Continuous Femoral Nerve Block versus Intravenous Patient Controlled Analgesia for Knee Mobility and Long-Term Pain in Patients Receiving Total Knee Replacement: A Randomized Controlled Trial
Table 5
Visual analogue scale during hospitalization and postoperatively#.
Time point
CFNB group
PCIA group
value
VAS scores in motion
1 day preoperatively
5 (4-5)
5 (4-5)
0.494
24 h postoperatively
3 (3-4)
3.5 (3-4)
0.262
48 h postoperatively
3 (3-4)
3 (3-4)
0.143
7 days postoperatively
3 (3-4)
4 (4-4)
<0.0001*
3 months postoperatively
3 (2–4)
3 (3-4)
0.025
6 months postoperatively
3 (2-3)
3 (3-4)
0.011
12 months postoperatively
2 (1–3)
2 (1–3)
0.581
VAS scores at rest
1 day preoperatively
2 (1–3)
2 (1–3)
0.44
24 h postoperatively
3 (3-4)
3 (3-4)
0.211
48 h postoperatively
3 (3-4)
3 (3-4)
0.297
7 days postoperatively
3 (2-3)
3 (3-3)
0.031*
3 months postoperatively
1 (1-2)
2 (1–3)
<0.0001
6 months postoperatively
1 (1-1)
2 (1-2)
<0.0001
12 months postoperatively
1 (1-1)
1 (1-1)
0.681
Continuous variables were described as median (interquartile range) and Wilcoxon rank-sum test was used, value <0.05. The total number of patients was 127 in CFNB group and 123 in PCIA group for in-hospital pain evaluation, while 109 patients in CFNB group and 102 patients in PCIA group were included in the analysis of chronic pain.
