Table 1 Summary of Results: The mean, median, standard deviation and range are shown for the different measurements made on the 20 bone samples from the 20 patients.

From: Computed tomography porosity and spherical indentation for determining cortical bone millimetre-scale mechanical properties

Measurement

Mean

Median

Standard Deviation

Range

Density (mg/mm3)

1.8

1.8

0.12

1.4 to 2.0

CT Porosity (%)

11.2

9.3

8.4

2.4 to 40.0

RUS E3 Modulus (GPa)

17.7

18.6

3.1

10.4 to 22.8

Bulk Wave US C33 (GPa)

30.1

30.5

2.2

24.8 to 33.8

Indentation Modulus (GPa)

4.6

4.7

1.1

1.3 to 8.0

Compression Modulus (GPa)

9.6

9.7

2.9

2.3 to 13.9

Ultimate Compressive Strength (MPa)

125.6

128.0

26.2

60.0 to 180.0

Bone Mineral Density by Ashing (mg/mm3)

1.0

1.0

0.12

0.7 to 1.2

  1. Note n = 20 for all measurements except for the resonant ultrasound spectroscopy (RUS) measurements where one sample could not be measured (n = 19 for RUS results). Note, the full data set can be viewed in Supplementary Materials 3.
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