Document Classification

Section Type: RESULTS

Text: The JOA scores 2 weeks after MED were not significantly different among the 3 groups ; and from then on the JOA scores of Groups B and C were all higher than those of group A (A and B : t (4w) = 0. 602, t (8w) = 0. 701, t (1y) = 0. 623, t (2y) = 0. 654 ; A and C : t (4w) = 0. 833, t (8w) = 0. 759, t (1y) = 0. 714, t (2y) = 0. 771, all P < 0. 05), however, there were not significantly differences at all time points between Groups B and C (B and C : t (2w) = 0. 041, t (4w) = 0. 135, t (8w) = 0. 980, t (1y) = 0. 530, t (2y) = 0. 103, all P > 0. 05).