Table 3 The stresses in the plates at different wedge openings
Fixation | Wedge opening (mm) | maxσz(tensile stress) | minσz(compression stress) | misσ (share von Mises stress) |
|---|---|---|---|---|
First generation Puddu plate | 7.5 | 10.2 | −31.9 | 37.5 |
10.5 | 15.8 | −38.1 | 48.6 | |
12.5 | 18.9 | −33.2 | 42.4 | |
17.5 | 22.9 | −34.9 | 49.7 | |
22.5 | 34.3 | −28.9 | 34.7 | |
Second generation Puddu plate | 7.5 | 46.2 | −55.3 | 43.2 |
10.5 | 45.9 | −52.5 | 42.9 | |
12.5 | 45.5 | −48.5 | 47.2 | |
17.5 | 44.1 | −43.4 | 48.2 | |
22.5 | 55.9 | −69.0 | 52.6 | |
TomoFix plate with bone graft | 7.5 | 35.0 | −94.1 | 91.8 |
10.5 | 37.5 | −99.1 | 97.7 | |
12.5 | 39.0 | −104.0 | 102.0 | |
17.5 | 41.5 | −109.0 | 108.0 | |
22.5 | 42.0 | −115.0 | 110.0 | |
TomoFix plate without bone graft | 7.5 | 79.3 | −200.0 | 205.0 |
10.5 | 80.6 | −197.0 | 204.0 | |
12.5 | 79.4 | −197.0 | 205.0 | |
17.5 | 79.5 | −193.0 | 205.0 | |
22.5 | 79.9 | −200.0 | 208.0 |