Sacroiliac Joint Fusion With iFuse Implant System (SIFI)

NCT ID: NCT01640353

Last Updated: 2017-03-24

Basic Information

• Recruitment Status: COMPLETED
• Total Enrollment: 194 participants
• Study Classification: OBSERVATIONAL
• Study Start Date: 2012-07-31
• Study Completion Date: 2016-02-29

Brief Summary

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.

Conditions

Degenerative Sacroiliitis; Sacroiliac Joint Disruption

Study Design

• Observational Model Type: COHORT
• Study Time Perspective: PROSPECTIVE

Eligibility Criteria

Inclusion Criteria

1. Age 21-70 at time of screening

2. Patient has lower back pain for >6 months inadequately responsive to conservative care

3. Diagnosis of sacroiliac joint disruption or degenerative sacroiliitis based on ALL of the following:

1. 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

2. Patient has at least 3 of 5 physical examination maneuvers specific for the SI joint (see Table 3), and

3. 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

4. One or more of the following:

i. SI joint disruption:

1. Asymmetric SI joint widening on X-ray or CT scan

2. Leakage of contrast on diagnostic arthrography

ii. Degenerative sacroiliitis:

1. Radiographic evidence of SI joint degeneration, including sclerosis,osteophytes, subchondral cysts, or vacuum phenomenon on CT or plain film, or

2. Due to prior lumbosacral spine fusion

4. 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

Exclusion Criteria

1. 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

2. Other known sacroiliac pathology such as:

1. Sacral dysplasia

2. Inflammatory sacroiliitis (e.g., ankylosing spondylitis or other HLA-associated spondyloarthropathy)

3. Tumor

4. Infection

5. Acute fracture

6. Crystal arthropathy

3. History of recent (< 1 year) major trauma to pelvis

4. Previously diagnosed osteoporosis (defined as prior T-score <-2.5 or history of osteoporotic fracture).

5. Osteomalacia or other metabolic bone disease

6. Chronic rheumatologic condition (e.g., rheumatoid arthritis)

7. Any condition or anatomy that makes treatment with the iFuse Implant System infeasible

8. Chondropathy

9. Known allergy to titanium or titanium alloys

10. Use of medications known to have detrimental effects on bone quality and soft-tissue healing

11. Prominent neurologic condition that would interfere with physical therapy

12. Current local or systemic infection that raises the risk of surgery

13. Patient currently receiving or seeking worker's compensation, disability remuneration, and/or involved in injury litigation.

14. Currently pregnant or planning pregnancy in the next 2 years

15. Patient is a prisoner or a ward of the state.

16. Known or suspected drug or alcohol abuse

17. Diagnosed psychiatric disease (e.g., schizophrenia, major depression, personality disorders) that could interfere with study participation

18. Patient is participating in an investigational study or has been involved in an investigational study within 3 months prior to evaluation for participation

• Minimum Eligible Age: 21 Years
• Maximum Eligible Age: 70 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

SI-BONE, Inc.

INDUSTRY

Sponsor Role: lead

Responsible Party

Responsibility Role: SPONSOR

Principal Investigators

Bradley Duhon, MD

Role: PRINCIPAL_INVESTIGATOR

University of Colorado, Denver

Locations

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

Overlake Hospital Medical Center

Bellevue, Washington, United States

Countries

United States

References

Dat KO, Cher D, Polly DW. Effects of BMI on SI joint fusion outcomes: examining the evidence to improve insurance guidelines. Spine J. 2024 May;24(5):783-790. doi: 10.1016/j.spinee.2023.11.015. Epub 2023 Dec 9.

Reference Type: DERIVED

PMID: 38081463 (View on PubMed)

Other Identifiers

300101

Identifier Type: -

Identifier Source: org_study_id