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Table 2 Classification and important parameters for the clinical course in 12 of 101 lengthened femora – group A = seven cases in six bilateral lengthened patients, group B = five cases in monolateral lengthening procedures – in which fractures occurred after callotasis with TENs in place

From: Prophylactic titanium elastic nailing (TEN) following femoral lengthening (Lengthening then rodding) with one or two nails reduces the risk for secondary interventions after regenerate fractures: a cohort study in monolateral vs. bilateral lengthening procedures

Group Group A – bilateral Group B - monolateral
Case with fracture no. 1 2 3 4 5 6* 7* 8 9 10 11 12
Amount of lengthening (mm) 58 60 59 61 67 60 60 43 25 48 10 30
Healing index (months/cm) 0.7 0.9 0.8 1.0 0.9 1.0 1.0 2.0 2.2 1.1 4.8 1.6
Li et al [12] types**             
removal of fixator 2–6 2–6 2–6 3–6 2–6 5–6 5-6 1–6 2–2 4–2 1–2 4–2
removal of TENs 1–6 1–9 2–9 2–9 2–9 1–9 1-9 2–9 2–9 4–9 1–10 2–10
At follow-up 2–9 2–9 2–9 2–9 2–9 2–9 2-9 2–9 2–9 2–9 1–10 2–10
Fracture type [15] 1b 1b 1b 1b 1b 1a 1a 1b 3 2 3 2
Fracture seen on day (after fixator removal) 0 0 41 41 50 22 22 28 0 46 0 0
Number of TENs used 2 2 1 1 1 1 1 2 2 2 2 2
TENs wearing time (days) 98 133 126 97 100 179 179 151 154 152 302 162
  1. *Case 6 and 7 same patient, both sides fractured; ** read data a follows: regenerate feature: fusiform (type 1–5) – density: homogeneous intermediate (type 1–9); see also Table 1 and Figure 1.