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Table 2 Summary, biomechanical data, comparison between fixed and individualized bending setup

From: Improving results in rat fracture models: enhancing the efficacy of biomechanical testing by a modification of the experimental setup

  Fixed Span Individualized Fixed vs. Individualized
N = 20 N = 18
Weight (g) 634.5(±26.9) 641.9 (±55.5) p = 0.59
Length (mm) 42.9(±1.1) 43.1(±1.6) p = 0.63
Failure Load (N) 205.5 (±30.36) 221.0 (±18.95) p = 0.07
Stiffness (N/mm) 498.5 (±104.8) 358.1 (±34.64) p < 0.0001
  1. Means and standard deviations of weight, length, failure load and stiffness. Subgroups of femurs tested with a fixed span and heavy animals tested by the individualized setting. Both groups are not statistically significant different concerning weight or length. Though the fixed-span subgroup seems more homogenous concerning weight and lengths of the femurs, failure loads (tendency) and stiffness values (stat. significant) are more homogenous in the individualized-setting group