ArticleJournal of Korean Neurosurgical Society2025
The Clinical Effects of C2 and C3 Medial Branch Block for Medically Intractable Headache : a Retrospective Study.
Article in Journal of Korean Neurosurgical Society, 2025. 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
objectiveThis study aimed to evaluate the clinical effects of medial branch blocks (MBBs) C2 and C3 in treating patients with medically intractable headaches.
methodsThe medical records of 81 patients with medically intractable headaches who underwent a C2/3 MBB between January 2019 and March 2022 were retrospectively reviewed. The degrees of pain were evaluated using a Visual analogue scale (VAS) score (rating 0-10) on baseline and after procedures. To evaluate patients' satisfaction for the treatment, self-reporting measurements were examined and were categorized as excellent (>90% pain relief), good (50-90% pain relief), fair (10-50% pain relief), and none (<10% pain relief).
resultsThe total number of MBB procedure was 107. The average baseline VAS score was 7.4±1.5, which improved significantly to 2.6±2.3, 3.6±2.6, and 4.5±3.2 on 1-3 days, 3-7 days, and 3 months after the procedure, respectively (Wilks' lambda within group test, p<0.001). For the subjective feeling of pain relief, percentages of "excellent" response in the self-reporting measurements were significantly decreased over time (chi-square test; p=0.001).
conclusionThis study demonstrates clinical effectiveness of C2/3 MBB in patients with medically intractable headaches, with both early and prolonged benefits.
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