Which prognostic block selection criteria best predict successful treatment outcomes following sacral lateral branch radiofrequency neurotomy (SLBRFN) for sacroiliac joint pain?
Nearly 50% of patients experienced clinically significant pain relief and functional improvement three months after SLBRFN, regardless of the specific block selection criteria used (single vs. dual blocks, lateral branch block vs. intra-articular block, or degree of pain relief from blocks). None of the block paradigms significantly predicted treatment success after controlling for patient demographics and procedural variables. This suggests multiple block strategies can be used to determine SLBRFN eligibility.
SLBRFN is a validated treatment for sacroiliac joint pain, but patient selection criteria vary widely and impact clinical decision-making. These findings challenge the necessity of strict block-based criteria for patient selection, potentially simplifying clinical pathways and expanding access to SLBRFN. Further research is needed to refine predictive factors for long-term outcomes.
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