• Pain Res Manag · Jan 2023

    Perioperative Nerve Blockade Reduces Acute Postoperative Pain after Orthognathic Surgery.

    • Yuka Oono, Saori Takagi, Lars Arendt-Nielsen, and Hikaru Kohase.
    • Division of Dental Anesthesiology, Department of Diagnostic and Therapeutic Sciences, Meikai University School of Dentistry, Sakado, Japan.
    • Pain Res Manag. 2023 Jan 1; 2023: 73061337306133.

    BackgroundThe role of perioperative pain management is not only to reduce acute postoperative pain (POP) but also to prevent chronic POP. It would be important to know the usefulness of nerve blockade for perioperative management. However, it has not been extensively studied in orofacial surgery. The objective of the study was to investigate whether perioperative nerve blockade reduces acute POP after orthognathic surgery.MethodsPatients scheduled for orthognathic surgery were retrospectively reviewed ("preblock group": the nerve blockade was performed before emergence from general anesthesia, and "no preblock group": the nerve blockade was not performed before emergence from general anesthesia). The visual analog scale (VAS; 0-100 mm)-POP intensity, the VAS-POP areas under the curves (VASAUCs (mm × day)) in addition to VASAUCs for postoperative hours 6 (VASAUC_6), 12 (VASAUC_12), 18 (VASAUC_18), and 24 (VASAUC_24), the analgesic requirement period (day), and the number of days with pain (day) were analyzed. Data are presented as median (interquartile range) values.ResultsFifty-six patients (preblock group, 22; no preblock group, 34) were included (21 males, 35 females; age: 22.0 [21.0-28.0] years). VASAUC_6, VASAUC_12, VASAUC_18, and VASAUC_24 in the preblock group were significantly smaller than those in the no preblock group (3.5 [2.0-7.2] vs. 7.4 [5.1-10.0], p = 0.0007; 9.5 [6.4-13.7] vs. 15.0 [7.2-22.9], p = 0.042; 15.7 [10.3-23.1] vs. 29.3 [18.9-37.2], p = 0.0002; and 17.6 [12.7-27.2] vs. 39.5 [22.9-46.9], p = 0.001, respectively). There were no significant differences between the 2 groups in VASAUC, the analgesic requirement period, and the number of days with pain (p > 0.05).ConclusionsPerioperative nerve blockade reduces POP after orthognathic surgery, especially for the acute postoperative period.Copyright © 2023 Yuka Oono et al.

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