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Pain Med. 2004 Mar;5(1):26-32.

Inciting events initiating injection-proven sacroiliac joint syndrome.

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Penn Spine Center, Department of Rehabilitation Medicine, University of Pennsylvania Health System, Philadelphia, Pennsylvania 19104, USA.



To determine the inciting events leading to the development of sacroiliac joint syndrome (SIJS).


This was a retrospective descriptive cohort series from an academic interdisciplinary spine center. Consecutive patients presenting with low back or buttock pain with or without leg symptoms who met specific inclusion and exclusion criteria for the diagnosis of SIJS were included in the study. Inciting events leading to the development of SIJS in these patients were categorized into traumatic, cumulative, and idiopathic events.


Of 194 patients who were included in the study, 54 patients had symptom resolution with one or more therapeutic intraarticular sacroiliac joint injections, following a positive diagnostic injection. Those patients were given the diagnosis of SIJS. Of these, 24 (44%) had had a traumatic event (13 motor vehicle accidents, six falls onto the buttock, three immediately postpartum, one severe football tackle, and one pelvis fracture). Eleven (21%) patients were considered to have a cumulative injury (four lifting, two running, three altered gait due to lower extremity disorder, one crew training injury, and one forceful hip extension injury). Nineteen (35%) patients had spontaneous or idiopathic onset of sacroiliac joint pain.


SIJS can occur following a traumatic event or cumulative shear events, or can occur spontaneously.

[Indexed for MEDLINE]

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