Inciting events initiating injection-proven sacroiliac joint syndrome.
OBJECTIVE
To determine the inciting events leading to the development of sacroiliac joint syndrome (SIJS).


METHODS
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.


RESULTS
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.


CONCLUSIONS
SIJS can occur following a traumatic event or cumulative shear events, or can occur spontaneously.
Penn Spine Center, Department of Rehabilitation Medicine, University of Pennsylvania Health System, Philadelphia, Pennsylvania 19104, USA.
Larry H
LH
Chou
Curtis W
CW
Slipman
Sarjoo M
SM
Bhagia
Larissa
L
Tsaur
Atul L
AL
Bhat
Zacharia
Z
Isaac
Russell
R
Gilchrist
Omar H
OH
El Abd
David A
DA
Lenrow
D000328:Adult; D000368:Aged; D000700:Analgesics / Q000008:administration & dosage; D001168:Arthritis / Q000175:diagnosis* / Q000188:drug therapy / Q000209:etiology; D015331:Cohort Studies; D005260:Female; D005471:Fluoroscopy / Q000379:methods; D006801:Humans; D007270:Injections, Intra-Articular; D017116:Low Back Pain / Q000175:diagnosis / Q000188:drug therapy / Q000209:etiology; D008297:Male; D008875:Middle Aged; D010147:Pain Measurement / Q000187:drug effects / Q000379:methods; D012189:Retrospective Studies; D012446:Sacroiliac Joint / Q000187:drug effects / Q000473:pathology*
D000700:Analgesics