Table 4 Comparisons of preoperative and 5-year postoperative clinical and radiological outcomes

FTA (°)

184.0 (4.4)

173.6 (3.4)

< 0.0001

MA (%)

1.8 (18.4)

48.3 (12.5)

< 0.0001

Insall–Salvati ratio

1.1 (0.13)

1.0 (0.15)

0.1521

Caton–Deschamps index

1.0 (0.11)

0.98 (0.11)

0.4606

Tilting angle (°)

5.5 (3.4)

4.6 (4.4)

0.1583

Congruence angle (°)

9.3 (9.0)

9.3 (10.0)

0.6018

Lateral shift ratio (%)

7.8 (5.4)

14.8 (6.0)

< 0.0001

Condylar twist angle (°)

2.7 (1.8)

2.8 (1.7)

0.9525