Efficacy of Periarticular Infiltration with Dexamethasone and Bupivacaine plus Adductor Canal Block Relative to That of Adductor Canal Block Alone for Patients Undergoing Total Knee Arthroplasty: A Retrospective Case-Matched Study

Table 3

Median postoperative fentanyl consumption (microgram).

Time	Group 1 (ACB alone) N = 33	Group 2 (ACB + PI)N = 33	P value
0–12 hours	40 (30–65)	30 (0–30)	0.004
12–24 hours	0 (0–30)	0 (0–15)	0.108
24–48 hours	0 (0–45)	0 (0)	<0.001
48–72 hours	0 (0–30)	0 (0)	0.031
Total	70 (35–170)	30 (0–60)	<0.001