Table 3 Cobb angle, VAS score and ODI index (x ± s) of 43 patients with RPTK at each observation time point

Pre-op

18 ~ 55

27.7 ± 7.8

4 ~ 8

5.5 ± 1.1

40 ~ 80

58.7 ± 10.6

2 weeks Post-op

− 4 ~ 11

3.6 ± 3.5^a

0 ~ 3

1.1 ± 0.9^a

5 ~ 30

20.6 ± 5.7^a

Final FU

0 ~ 12

5.4 ± 3.0^b,c

0 ~ 3

0.9 ± 0.9^b,c

0 ~ 25

11.5 ± 5.4^b,c

Statistical value

^aF = 21.218; ^aP < 0. 001

^aF = 18.024; ^aP < 0. 001

^aF = 22.146; ^aP < 0. 001

^bF = 20.12; ^bP < 0. 001

^bF = 20.214; ^bP < 0. 001

^bF = 24.357; ^bP < 0. 001

^cF = 8.40; ^cP = 0. 010

^cF = 2.450; ^cP = 0.135

^cF = 8.957; ^cP = 0. 008