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Comparative effectiveness of open versus minimally invasive sacroiliac joint fusion

Authors Ledonio C, Polly Jr DW, Swiontkowski MF, Cummings JR J

Received 9 January 2014

Accepted for publication 20 February 2014

Published 5 June 2014 Volume 2014:7 Pages 187—193

DOI https://doi.org/10.2147/MDER.S60370

Checked for plagiarism Yes

Review by Single-blind

Peer reviewer comments 4


Charles GT Ledonio,1 David W Polly Jr,1 Marc F Swiontkowski,1 John T Cummings Jr2

1Department of Orthopaedic Surgery, University of Minnesota, Twin Cities, MN, 2Community Neurosurgical Care, Indianapolis, IN, USA

Background: The mainstay of sacroiliac joint disruption/degenerative sacroiliitis therapy has been nonoperative management. This nonoperative management often includes a regimen of physical therapy, chiropractic treatment, therapeutic injections, and possibly radiofrequency ablation at the discretion of the treating physician. When these clinical treatments fail, sacroiliac joint fusion has been recommended as the standard treatment. Open and minimally invasive (MIS) surgical techniques are typical procedures. This study aims to compare the perioperative measures and Oswestry Disability Index (ODI) outcomes associated with each of these techniques.
Methods: A comparative retrospective chart review of patients with sacroiliac joint fusion and a minimum of 1 year of follow-up was performed. Perioperative measures and ODI scores were compared using the Fisher's exact test and two nonparametric tests, ie, the Mann–Whitney U test and the Wilcoxon signed-rank test. The results are presented as percent or median with range, as appropriate.
Results: Forty-nine patients from two institutions underwent sacroiliac joint fusion between 2006 and 2012. Ten patients were excluded because of incomplete data, leaving 39 evaluable patients, of whom 22 underwent open and 17 underwent MIS sacroiliac joint fusion. The MIS group was significantly older (median age 66 [39–82] years) than the open group (median age 51 [34–74] years). Surgical time and hospital stay were significantly shorter in the MIS group than in the open group. Preoperative ODI was significantly greater in the open group (median 64 [44–78]) than in the MIS group (median 53 [14–84]). Postoperative improvement in ODI was statistically significant within and between groups, with MIS resulting in greater improvement.
Conclusion: The open and MIS sacroiliac joint fusion techniques resulted in statistically and clinically significant improvement for patients with degenerative sacroiliitis refractory to nonoperative management. However, the number of patients reaching the minimal clinically important difference and those showing overall improvement were greater in the MIS group.

Keywords: sacroiliac joint, arthrodesis, sacroiliac joint disruption, degenerative sacroiliitis


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