Skip to main content

Table 1 Biomechanical measurements (stiffness, elastic limit, failure stiffness, failure load) and the distal medial and lateral column interfragmental displacements without loading force in axial loading and posterior bending directions after the 5000-cycle fatigue test for the parallel, Y, and posterior two plating group

From: Does posterior configuration have similar strength as parallel configuration for treating comminuted distal humerus fractures? A cadaveric biomechanical study

  Parallel plating Y plating Posterior two plating P-value (Kruskal-Wallistest)
Axial loading
 Stiffness (50-200N)(N/mm 590.20 ± 125.93 632.35 ± 182.44 607.50 ± 91.91 0.981
 Elastic limit (N) 377.36 ± 115.34 502.96 ± 214.44 357.49 ± 132.23 0.491
 Failure stiffness (N/mm) 500.73 ± 165.18 460.13 ± 33.94 517.27 ± 105.15 0.595
 Failure load (N) 1795.87 ± 413.66 1181.36 ± 249.11 1309.14 ± 274.26 0.116
 Lateral column displacement (mm) 1.60 ± 1.64 1.38 ± 0.89 1.62 ± 0.85 0.594
 Medial column displacement (mm) 1.88 ± 2.36 2.28 ± 0.79 0.80 ± 0.58 0.155
Posterior bending
 Stiffness (50-200N)(N/mm) 181.61 ± 58.81 34.76 ± 11.04 309.87 ± 97.99 0.004
 Elastic limit (N) 185.26 ± 36.42 157.10 ± 22.11 171.12 ± 56.12 0.566
 Failure stiffness (N/mm) 80.38 ± 29.49 18.05 ± 4.88 174.80 ± 59.20 0.002
 Failure load (N) 568.86 ± 202.13 283.31 ± 38.16 594.52 ± 122.95 0.009
 Lateral column displacement (mm) 1.83 ± 0.81 10.73 ± 6.04 2.18 ± 0.73 0.008
 Medial column displacement (mm) 2.45 ± 2.55 15.36 ± 7.59 1.63 ± 0.59 0.009
  1. Significantly the lowest with post-hoc test (Mann-Whitney U-test; supplementary table 1) for pairwise comparisons, p < 0.05
  2. Significantly the highest with post-hoc test (Mann-Whitney U-test; supplementary table 1) for pairwise comparisons, p < 0.05