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Fig. 2 | BMC Musculoskeletal Disorders

Fig. 2

From: Dexmedetomidine combined with ropivacaine for erector spinae plane block after posterior lumbar spine surgery: a randomized controlled trial

Fig. 2

Comparison of VAS at rest between the groups. VAS values were significantly lower in Ropivacaine + Dex group than in Ropivacaine group at 8, 12, 24, and 48 h postoperatively (*P < 0.05), but the VAS values were similar between the groups during the postoperative 2–4 h (P > 0.05)

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