Table 2 Radiographic findings the patients between pre and post operation

FTA

183.8 ± 3.4° (180 ~ 190°)

168.0 ± 3.3°(164 ~ 174°)

P < 0.00001

MPTA

81.6 ± 3.0°

94.7 ± 3.6°

P < 0.00001

Posterior slope angle

6.9 ± 2.6°

5.0 ± 3.6°

P = 0.024

Insall-Salvati ratio

1.0 ± 0.2

0.94 ± 0.2

P = 0.033

Caton-Deschamps (C-D) index

0.94 ± 0.2

0.8 ± 0.2

P = 0.008