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Table 4 Summary of results for Metacarpal Shaft (MS) 2 & 3 regions of interest (n = 10)

From: A customized protocol to assess bone quality in the metacarpal head, metacarpal shaft and distal radius: a high resolution peripheral quantitative computed tomography precision study

Variables

Mean (SD)

ICC (0.000-1.000)

Mean coefficient of variation (CV%)

Root mean square CV (RMSCV%)

Least significant change% (LSC%95)

MS3

MS2

MS3

MS2

MS3

MS2

MS3

MS2

MS3

MS2

Density (Apparent)

Full bone (mgHA/cm3)

vBMDfull

1181 (207)

1230 (180)

0.994

0.981

0.88

1.8

1.2

2.9

3.3

7.9

Cortical (mgHA/cm3)

vBMDcort

1482 (173)

1492 (172)

0.993

0.996

0.83

0.49

1.0

0.80

2.8

2.2

Density (Material)

Cortical (mgHA/cm3)

vTMDcort

1568 (194)

1564 (199)

0.996

0.997

0.57

0.66

0.72

1.0

2.0

2.8

Cortical bone

Thickness (mm)

CtTh

1.8 (0.37)

2.0 (0.34)

0.989

0.989

1.5

1.7

1.9

1.9

5.3

5.1

Porosity (%)

CtPo

0.29 (0.31)

0.31 (0.22)

0.790

0.949

16.7

29.0

18.8

36.0

52.2

99.7

Volume (mm3)

BVcort

374 (101)

412 (109)

0.998

0.998

0.97

0.93

1.3

1.1

3.6

3.1

Section modulus-major (mm3)

SMcort

55 (20)

61 (23)

0.998

0.997

1.2

1.4

1.4

1.7

3.9

4.9

Polar moment of inertia (mm4)

pMOIcort

476 (234)

535 (256)

0.999

0.998

0.87

1.9

1

2.0

2.8

5.6

Full bone

Volume (mm3)

BVfull

475 (120)

499 (126)

0.997

0.997

0.77

0.97

1.0

1.1

2.8

3.1

Volume fraction (%)

BV/TVfull

76 (9)

80 (7)

0.991

0.976

0.71

1.2

0.82

1.5

2.3

4.2

Marrow space diameter (mm)

MSdia

2.6 (0.87)

2.6 (0.73)

0.961

0.979

5.7

3.9

7.4

4.9

20.5

13.6

Section modulus – major (mm3)

SMfull

52 (20)

58 (23)

0.997

0.998

1.4

1.1

1.7

1.5

4.6

4.0

Polar moment of inertia (mm4)

pMOIfull

444 (232)

498 (254)

0.998

0.998

1.3

1.7

1.6

1.8

4.3

5.1