Can hybrid hyaluronic acid represent a valid approach to treat rizoarthrosis? A retrospective comparative study

Table 2 Changes in VAS global hand pain and FIHOA score between baseline and 6 months by treatment group

	Sinovial H-L Group (n = 55)			Triamcinolone Group (n = 45)			Difference in change scores between groups
	T0	T4	Change	T0	T4	Change
VAS pain (mm)
Mean ± SD	58.52 ± 16.2	29.86 ± 20.13	-28.66 ± 16.92	61.75 ± 17.56	57.15 ± 14.46	−4.25 ± 6.85	24.41***
Range	30–100	0–70	−60 − 10	30–90	30–80	-10-15
FIHOA score
Mean ± SD	12.16 ± 4.33	4.44 ± 4.42	−7.32 ± 5.33	12.9 ± 4.24	11.85 ± 3.53	−1.55 ± 1.3	5.77***
Range	5–25	0–16	−16-4	−5-20	5–17	−5-0

VAS Visual Analogue Scale (VAS; 0–100 mm), FIHOA Functional Index for Hand Osteoarthritis scores (0–30 scale); T0: time of the first injection; T4: month 6
***p < 0.001 Wilcoxon rank-sum test

ISSN: 1471-2474