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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