Impact of a Preemptive Multimodal Analgesia plus Femoral Nerve Blockade Protocol on Rehabilitation, Hospital Length of Stay, and Postoperative Analgesia after Primary Total Knee Arthroplasty: A Controlled Clinical Pilot Study

Table 1

Baseline characteristics.

	FNB (𝑛=19)	PMMA (𝑛=20)	P-value
Demographics
Male (%)	12 (57)	9 (43)	0.34*
Mean age (SD)	66.7 (7.9)	65.8 (8.4)	0.27^†
Function
Mean knee flexion (SD)	119.3 (11.5)	118.6 (10.9)	0.83^†
Walks <6 blocks (%)	17 (91)	16 (80)	0.63*
Uses no aide (%)	10 (53)	13 (65)	0.33*
Pain
VAS score (SD)	6.5 (2.3)	5.2 (2.3)	0.09^†

FNB: femoral nerve block, PMMA: preemptive multimodal analgesia, SD: standard deviation, and VAS: visual analogue scale.
*Analyzed using chi-square test.
^†Analyzed using independent t-test.