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 3

Postdischarge outcomes.

	FNB	PMMA	P value
Postdischarge pain
2 weeks (SD)	4.0 (2.6)	4.4 (2.4)	0.72^†
6 weeks (SD)	2.8 (2.2)	2.9 (2.4)	0.93^†
12 weeks (SD)	1.1 (1.9)	2.0 (2.2)	0.31^†
Postdischarge knee flexion
2 weeks (SD)	84.7 (10.4)	83.1 (9.8)	0.69^†
6 weeks (SD)	101.3 (13.4)	97.4 (13.2)	0.40^†
12 weeks (SD)	110.9 (9.6)	105.0 (11.7)	0.14^†

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