Table 2.

Post-surgical clinical data and rehabilitation milestones in LIA and SNB patients

Variables	LIA group (n = 41)	SNB group (n = 38)	P value
Passive knee flexion angle (degrees)
POD 7	108 ± 13	104 ± 14	0.150
POD 14	119 ± 12	116 ± 12	0.337
POD 21	123 ± 12	123 ± 8	0.978
C-reactive protein level (mg/dl)
POD 1	1.39 ± 0.71	3.77 ± 1.78	<0.001*
POD 3	12.14 ± 5.22	15.47 ± 4.20	0.006*
POD 7	5.53 ± 7.02	6.13 ± 8.68	0.762
POD 14	1.19 ± 1.42	1.26 ± 0.99	0.841
Time to achieve rehabilitation milestones (days)
Ambulation with a walker	2.0 (2.0-3.0)	2.0 (1.25–3.0)	0.648
Straight leg raise	3.0 (3.0–4.0)	3.0 (3.0–4.0)	0.821
Ambulation with a cane	9.0 (7.0–11.5)	8.0 (7.0–10.0)	0.818
Stairs with a rail	11.0 (9.0–17.0)	12.0 (9.0–16.25)	0.886
Length of hospital stay (days)	24.0 (20.0–32.0)	24.0 (22.0–30.0)	0.738
Knee Society Score (function)
Before surgery	39.2 ± 25.2	41.9 ± 28.2	0.624
At discharge	49.3 ± 16.2	51.6 ± 14.1	0.791
Knee Society Score (knee)
Before surgery	44.9 ± 13.7	47.5 ± 17.5	0.661
At discharge	83.9 ± 10.0	84.9 ± 11.8	0.325
Induction time (min)	54.1 ± 6.4	61.0 ± 8.5	<0.001*
Surgical time (min)	73.5 ± 15.6	69.5 ± 13.1	0.215
Time of motor block in toe motion (h)	1.5 ± 4.4	6.7 ± 4.8	<0.001*
Requirement of diclofenac (mg)	0 (0–25)	0 (0–50)	0.159
Adverse effects
Nausea or vomiting (%)	5 (12.2)	7 (18.4)	0.444
Symptoms of local anesthetic poisoning (%)	0 (0)	0 (0)	1.00

Data are presented as absolute number (percentage), median (interquartile range), or mean (SD) as appropriate for the variables and compared by Mann-Whitney U test or chi-square test. * Statistically significant P < 0.05. LIA local infiltration of analgesia, SNB sciatic nerve block, POD post-operative day