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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.
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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.
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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-
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1. Posterior Oblique Trajectory
Unlike traditional approaches, this path avoids gluteal muscles and blood vessels, ensuring a cleaner, safer route to the joint.
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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.
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3. Sequential Implantation ​
Each implant is placed 20–25 mm inferior to the previous one, mimicking its trajectory to ensure consistent and secure fixation.
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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.
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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.
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Why This Matters ​
The Sacrix technique offers:
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Reduced OR time
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Smaller incisions
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Less bleeding and muscle disruption
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Greater implant security
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Faster patient recovery
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All with the ease of execution that empowers trained spine surgeons and interventionalists to deliver results that matter.