Perioperative Nerve Blockade Reduces Acute Postoperative Pain after Orthognathic Surgery
Table 1
Patient characteristics, surgery, and intraoperative variables.
Preblock group
No preblock group
value
Patient characteristics
Sex (M/F), n (%)
8 (36.4)/14 (63.6)
13 (38.2)/21 (61.8)
—
Age (years)
22.0 [21.0–28.0]
22.5 [21.0–26.8]
0.866
Height (cm)
163.2 [158.0–171.6]
165.6 [159.4–171.0]
0.529
Body weight (kg)
56.0 [51.9–62.8]
57.0 [52.3–59.9]
0.525
BMI
21.2 [19.4–22.6]
20.6 [19.1–22.0]
0.219
ASA physical status (1/2/3), n (%)
15 (68.2)/6 (27.3)/1 (4.5)
26 (76.5)/8 (23.5)
—
Surgery
Le Fort type I osteotomy (Le Fort 1) and bilateral sagittal split ramus osteotomy (SSRO)
21/22; 95.5%
31/34; 91.2%
—
Le Fort type I osteotomy (Le Fort 1), bilateral sagittal split ramus osteotomy (SSRO), and genioplasty
1/22; 4.5%
3/34; 8.8%
—
Intraoperative variables
Duration of surgery (min)
368.0 [349.3–440.3]
311.5 [261.0–365.3]
0.001
Duration of anesthesia (min)
495.0 [473.5–560.8]
423.5 [377.5–483.3]
0.0007
Blood loss (ml)
735.5 [559.0–962.0]
564.5 [377.0–703.0]
0.042
1% lidocaine for infiltration anesthesia (ml)
25.0 [25.0–27.3]
20.0 [17.6–25.0]
0.003
Remifentanil consumption (mg)
10.97 [8.75–13.15]
7.65 [6.33–9.25]
0.004
Preblock group, nerve blockade was performed before emergence from general anesthesia; no preblock group, nerve blockade was not performed before emergence from general anesthesia. F, female; M, male; BMI, body mass index; n, number of patients. Preblock group, N = 22; no preblock group, N = 34. Data are presented as numbers or median (interquartile range) values. T-tests were performed to compare 2 groups in spite of age which was performed with the Mann–Whitney U test. < 0.05; < 0.005.
