Table 3 Analgesic effect of CFNB in two groups

From: Enhanced preoperative education about continuous femoral nerve block with patient-controlled analgesia improves the analgesic effect for patients undergoing total knee arthroplasty and reduces the workload for ward nurses

	Group A (n = 30)	Group B (n = 30)	P-Values
VAS at rest
POD 1	1 (1,2)	0 (0,1)	<0.001
POD 2	0 (0,1)	0 (0,0)	0.005
VAS on motion
POD 1	4 (4,5)	3 (2,5)	<0.001
POD 2	3 (3,4)	2 (2,2)	<0.001
Knee flexion
POD 1	100 (90, 120)	100 (90, 120)	0.916
POD 2	108 (98, 120)	110 (99, 120)	0.811

Non-normal data are expressed as median and interquartile values. CFNB Continuous femoral nerve block, VAS Visual Analogue Scale

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