Table II.

Mild adverse reactions of the two groups.

Parameter	Platelet-rich plasma	Hyaluronic acid	P-value
Total injections (n)	126	141
Frequency, n (%)	42 (33.33)	15 (10.64)
Pain score (visual analogue scale)	3.59±2.24	1.93±0.80	<0.01
Start time (h)	0.33±0.42	0.10±0.21	0.05
End time (h)	45.71±18.41	31.20±23.04	0.02
Duration (h)	49.00±18.27	31.10±23.11	0.02