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By Brent Compton, MD
Chronic pain originating from the sacroiliac (SI) joint is a frequently overlooked yet significant cause of lower back and buttock discomfort, affecting millions of Americans each year. At Interventional Pain Institute, our specialists understand how debilitating SI joint dysfunction can be — and how profoundly it can disrupt everyday life. For patients who have not found lasting relief through conservative treatments, minimally invasive sacroiliac joint fusion offers a safe, effective, and increasingly popular path to long-term pain reduction and improved mobility.
Understanding the Sacroiliac Joint and Why It Hurts
The sacroiliac joints connect the sacrum — the triangular bone at the base of the spine — to the iliac bones of the pelvis. These joints bear the weight of the upper body and absorb impact from walking, running, and everyday movement. When the SI joint becomes inflamed, unstable, or arthritic, it can generate intense, often localized pain in the lower back, buttocks, hips, and even down the leg — symptoms that are commonly mistaken for lumbar disc issues or sciatica.
SI joint dysfunction can result from a variety of causes, including degenerative arthritis, prior lumbar spinal fusion, pregnancy-related ligament changes, trauma, or inflammatory conditions such as ankylosing spondylitis. Diagnosis typically involves a detailed clinical evaluation, imaging studies, and diagnostic injections to confirm the SI joint as the primary pain generator.
What Is Minimally Invasive SI Joint Fusion?
Minimally invasive sacroiliac joint fusion is a surgical procedure designed to stabilize and fuse the SI joint, eliminating the abnormal movement that generates chronic pain. Unlike traditional open surgery, which requires large incisions and extensive soft tissue disruption, the minimally invasive approach uses small incisions and specialized implants inserted under fluoroscopic or CT guidance.
The most widely used technique involves placing triangular titanium implants — such as those used in the iFuse system — across the SI joint through a lateral approach. These implants are designed to promote bone ingrowth and biological fusion over time, creating a solid and permanent stabilization of the joint. The procedure is typically performed under general or spinal anesthesia and is often completed in under an hour.
Who Is a Candidate for This Procedure?
Not every patient with SI joint pain requires surgery. At Interventional Pain Institute, we take a comprehensive, stepwise approach to care. Minimally invasive SI joint fusion is generally considered for patients who have experienced significant SI joint pain for six months or more, have not responded adequately to conservative treatments such as physical therapy, anti-inflammatory medications, or SI joint injections, and have had positive diagnostic nerve block results confirming the SI joint as the source of their pain.
Ideal candidates are those with confirmed SI joint instability or degenerative sacroiliitis, particularly patients who have undergone prior lumbar spinal fusion — a group at significantly elevated risk for adjacent SI joint degeneration. A thorough preoperative evaluation ensures that each patient is properly selected for the best possible outcome.
Benefits and Recovery
Clinical studies have consistently demonstrated favorable outcomes with minimally invasive SI joint fusion. Patients typically report substantial reductions in pain scores, decreased reliance on opioid and non-opioid pain medications, and meaningful improvements in physical function and quality of life. Because the procedure requires only a small incision — typically less than three centimeters — there is less blood loss, a lower risk of infection, and a faster recovery compared to open surgical alternatives.
Most patients are able to bear weight and return to light activities within a few weeks, with a gradual return to full activity over two to three months. Physical therapy plays an important role in the recovery process, helping to strengthen the surrounding musculature and optimize long-term function.
Why Choose Interventional Pain Institute?
At Interventional Pain Institute, our board-certified pain management specialists and spine surgeons bring advanced training and a patient-centered philosophy to every case. We utilize the latest diagnostic tools and evidence-based treatment protocols to ensure that SI joint fusion is recommended only when clinically appropriate and likely to deliver meaningful, lasting results.
If you are living with chronic lower back or SI joint pain that has not responded to conventional treatment, we encourage you to schedule a consultation. Dr. Brent Comptom is committed to helping you reclaim your quality of life through the most effective and least invasive options available. Relief may be closer than you think.
At The Interventional Pain Institute, each patient’s pain is thoroughly evaluated and a customized treatment plan is developed. Dr. Compton and his team are dedicated to treating every patient with the utmost respect and care, with a mission to help patients regain functionality and improve their quality of life.
The Interventional Pain Institute also places a strong emphasis on patient education. An informed patient is an empowered patient, and the team strives to provide as much information as possible about each patient’s condition and treatment options.
With offices conveniently located in The Villages and Ocala, Florida, The Interventional Pain Institute is an excellent choice for those suffering from chronic or acute pain. Under the care of Dr. Brent Compton, patients can find not just relief, but also a renewed sense of hope for a pain-free future. Experience the difference at The Interventional Pain Institute today.
The Interventional Pain Institute
352-350-6500 | www.IPIMED.com
11974 CR 101, Ste 102, The Villages, FL 32162
1715 SE 28th Loop, Ocala FL
