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Definition
By Mayo Clinic staff
Sacroiliitis (sa-kro-il-ee-EYE-tis) is an inflammation of one or both of your sacroiliac joints, which connect your lower spine and pelvis. Sacroiliitis can cause pain in your buttocks or lower back, and may even extend down one or both legs. The pain associated with sacroiliitis is often aggravated by prolonged standing or by stair climbing.
Sacroiliitis has been linked to a group of diseases called spondyloarthropathies, which cause inflammatory arthritis of the spine. Sacroiliitis can be difficult to diagnose, because it may be mistaken for other causes of low back pain. Treatment of sacroiliitis may involve a combination of rest, physical therapy and medications.
- Isaac Z, et al. Sacroiliac joint dysfunction. In: Frontera WR, et al. Essentials of Physical Medicine and Rehabilitation. 2nd ed. Philadelphia, Pa.: Saunders Elsevier; 2008. http://www.mdconsult.com/das/book/body/199872655-3/994114554/1678/50.html#4-u1.0-B978-1-4160-4007-1..50049-3_767. Accessed May 6, 2010.
- Williams KD, et al. Injection studies. In: Canale ST, et al. Campbell's Operative Orthopaedics. 11th ed. Philadelphia, Pa.: Mosby Elsevier; 2007. http://www.mdconsult.com/das/book/body/199872655-4/0/1584/296.html?tocnode=55688040&fromURL=296.html#4-u1.0-B978-0-323-03329-9..50042-8--cesec38_1984. Accessed May 6, 2010.
- van der Linden, et al. Ankylosing spondylitis: Pathology. In: Firestein GS, et al. Kelley's Textbook of Rheumatology. 8th ed. Philadelphia, Pa.: W.B. Saunders Co.; 2008. http://www.mdconsult.com/das/book/body/199988049-3/994442372/1807/513.html#4-u1.0-B978-1-4160-3285-4..10070-1--s0200_2539. Accessed May 7, 2010.
- Anderson BC. Evaluation of the adult with hip pain. http://www.uptodate.com. Accessed May 7, 2010.
- Inman RD. The spondyloarthropathies. In: Goldman L, et al. Cecil Medicine. 23rd ed. Philadelphia, Pa.: Saunders Elsevier; 2007. http://www.mdconsult.com/das/book/body/199988049-4/994442372/1492/1025.html#4-u1.0-B978-1-4160-2805-5..50291-3--cesec7_12895. Accessed May 7, 2010.
- Chang-Miller A (expert opinion). Mayo Clinic, Scottsdale/Phoenix, Ariz. May 17, 2010.
- Cohen SP, et al. Randomized placebo-controlled study evaluating lateral branch radiofrequency denervation for sacroiliac joint pain. Anesthesiology. 2008;109:279.
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