US-based medical device company Zyga Technology has reported positive results from its study of the SImmetry Sacroiliac (SI) Joint Fusion with decortication.
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The SImmetry Sacroiliac Joint Fusion System has been developed as a minimally invasive procedure to be used for conditions such as sacroiliac joint disruptions and degenerative sacroiliitis.
It involves three steps to achieve SI joint fusion without affecting the muscles and ligaments surrounding the SI joint, which are decortication, bone grafting and fixation.
Decortication procedure prepares the bone surface to stimulate the body’s natural healing response while bone grafting fills the space between bones and fixation involves the placing of threaded implants to keep the joint fixed during the healing process.
Zyga’s prospective, multi-centre study involved 19 patients who had a CT scan done 12 and 24 months after undergoing minimally invasive SI joint fusion with decortication and bone grafting.
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Review of the CT scans after 12 months of the procedure reported achieving fusing in 74% of patients along with a decrease in back pain in 72% of patients.
Study lead author and Mayo Clinic orthopedic trauma surgeon Dr William Cross said: "Minimally Invasive SI joint fusion has been established as an effective treatment for certain patients suffering from SI joint disorders, but many technologies available today do not follow the accepted orthopedic principles that lead to successful long-term fusion.
"For me, it is common sense that SI joint fusion should include decortication and bone grafting to achieve long-term success.
“The results of this study provide compelling evidence that decortication and bone grafting may contribute to earlier fusion, and that the procedure provides significant pain relief at one year post-op."
The 24 month result of the CT scan review is expected to be released early next year.
Image: SImmetry Sacroiliac Joint Fusion System. Photo: courtesy of Zyga Technology, Inc.
