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Sacroiliac (SI) Joint Fusion Treatment in Central Kentucky

The sacroiliac (SI) joint is where your spine connects to your pelvis, a critical junction that helps transmit the weight of your upper body to your hips and legs. When the SI joint becomes inflamed, unstable, or arthritic, it can trigger debilitating low back, hip, or buttock pain that interferes with walking, standing or daily activities. SI joint fusion is a minimally invasive surgical solution designed to stabilize and fuse the SI joint, reducing abnormal joint motion and helping restore stability and comfort for patients who have not found relief through conservative treatments.

BGO SI Joint Pain
BGO SI Joint Pain

Why Choose Bluegrass Orthopaedics for SI Joint Fusion

  • Comprehensive evaluation of sacroiliac joint dysfunction
    • Assessment of lower back, hip, and pelvic pain to identify the sacroiliac joint as the pain source
    • Rule out other spine or hip conditions
  • Non-surgical treatment options when appropriate
    • Conservative care as the first approach
    • May include physical therapy, activity modification, medications, and image-guided injections
  • Minimally invasive SI joint fusion for lasting relief
    • Option for patients with persistent SI joint pain unresponsive to non-surgical care
    • Stabilizes the joint to reduce pain and improve function
  • Experienced spine and orthopedic specialists
    • Extensive expertise in diagnosing and treating SI joint disorders
    • Use of advanced techniques to help patients return to daily activities with improved comfort and function

How the Procedure Works

  • First, under general anesthesia, the patient lies face-down. A small incision (typically 2–3 cm) is made in the buttock to access the ilium
  • Using fluoroscopic or 3D-navigation imaging, a guide pin is passed across the SI joint into the sacrum, ensuring precise alignment. The joint surfaces may be prepared (cartilage removed, joint space cleaned) to encourage fusion.
  • Triangular titanium implants (or screws) are inserted across the SI joint to hold the bones firmly together. In some cases, bone graft material may be used to facilitate bone growth.
  • After closure, over the following weeks and months the sacrum and ilium gradually fuse into a single, solid bone — eliminating abnormal motion and stabilizing the pelvis.

In most cases, the minimally invasive approach takes about an hour and is done on an outpatient basis.

BGO SI Joint Fusion

BGO SI Joint Fusion

Who Is a Good Candidate?

You may be a good candidate for SI Joint Fusion if you:

  • Experience chronic lower back, buttock, or hip pain localized to the SI-joint region that significantly limits standing, walking, or daily activities
  • Have tried conservative treatments (physical therapy, activity modification, SI-joint injections, bracing) for an extended period without long-term relief
  • Show clinical signs consistent with SI-joint dysfunction — e.g., positive provocative maneuvers (FABER, thigh-thrust, SI compression/distraction, etc.) and diagnostic confirmation (imaging, diagnostic injection) indicating SI joint as the main pain generator
  • Have no contraindications such as active infection, metal allergy (when titanium implants are used), unstable pelvic fractures, or conditions that would impede healing or fusion
  • Understand that fusion is a permanent change — the joint will no longer move like a normal joint — and that recovery includes a planned rehabilitation course

Why Choose Bluegrass Orthopaedics

At BGO, patients benefit from:

  • Fellowship-trained and experienced orthopedic spine specialists skilled in minimally invasive SI-joint fusion techniques
  • Access to the latest implant systems (including triangular-implant fusion systems like the iFuse Implant System) designed for stability and reproducible fusion
  • A comprehensive care continuum — from pre-operative diagnostics (clinical exam, imaging, diagnostic injections) to post-operative rehabilitation at our on-site physical therapy centers
  • A patient-centered approach: we evaluate all non-surgical options first (PT, injections, bracing) and only recommend surgery when truly indicated
  • Proven outcomes: many patients achieve substantial pain relief and return to daily life and activity after recovery
Bluegrass Orthopaedics

SI Joint Fusion - Frequently Asked Questions

What kind of incision is used for SI joint fusion?

Most SI joint fusions are done through a small incision of 2–3 cm (about the size of a golf-ball), typically in the buttock, when using a minimally invasive technique.

How long does the procedure take, and will I stay overnight?

The surgery itself usually takes about an hour. Many patients are discharged the same day, though some may stay overnight depending on their health status and recovery.

When can I resume normal activities?

Initial recovery aims at early mobility (walking) soon after surgery. Depending on implant system, the severity of symptoms, and surgeon’s protocol, full fusion and return to heavy activity generally occur over a period of a few months.

Are there risks or complications?

As with any surgery, there are risks: infection, bleeding, nerve or vascular injury, implant failure or loosening, healing problems, or insufficient pain relief if the SI joint isn’t truly the primary pain source.

Is fusion permanent — will my joint still move?

No. The goal of SI joint fusion is to permanently join (fuse) the sacrum and pelvis. Once fusion is complete, that joint no longer moves. This eliminates abnormal motion but also means some natural joint flexibility is lost.