• Seikai Toyooka, Masaaki Ito, Akihito Kakinuma, Satoru Kayama, Kazuyuki Watanabe, Wataru Miyamoto, Takumi Nakagawa, and Hirotaka Kawano.
• Department of Orthopaedic Surgery, Teikyo University School of Medicine, 2-11-1, Kaga, Itabashi, Tokyo, 173-8605, Japan. Electronic address: blueocean1092@hotmail.com.
• J Orthop Sci. 2020 May 1; 25 (3): 405-409.

BackgroundAlthough continuous interscalene brachial plexus block (CISBPB) is common method in pain management following arthroscopic rotator cuff repair (ARCR), little is known about the analgesic effects of periarticular multimodal drug injection (PMDI) for ARCR. This retrospective study sought to clarify which technique could provide the best analgesic effect after ARCR.MethodsWe retrospectively reviewed consecutive patients who underwent ARCR performed by the same surgeon at our institution between June 2016 and November 2017. Patients who underwent surgery before January 2017 received CISBPB and those who underwent surgery after February 2017 received PMDI for postoperative pain control. Both treatment groups also received fentanyl by intravenous patient-controlled analgesia (IV-PCA). Postoperative pain was evaluated by visual analog scale (VAS) pain scores at 3, 6, 12, 24, and 48 h and need for IV-PCA at 8, 16, and 24 h.ResultsTwenty-eight patients received CISBPB and 21 received PMDI. According to the VAS scores, the postoperative analgesic effect was significantly better in the CISBPB group during the first 6 h (p < 0.05). Total fentanyl consumption by IV-PCA during the first 8 postoperative h was significantly greater in the PMDI group than in the CISBPB group.ConclusionsPMDI does not improve early postoperative analgesia after ARCR compared with CISBPB. CISBPB had a significantly better analgesic effect in the first 8 h postoperatively.Level Of EvidenceLevel III.Copyright © 2019 The Japanese Orthopaedic Association. Published by Elsevier B.V. All rights reserved.

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