Table 5.
Results
| Parameter | ISKD | LON | ||
|---|---|---|---|---|
| Final leg length discrepancy (mm) | 6.5 (0–20) | 3.5 (0–29) | ||
| Time to union (months) | 7.9 (2–31) | 4.5 (2–7.5) | ||
| Healing index (months/cm) | 3.03 (0.42–17.2) | 1.39 (0.57–4.0) | ||
| Distraction rate (mm/day) | ||||
| Greater than 1 mm/day | 1.9 (1.43–2.65) distraction rate | 10 patients (83%) | 1.10 (1.09–1.12) distraction rate | Three patients (15%) |
| 1 mm or less per day | 0.84 (0.75–0.93) distraction rate | Two patients (17%) | 0.80 (0.3–1.0) distraction rate | 17 patients (85%) |
| Final knee ROM (average degrees) | 0–126 | 0–115 | ||
ISKD = Intramedullary Skeletal Kinetic Distractor (Orthofix Inc, McKinney, TX, USA); LON = lengthening over nail.