Table 4 Comparison of imaging findings between the two groups postoperatively

HKA (°)

178.7 ± 1.3

177.8 ± 2.2

0.041

Outlier (≥3°)

2 (5.9%)

12 (38.7%)

0.001

FFC (°)

90.9 (90.5, 92.3)

92.4 (91.3, 93.7)

0.031

Outlier (≥3°)

6 (17.6%)

10 (32.3%)

0.172

FTC (°)

89.6 ± 1.8

89.0 ± 2.2

0.233

Outlier (≥3°)

4 (11.7%)

4 (12.9%)

0.889

LFC (°)

11.0 ± 3.1

10.4 ± 3.2

0.462

Outlier (≥3°)

11 (32.3%)

11 (35.5%)

0.410

LTC (Diff. from Optimum,°)

0.9 (0.3, 1.0)

1.4 (0.6, 2.3)

0.019

Outlier (≥3°)

1 (2.9%)

1 (3.2%)

0.914