CLINICAL TRIAL
JOURNAL ARTICLE
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The therapeutic efficacy of sacroiliac joint blocks with triamcinolone acetonide in the treatment of sacroiliac joint dysfunction without spondyloarthropathy.

Spine 2009 April 21
STUDY DESIGN: Prospective case series.

OBJECTIVE: The study aimed to investigate the therapeutic efficacy of sacroiliac joint (SIJ) blocks with triamcinolone acetonide in patients with SIJ pain without spondyloarthropathy.

SUMMARY OF BACKGROUND DATA: Numerous studies have demonstrated that SIJ blocks with corticosteroid/anesthetic provide long-term pain relief in seronegative spondyloarthropathy. However, only one report on SIJ dysfunction patients without spondyloarthropathy shows promising results.

METHODS: We conducted a prospective observational study of patients at a University Spine Center from March 2005 to May 2006. The above mentioned SIJ blocks were performed in 150 patients, and dual SIJ blocks confirmed SIJ pain in 39 patients (26%).

RESULTS: Twenty-six patients (66.7%) experienced significant pain reduction for more than 6 weeks; the overall mean duration of pain reduction in these responders was 36.8 +/- 9.9 weeks. SIJ blocks were ineffective in 13 patients (33.3%); the mean duration of pain reduction in these patients was 4.4 +/- 1.8 weeks. Univariate analysis revealed that treatment failure was significantly associated with a history of lumbar/lumbosacral fusion (P = 0.03).

CONCLUSION: SIJ blocks with triamcinolone acetonide are beneficial for some patients with SIJ pain without spondyloarthropathy. The SIJ blocks showed a long-lasting efficacy in two-thirds of the patients; however, the duration of its efficacy was shorter in patients with a history of lumbar/lumbosacral fusion. These findings suggest the need for further studies.

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