients showing the first three sacral foramens and the interval between sacrum and ilium as a continuous space display only the S1 and S3 portions of SIJ, the intermediate portion being extra-articular. The S2 portion is visible on the most anterior coronal scan. Axial scans show articular and extra-articular portions and features improperly described as anatomic variations.
conclusionsExtra-articular portions of the sacroiliac region, not yet described exhaustively, have often been confused with SIJ. Coronal CT scans through the middle part of sacrum, the most used to evaluate degenerative and inflammatory conditions of SIJ, show articular and extra-articular portions of the region.
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