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Book

Sacroiliitis

Benjamin K. Buchanan  1 , Matthew A. Varacallo  2
In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2026 Jan.
.
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Book

Sacroiliitis

Benjamin K. Buchanan et al.
Free Books & Documents

Excerpt

Sacroiliitis is an inflammation of the sacroiliac joint (SI), usually resulting in pain. Often it is a diagnosis of exclusion. The sacroiliac joint (SI) is one of the largest joints in the body and is a common source of the buttock and lower back pain. It connects the bones of the ilium to the sacrum. Sacroiliitis can be particularly difficult to diagnose because its symptoms are similar to many other common sources of back pain. It often is overlooked as a source of back or buttock pain. Pain from this condition often is due to chronic degenerative causes yet relatively uncommon. Sacroiliitis can be secondary to rheumatic, infectious, drug-related, or oncologic sources. Some specific examples of non-degenerative conditions that can lead to sacroiliitis are ankylosing spondylitis, psoriatic arthropathy, Bechet disease, hyperparathyroidism, and various pyogenic sources.

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Conflict of interest statement

Disclosure: Benjamin Buchanan declares no relevant financial relationships with ineligible companies.

Disclosure: Matthew Varacallo declares no relevant financial relationships with ineligible companies.

References

    1. Slobodin G, Hussein H, Rosner I, Eshed I. Sacroiliitis - early diagnosis is key. J Inflamm Res. 2018;11:339-344. - PMC - PubMed
    1. Chahal BS, Kwan ALC, Dhillon SS, Olubaniyi BO, Jhiangri GS, Neilson MM, Lambert RGW. Radiation Exposure to the Sacroiliac Joint From Low-Dose CT Compared With Radiography. AJR Am J Roentgenol. 2018 Nov;211(5):1058-1062. - PubMed
    1. Gutierrez M, Rodriguez S, Soto-Fajardo C, Santos-Moreno P, Sandoval H, Bertolazzi C, Pineda C. Ultrasound of sacroiliac joints in spondyloarthritis: a systematic review. Rheumatol Int. 2018 Oct;38(10):1791-1805. - PubMed
    1. Kocak O, Kocak AY, Sanal B, Kulan G. Bilateral Sacroiliitis Confirmed with Magnetic Resonance Imaging during Isotretinoin Treatment: Assessment of 11 Patients and a Review of the Literature. Acta Dermatovenerol Croat. 2017 Oct;25(3):228-233. - PubMed
    1. Pandita A, Madhuripan N, Hurtado RM, Dhamoon A. Back pain and oedematous Schmorl node: a diagnostic dilemma. BMJ Case Rep. 2017 May 22;2017 - PMC - PubMed

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