Table I.

SCV of the injured sciatic nerves in different groups

Group	n	1 d.a.o.	7 d.a.o.	14 d.a.o.	21 d.a.o.	28 d.a.o.
A	6	12.32 ±3.21	13.45 ±3.57	15.39 ±4.53	16.75 ±2.37	17.92 ±3.98
B	6	12.86 ±4.25	14.11 ±2.05	17.62 ±1.95	22.85 ±4.35*	27.79 ±2.87*
C	6	13.37 ±2.64	15.74 ±3.32	17.29 ±3.36	23.82 ±2.46*	28.87 ±1.92*
D	6	11.93 ±4.51	15.96 ±2.26	20.55 ±3.31	26.46 ±3.19*	36.65 ±3.76* #

d.a.o. – days after operation. SCV was expressed as x ± SD (m/s). Group A – 0.9% saline treatment, group B – dexamethasone (1 mg/kg) treatment, group C – vitamin B₁₂ (2 mg/kg) treatment, group D – dexamethasone (1 mg/kg) and vitamin B₁₂ (2 mg/kg) treatment.

^*Value of p < 0.05 vs. group A at 21 day and 28 day.

^#p < 0.05 vs. group B and C at 28 day