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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.