Table 2. Western Ontario and McMaster Universities Arthritis Index (WOMAC) and Numeric Rating pain Scale (NRS) during the five-year follow-up.

	T0	T1	T2	T3	T4	T5
WOMAC	48.62 ± 8.95	34.55 ± 3.81	20.90 ± 6.72	13.92 ± 4.97	11.78 ± 4.55	11.91 ± 5.49
NRS	6.38 ±1.06	3.68 ± 0.75	1.53 ± 1.16	0.87 ± 0.87	0.73 ± 0.82	1.04 ± 0.81
	T6	T7	T8	T9	T10	T11
WOMAC	10.15 ± 5.31	9.57 ± 5.35	10.72 ± 4.38	10.73 ± 4.37	10.72 ± 4.38	10.75 ± 4.36
NRS	1.03 ± 0.80	0.92 ± 0.85	0.93 ± 0.88	0.95 ± 0.89	0.93 ± 0.88	0.95 ± 0.89