Table 3 Comparison of radiological and clinical data between groups

 Pre-operative

12.81 ± 4.25

14.33 ± 6.37

0.368

 Post-operative

4.76 ± 2.86^a

6.62 ± 5.00^a

0.147

 Last follow-up

6.52 ± 3.04^a

9.48 ± 5.38^a

0.035

 Pre-operative

59.13 ± 11.88

64.51 ± 15.76

0.219

 Post-operative

94.64 ± 10.22^a

93.12 ± 15.97^a

0.716

 Last follow-up

87.51 ± 10.67^a,b

78.99 ± 15.13^a,b

0.041

 Post-operative

2.6 ± 0.5

2.4 ± 0.5

0.367

 Last follow-up

1.6 ± 0.5

1.6 ± 0.5

0.760

 Post-operative

46.7 ± 15.2

48.1 ± 14.9

0.775

 Last follow-up

5.5 ± 1.4

5.5 ± 1.5

0.915