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SI Joint Fixation With The iFuse Implant System™ Fact Sheet

The Condition: SI Joint Symptoms

The Sacroiliac (SI) Joint is located at the base of the spine and connects the tailbone to the pelvis. This joint can become damaged either due to normal wear and tear over time, or through injury. When this happens, it can cause pain and discomfort from the lower back down to the lower buttock region and the upper leg. Such symptoms can result in debilitation and a lower quality of life.

According to published scientific literature, up to 25% of all low back symptoms are SI Joint in origin1 – but the diagnosis of a problem with the SI Joint is frequently overlooked because low back symptoms have many causes. In fact, many patients with disabling low back issues go on to receive lumbar spinal treatments, though the source of their symptoms may be SI Joint dysfunction, either in whole or in part, leaving these patients with little or, in some cases, no relief.

SI Joint Symptoms and Diagnostic Methods

A variety of tests performed during physical examination may help reveal the SI Joint as the cause of low back symptoms. In addition, X-rays, CT-scan or MRI can be helpful in the diagnosis as well. However, the most relied upon method to accurately determine whether the SI Joint is the cause of low back symptoms is to inject the SI Joint with a local anesthetic. The injection is delivered with either fluoroscopic or CT guidance to verify accurate placement of the needle in the SI Joint. If symptoms are significantly decreased, it can be concluded that the SI Joint is either the source, or a major contributor to the low back symptoms.

iFuse SI Joint Fixation Procedure

SI Joint Fixation with the iFuse Implant System is a minimally invasive, orthopaedic treatment that stabilizes the SI Joint by inserting three small titanium implants surgically across the SI Joint.

iFuse Benefits

  • Less invasive than traditional open surgery
  • No extensive soft tissue stripping
  • Minimal incision size
  • Minimal tendon irritation
  • Reduced risk of infection
  • Decreased length of stay

The iFuse procedure typically takes about one hour and requires an overnight hospital stay. The procedure can be done using either local or general anesthesia. The surgeon will determine the most appropriate method based on the patient’s overall condition.

While major complications from the iFuse procedure are rare, like any surgery, there are always some risks. Postoperative bruising and local swelling are part of the expected surgical recovery. Another possible complication is infection, which can occur with any interventional procedure. To reduce the risk of infection with the iFuse procedure, antibiotics are used before and after the surgery.

SI-BONE, Inc. (San Jose, California) is a leading spinal medical device company dedicated to diagnosing and treating patients with low back issues related to sacroiliac (SI) joint pathology. The company has developed and is manufacturing and marketing less invasive implants for SI Joint pathology. SI-BONE has an experienced management team with extensive experience in spine medical devices. The company’s goal is to help surgeons improve lives through its proprietary technology.

For more information on the iFuse Implant System™, go to www.si-bone.com.

  1. Cohen, Steven P. Sacroiliac joint pain: a comprehensive review of anatomy, diagnosis, and treatment. Anesthesia and analgesia. 2005 Nov; 5(101): 1440-53.

© 2010 SI-BONE, Inc. All Rights Reserved. 8013.021210
iFuse Implant System and SI-BONE are registered trademarks of SI-BONE, Inc.

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