The Effectiveness of Sacral Lateral Branch Radiofrequency Neurotomy for Posterior Sacroiliac Joint Complex Pain in Patients Selected by Dual Sacral Lateral Branch Blocks; A Real-World Cohort Study

Austin Boos, Amanda Cooper, Brook Martin, Robert Burnham, Allison Glinka Przybyz, Aaron Conger, Zachary McCormick, Taylor Burnham, December, 2024

What question is this study trying to answer?

This study investigates the effectiveness of sacral lateral branch radiofrequency neurotomy (SLBRFN) in treating sacroiliac joint complex (SIJC) pain, specifically in patients rigorously selected using dual sacral lateral branch blocks (SLBBs) with a stringent ≥80% pain relief cutoff.

What did we learn?

Approximately 50% of patients selected with these strict criteria experienced clinically meaningful pain relief and improved function three months after SLBRFN. The use of a three-tined bipolar radiofrequency cannula and lower patient BMI were associated with better functional outcomes. Repeat procedures provided durable pain relief averaging around eight months.

Why is this relevant?

SIJC pain is challenging to diagnose and treat due to its complex dual innervation and involvement of both intra- and extraarticular structures. Traditional patient selection methods may not align with the anatomical targets of SLBRFN. This study offers important real-world evidence that SLBRFN is effective when patients are selected using validated, stringent diagnostic blocks, and highlights factors influencing treatment success. The findings guide clinicians on optimizing patient selection and procedural technique to improve outcomes in managing SIJC pain.

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NOTE: This was written to help the reader become familiar with some of the research we are doing here at Vivo Cura Health. This post, and all other content on this website are not intended to be a substitute for medical advice, diagnosis, or treatment. Please consult with a certified healthcare provider to discuss if a treatment is right for you.