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Table 3 The stresses in the plates at different wedge openings

From: Comparison of theoretical fixation stability of three devices employed in medial opening wedge high tibial osteotomy: a finite element analysis

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