Table 1 Patients demographics and physical examinations
| Â | Patients | Normal controls | P |
|---|---|---|---|
Number of subjects | 36 | 36 | 1.0 |
Age (years) | 16.4 (8.9, 7 to 38) | 16.4 (8.9, 7 to 38) | 1.0 |
Sex (M:F) | 24:12 | 24:12 | 1.0 |
GMFCS level (I/II) | 4/32 | - | - |
Physical examinations | Â | Â | Â |
 Thomas test | 6.1 (7.7) | 0.0 (0.0) | 0.003 |
 Popliteal angle (unilateral) | 67.1 (13.6) | 28.0 (8.4) | <0.001 |
 Popliteal angle (bilateral) | 46.1 (16.7) | 18.9 (9.0) | <0.001 |
 Ankle dorsiflexion (knee 90° flexion) | 21.1 (8.3) | 28.1 (10.4) | 0.015 |
 Ankle dorsiflexion (knee 90° extension) | 7.6 (7.1) | 10.0 (8.8) | 0.323 |