Sacroiliac Joint Fusion With iFuse Implant System (SIFI)

Completed

Conditions studied: Degenerative Sacroiliitis, Sacroiliac Joint Disruption

In brief

The purpose of this study is to evaluate the use of the iFuse Implant System to treat degenerative sacroiliitis (arthritis of the SI joint) and sacroiliac disruption (abnormal separation or tearing of the sacroiliac joint). The iFuse Implant System (iFuse device) is a medical device that is surgically implanted into the sacroiliac (SI) joint during a minimally invasive surgical procedure (one that uses a smaller incision and less damage to the skin and other tissues than standard surgery). The purpose of implanting the device is to stabilize and fuse the SI joint.

Key facts

Study ID

NCT01640353

Run by

SI-BONE, Inc.

People needed

194

Starts

2012-07-01

Expected to finish

2016-02-01

Last updated by the study team

2017-03-24

Who can join

Age: 21 and older, up to 70. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

• Age 21-70 at time of screening
• Patient has lower back pain for >6 months inadequately responsive to conservative care
• Diagnosis of sacroiliac joint disruption or degenerative sacroiliitis based on ALL of the following:
• Patient has pain at or close to the posterior superior iliac spine (PSIS) with possible radiation into buttocks, posterior thigh or groin and can point with a single finger to the location of pain (Fortin Finger Test), and
• Patient has at least 3 of 5 physical examination maneuvers specific for the SI joint (see Table 3), and
• Patient has improvement in lower back pain numeric rating scale (NRS) of at least 50% after injection of local anesthetic into affected SI joint(s) (see Section 3.6.4), and
• One or more of the following:
• i. SI joint disruption:
• Asymmetric SI joint widening on X-ray or CT scan
• Leakage of contrast on diagnostic arthrography
• ii. Degenerative sacroiliitis:
• Radiographic evidence of SI joint degeneration, including sclerosis,osteophytes, subchondral cysts, or vacuum phenomenon on CT or plain film, or
• Due to prior lumbosacral spine fusion
• Baseline Oswestry Disability Index (ODI) score of at least 30% 5. Baseline SI joint pain score of at least 50 on 0-100 mm visual analog scale 6. Patient has signed study-specific informed consent form 7. Patient has the necessary mental capacity to participate and is physically able to comply with study protocol requirements

You may not qualify if…

• Severe back pain due to other causes, such as lumbar disc degeneration, lumbar disc herniation, lumbar spondylolisthesis, lumbar spinal stenosis, lumbar facet degeneration, and lumbar vertebral body fracture
• Other known sacroiliac pathology such as:
• Sacral dysplasia
• Inflammatory sacroiliitis (e.g., ankylosing spondylitis or other HLA-associated spondyloarthropathy)
• Tumor
• Infection
• Acute fracture
• Crystal arthropathy
• History of recent (< 1 year) major trauma to pelvis
• Previously diagnosed osteoporosis (defined as prior T-score <-2.5 or history of osteoporotic fracture).
• Osteomalacia or other metabolic bone disease
• Chronic rheumatologic condition (e.g., rheumatoid arthritis)
• Any condition or anatomy that makes treatment with the iFuse Implant System infeasible
• Chondropathy
• Known allergy to titanium or titanium alloys
• Use of medications known to have detrimental effects on bone quality and soft-tissue healing
• Prominent neurologic condition that would interfere with physical therapy
• Current local or systemic infection that raises the risk of surgery
• Patient currently receiving or seeking worker's compensation, disability remuneration, and/or involved in injury litigation.
• Currently pregnant or planning pregnancy in the next 2 years
• Patient is a prisoner or a ward of the state.
• Known or suspected drug or alcohol abuse
• Diagnosed psychiatric disease (e.g., schizophrenia, major depression, personality disorders) that could interfere with study participation
• Patient is participating in an investigational study or has been involved in an investigational study within 3 months prior to evaluation for participation

Where it is running

• Spine and Neuro Center — Huntsville, Alabama, United States
• Silicon Valley Spine — Campbell, California, United States
• BASIC Spine — Newport Beach, California, United States
• Southern California Center for Neuroscience and Spine (SCCNS) — Pomona, California, United States
• St. Mary's Spine — San Francisco, California, United States
• Neurosurgical and Spine Specialists — Parker, Colorado, United States
• Orthopaedic Clinic of Daytona Beach — Daytona Beach, Florida, United States
• The Orthopaedic Institute/NFRMC — Gainsville, Florida, United States
• Bartow Regional Medical Center — Lakeland, Florida, United States
• Piedmont Orhopaedics — Macon, Georgia, United States
• Orthopaedic Center of Southern Illinois — Mount Vernon, Illinois, United States
• Bluegrass Orthopaedics & Hand Care Research — Lexington, Kentucky, United States
• Columbia Orthopaedic Group — Columbia, Missouri, United States
• Midwest Division-RMC, LLC,-Research Medical Center — Kansas City, Missouri, United States
• Mercy Medical Research Institute — Springfield, Missouri, United States
• Alice Peck Day Memorial Hospital — Lebanon, New Hampshire, United States
• Manhattan Orthopedic Spine, PLLC — New York, New York, United States
• Orthopedic and Reconstructive Center (formally)Health Research Institute — Oklahoma City, Oklahoma, United States
• Allegheny General Hospital — Pittsburgh, Pennsylvania, United States
• Medical University of South Carolina — Charleston, South Carolina, United States
• East Tennesse Brain & Spine Center — Johnson City, Tennessee, United States
• Brazos Spine — College Station, Texas, United States
• Texas Back Institute — Plano, Texas, United States
• Precision Spine Care — Tyler, Texas, United States
• Virginia Spine Institute — Reston, Virginia, United States

Full record on ClinicalTrials.gov

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