• Ahmad S Naja, Naji Madi, Yehia Tfayli, Fouad Ziade, Georges Haber, Saleh Kanawati, and Zoher Naja.
• Orthopedic Division, American University of Beirut Medical Center.
• Clin J Pain. 2021 Feb 1; 37 (2): 133139133-139.

ObjectivesMyofascial pain is one of the most common causes of regional pain with no definitive treatment. This randomized clinical trial was conducted to assess the efficacy of deep cervical plexus block versus placebo injection (sham block) for the treatment of myofascial neck and shoulder pain in terms of analgesic consumption and pain during a follow-up period of 2 weeks after the block.Materials And MethodsPatients were randomly divided into 2 groups. Group I (block) received deep cervical plexus block and group II (placebo) received normal saline. A total of 66 patients were included in the study, 34 patients in the block group and 32 patients in the placebo group.ResultsTwo weeks after the intervention, the average pain duration was significantly lower in the block group: 1.38±1.39 versus 5.25±1.72 for the block and placebo groups, respectively (P<0.0001). Pain intensity was significantly less in the block group such that 2.9% of patients in the block group had severe pain compared with 53.1% of patients in the placebo group (P<0.0001). Two weeks after receiving the block, the mean opioid consumption calculated as tramadol equivalent was 21.1±44.2 mg compared with 166.1±118.8 mg for the block and placebo groups, respectively. Multivariate analysis showed that patients with a longer history of pain had a higher pain score after 2 weeks. The possibility of recovery is affected by pain duration as patients with a history of chronic pain were least affected by the block.DiscussionThis technique could be an alternative to pharmacological and other nonpharmacological treatments for myofascial pain.Copyright © 2020 Wolters Kluwer Health, Inc. All rights reserved.

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