Table 1.

Pre- and post-injection clinical scores.

	Baseline	1-year	p
NRS	5.8 ± 1.3	2.3 ± 0.9	<0.001
ROM (°)	118.22 ± 14.72	17.13 ± 5.22	<0.001
WOMAC pain	9.67 ± 3.45	-7.02 ± 3.45	<0.001
WOMAC stiffness	3.15 ± 1.33	-1.97 ± 1.02	<0.001

Data are expressed as average ± standard deviation; NRS, numeric rating scale; ROM, range of motion; WOMAC, Western Ontario and McMaster University.