ArticleInterventional pain medicine2026
Iliac crest pseudoarticulation with the lumbar transverse process: Two cases, imaging considerations, and injection outcomes.
Article in Interventional pain medicine, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Background: Isolated pseudoarticulation between lumbar transverse processes and the iliac crest is rarely reported and may be distinct from Bertolotti's syndrome (fifth lumbar transverse process-sacral ala pseudoarticulation). This case series describes clinical presentation, imaging findings, and response to corticosteroid injection. Case presentations: In the first case, the patient presented with diffuse low back pain. Imaging revealed a pseudoarticulation between the fourth lumbar transverse process and iliac crest. Image-guided corticosteroid injection produced substantial and durable pain relief. In the second case, the patient had right-sided axial low back pain, reproducible with palpation of the right posterior medial iliac crest and positive rotation-extension testing. Imaging showed bilateral pseudoarticulations between the fifth lumbar transverse processes and the proximal iliac crest. The same injection protocol provided significant but transient pain relief. Conclusion: Isolated lumbar transverse process-iliac crest pseudoarticulation may be an under-recognized pain source. Targeted local anesthetic injections can serve as diagnostic tools for localization and prognostication for therapeutic injections.
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