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Minimally invasive arthrodesis for chronic sacroiliac joint dysfunction using the SImmetry SI Joint Fusion system

Authors Miller L, Block J

Received 5 March 2014

Accepted for publication 11 April 2014

Published 7 May 2014 Volume 2014:7 Pages 125—130

DOI https://doi.org/10.2147/MDER.S63575

Checked for plagiarism Yes

Review by Single-blind

Peer reviewer comments 2


Larry E Miller,1,2 Jon E Block2

1Miller Scientific Consulting, Inc., Asheville, NC, USA; 2The Jon Block Group, San Francisco, CA, USA


Abstract: Chronic sacroiliac (SI) joint-related low back pain (LBP) is a common, yet under-diagnosed and undertreated condition due to difficulties in accurate diagnosis and highly variable treatment practices. In patients with debilitating SI-related LBP for at least 6 months duration who have failed conservative management, arthrodesis is a viable option. The SImmetry® SI Joint Fusion System is a novel therapy for SI joint fusion, not just fixation, which utilizes a minimally invasive surgical approach, instrumented fixation for immediate stability, and joint preparation with bone grafting for a secure construct in the long term. The purpose of this report is to describe the minimally invasive SI Joint Fusion System, including patient selection criteria, implant characteristics, surgical technique, postoperative recovery, and biomechanical testing results. Advantages and limitations of this system will be discussed.

Keywords: arthrodesis, fusion, minimally invasive, sacroiliac, SImmetry


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