Sacroiliac Pain Maps
Sacroiliac Joint Pain can have a variable distribution. Buttock, PSIS pain is present in 94%, lower lumbar pain in 72%, groin pain in 14%, lower extremity pain in 28%, upper lumbar in 6%, abdomen in 2%, and foot in 12%. 
Sacroiliac Posterior Ligament Pain
The pain pattern from sacroiliac ligaments depends on which ligamentous section is involved. Patients in this study were diagnosed with sacroiliac joint dysfunction with a fluoroscopically guided periarticular SIJ injection with a >70% relief of pain.  This built on their previous work.
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Sacroiliac Joint Pain
Pain maps from double diagnostic fluoroscopically guided intraarticular sacroiliac joint blocks, showing pain maps for responders vs non-responders. The referral pain areas were the same in both groups, but the intensity maps showed differences in pain referral at the buttock in areas overlying the SIJ (100% of the responders vs 80% of the nonresponders) and the ischial tuberosity(10% of the responders vs 100% of the nonresponders). Patients included if pain below L5 over one SIJ, with or without leg pain; several exclusion criteria.
Image Copyright © 2006 by National University of Health Sciences
- ↑ Vanelderen et al.. 13. Sacroiliac joint pain. Pain practice : the official journal of World Institute of Pain 2010. 10:470-8. PMID: 20667026. DOI.
- ↑ Kurosawa et al.. Referred pain location depends on the affected section of the sacroiliac joint. European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society 2015. 24:521-7. PMID: 25283251. DOI.
- ↑ Murakami et al.. Effect of periarticular and intraarticular lidocaine injections for sacroiliac joint pain: prospective comparative study. Journal of orthopaedic science : official journal of the Japanese Orthopaedic Association 2007. 12:274-80. PMID: 17530380. DOI.
- ↑ van der Wurff et al.. Intensity mapping of pain referral areas in sacroiliac joint pain patients. Journal of manipulative and physiological therapeutics 2006. 29:190-5. PMID: 16584942. DOI.