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Deep Dive:
The Posterior Oblique Technique for SI Joint Fusion

Featuring SACRIX’s Revolutionary Approach 

With Sacrix, a portfolio company of KIC Ventures, innovation isn’t about reinventing the wheel, it’s about engineering smarter solutions to old problems. One such problem? Sacroiliac (SI) joint dysfunction, a major but often under-treated cause of lower back pain.

In our featured video, Cutting Edge SACRIX SI Joint Transfixation: Posterior Oblique Technique by Harvard Spine Surgeon - Dr. Kingsley Chin, we showcase an advanced, minimally invasive technique that redefines what’s possible in SI joint surgery. 

We’re using this opportunity to share with our audience, both physicians and curious learners, about the surgical process, while calling out the salient features that make this method a true differentiator in spine care. 

 

 

Key Highlights of the Technique-

1. Posterior Oblique Trajectory 

Unlike traditional approaches, this path avoids gluteal muscles and blood vessels, ensuring a cleaner, safer route to the joint. 

2. 1.5 cm-2 cm Bloodless Incision 

Yes, you read that right. 

The procedure is executed through a tiny, less than 1-inch incision, minimizing tissue trauma and maximizing patient comfort. 

3. Sequential Implantation 

Each implant is placed 20–25 mm inferior to the previous one, mimicking its trajectory to ensure consistent and secure fixation. 

4. Performed in Minutes 

This procedure can be completed in under 10 minutes, and it’s often done in outpatient settings—patients walk in and walk out the same day. 

Engineered Strength 

The Sacrofuse™ implant has shown a 400% increase in pull-out strength when compared to legacy competitors. That’s not just innovation, it’s impact. 

Why This Matters 

The Sacrix technique offers: 

  •  Reduced OR time 

  •  Smaller incisions 

  •  Less bleeding and muscle disruption 

  •  Greater implant security 

  •  Faster patient recovery 

All with the ease of execution that empowers trained spine surgeons and interventionalists to deliver results that matter. 

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