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About iFuse

A minimally invasive surgical option for the SI joint

The iFuse Implant System was developed as a minimally invasive surgical option for patients who have failed non-surgical options for some causes of sacroiliac joint pain. Over the last several years more than 15,000 procedures have been performed and over 900 surgeons have been trained to provide this option for their patients.

SI Joint Fusion with the iFuse Implant System®

The iFuse Implant System is intended for sacroiliac joint fusion for conditions including sacroiliac joint dysfunction that is a direct result of sacroiliac joint disruptions and degenerative sacroiliitis.

About the Surgery

Sacroiliac (SI) joint fusion is a surgical procedure performed in an operating room, with either general or spinal anesthesia. You will be lying down during the surgery while your surgeon uses a specially designed system to guide the instruments that prepare the bone and insert the implants. Both the surgical technique and the iFuse Implant System are designed to offer the maximum protection to your surrounding tissues.

The entire procedure is performed through a small incision (approximately 2-3cm long), along the side of your buttock. During the procedure, fluoroscopy provides your surgeon with live imaging during the procedure to facilitate proper placement of the implants. Fluoroscopy is an imaging technique commonly used by physicians to obtain real-time moving images of internal structures using X-rays. Normally three implants will be used, depending on your size. The procedure takes about an hour.

Following the Surgery

At discharge, your surgeon will arrange follow-up visits to assess your progress, health status (including the status of your incision) and may take additional images of your surgical site.

Potential iFuse benefits

  • Minimally invasive surgical (MIS) approach is less invasive than traditional SI joint surgery
  • Triangular implant profile minimizes rotation and an interference fit minimizes micromotion
  • Designed specifically to stabilize and fuse the heavily loaded SI joint
  • Rigid titanium construction and implant geometry provide immediate stabilization
  • No conflicts with lumbar fusion devices

 Clinical results

Research reported in Open Orthopaedics Journal, on 50 patients that underwent the SI joint fusion procedure with the iFuse Implant System®, found early and sustained positive outcomes, and the complication rate was low. In this study, patients were contacted after surgery to assess SIJ pain, satisfaction and work status. The patients reported significant improvements in 7 out of 9 categories of daily living. Moreover, 82% of patients were satisfied 40 months after the surgery, and they said they would undergo the same surgery again. It’s notable that “13 patients who were out of work were able to return to work.”1


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