Lidocaine Vs Bupivacaine for Cervical Medial Branch Block for Chronic Cervical Facet Arthropathy .
Comparative Outcome of Lidocaine Versus Bupivacaine for Cervical Medial Branch Block in Chronic Cervical Facet Arthropathy: A Randomized Double-Blind Study.
World Neurosurg . 2023 Jul:175:e662-e668.62 patients with chronic cervical facet syndrome were randomized to receive a cervical medial branch block with either lidocaine (n=31) or bupivacaine (n=31). The primary outcome of interest was the duration of 50% pain relief using a Kaplan-Meier survival estimate after 12 weeks. Secondary outcomes of interest included 75% pain reduction using a Kaplan-Meier survival estimate, pain at rest and during mobilization on a Numeric Rating Scale (NRS), and function using the Neck Disability Index (NDI). No significant differences were seen in the duration of 50% and 75% pain reduction between the two groups. The lidocaine group showed significantly better pain scores at rest at 30 minutes and pain with movement at 30 minutes and 2 weeks post-block.
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