Table 2 Operation related information and post-operation evaluations

Operating duration (min)

88 ± 9.9

49.2 ± 20.5

< 0.001

Preoperative stay (hour)

59.4 ± 61.2

70.5 ± 82.9

0.687

Intraoperative blood loss (ml)

50.4 ± 11.3

18.0 ± 20.9

< 0.001

Total days in hospital (day)

12.8 ± 2.8

9.9 ± 5.4

0.081

Time to union (week)

13.6 ± 1.5

12.2 ± 1.7

0.027

Limb length discrepancy (cm)

0.37 ± 0.14

0.50 ± 0.17

0.036

KSS postoperative score

96.4 ± 2.3

97.5 ± 2.6

0.226

Valgus deformity degree (°)

1.46 ± 0.52

1.33 ± 0.49

0.700