Table 3.

Quality of life parameters

	Low SCA (n = 34)	High SCA (n = 15)	p value
JOA
Pre	10.06 ± 1.56	10.33 ± 1.80	0.877
Post	13.15 ± 1.46	13.20 ± 1.42	0.907
F/U 2y	13.76 ± 1.18	13.73 ± 1.28	0.823
△JOA(pre vs post)	3.09 ± 1.55	2.87 ± 1.55	0.647
△JOA(pre vs F/U)	3.71 ± 1.59	3.40 ± 2.23	0.912
Pre vs F/U	< 0.001	< 0.001
RR(pre vs post)	43.65% ± 23.44%	40.45% ± 20.52%	0.390
RR(pre vs F/U)	52.25% ± 19.17%	43.84% ± 35.18%	0.888
NDI
Pre	19.32 ± 4.92	23.33 ± 5.70	0.041
Post	13.41 ± 3.78	15.53 ± 3.94	0.080
F/U 2y	11.97 ± 3.56	14.13 ± 4.52	0.078
△NDI(pre vs post)	− 5.91 ± 2.44	− 7.80 ± 2.54	0.018
△NDI(pre vs F/U)	− 7.35 ± 3.05	− 9.20 ± 2.62	0.048
Pre vs F/U	< 0.001	< 0.001
SF-36
Pre	43.76 ± 6.54	42.80 ± 5.56	0.565
Post	52.12 ± 7.39	52.60 ± 5.83	0.836
F/U 2y	53.47 ± 7.84	53.13 ± 6.40	0.884
△SF-36(pre vs post)	8.90 ± 4.39	8.41 ± 4.74	0.420
△SF-36(pre vs F/U)	9.88 ± 4.04	8.94 ± 4.56	0.146
Pre vs F/U	< 0.001	< 0.001

RR Recovery rate