Value | ||
---|---|---|
Sex (male/ female) | 198 / 116 | |
Laterality (right/ left) | 290 / 304 | |
Age at surgery (years) | 7.9 ± 3.7 (3.4–20.0) | |
Age at final follow-up (years) | 10.6 ± 4.6 (5.3–26.8) | |
Follow-up duration (years) | 2.7 ± 2.9 (1.0–14.7) | |
No. of follow-up | 2 (2–4) | |
Preoperative popliteal angle (degree) | 58.1 ± 13.3 | |
Preoperative knee flexion contracture (degree) | 2.2 ± 5.3 | |
Concomitant surgery | Limbs | |
Intramuscular psoas lengthening | 55 (9.3%) | |
Femoral derotation osteotomy | 314 (52.9%) | |
Rectus femoris transfer | 443 (74.6%) | |
Tendo-Achilles lengthening | 382 (64.3%) | |
Strayer procedure | 147 (24.7%) | |
Gait parameters | Preoperative | Postoperative |
Mean pelvic tilt (°) | 16.7 ± 6.7 | 17.5 ± 6.1 |
Knee flexion at initial contact (°) | 33.6 ± 11.8 | 24.6 ± 9.9 |
Minimum knee flexion in stance (°) | 11.3 ± 14.1 | 6.5 ± 10.8 |
Knee range of motion (°) | 47.1 ± 15.4 | 52.5 ± 11.9 |
Gait deviation index | 69.9 ± 10.2 | 79.8 ± 9.6 |