Table 2.

VAS before administration of treatments and 3, 6 and 12 months afterwards

Time	PRP	BM-MSCs + PRP
Baseline	5 (1.8)	5.3 (1.9)
3 months	3.8 (1.6)*	3.8 (2)*
6 months	3.5 (2)*	3.3 (2.2)*
12 months	4.5 (2.2)	3.5 (2.5)**

Data are presented as mean (SD). Intragroup comparisons between follow-up values and baseline values: *p < 0.05; **p = 0.01