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Table 2 Bone mineral density, micro-architectural and biomechanical parameters measured with HRpQCT at the uninstrumented and instrumented distal radius and the percent difference between them

From: Distal radius plate of CFR-PEEK has minimal effect compared to titanium plates on bone parameters in high-resolution peripheral quantitative computed tomography: a pilot study

Bone parameter

Radius #1

Radius #2

Radius #3

Un-instrumented

Instrumented (CFR-PEEK)

Error (Ī”%)

Un-instrumented

Instrumented (Titanium)

Error (Ī”%)

Un-instrumented

Instrumented (Titanium)

Error (Ī”%)

vBMD

ā€ƒDtot [mgHA/cm3]

273

266

(āˆ’2.5)

343

520

(+51.8)

229

245

(+6.7)

ā€ƒDtrab [mgHA/cm3]

146

145

(āˆ’0.8)

181

304

(+67.2)

62

80

(+30.2)

ā€ƒDcort [mgHA/cm3]

862

848

(āˆ’1.6)

839

1004

(+19.6)

853

850

(āˆ’0.3)

Microā€‰āˆ’ā€‰architecture

ā€ƒBV/TV [āˆ’]

0.122

0.121

(āˆ’1.2)

0.152

0.253

(+67.0)

0.052

0.067

(+30.1)

ā€ƒTb.N [mmāˆ’1]

1.58

1.54

(āˆ’2.2)

1.92

2.98

(+55.0)

0.96

1.06

(+10.5)

ā€ƒTb.Th [mm]

0.077

0.079

(+1.9)

0.079

0.085

(+7.6)

0.054

0.064

(+17.6)

ā€ƒTb.Sp [mm]

0.557

0.571

(+2.6)

0.442

0.251

(āˆ’43.2)

0.996

0.885

(āˆ’11.2)

ā€ƒCt.Th [mm]

0.94

0.91

(āˆ’3.2)

1.01

1.29

(+27.2)

0.76

0.76

(+0.7)

Biomechanical

ā€ƒScomp [N/mm]

150

147

(āˆ’1.9)

133

143

(+7.5)

70

69

(āˆ’1.0)

ā€ƒF.Ult [kN]

7.17

7.06

(āˆ’1.5)

6.24

6.85

(+9.8)

3.28

3.28

(+0.1)

  1. Abbreviations: vBMD volumetric bone mineral density, Dtot total density, Dtrab trabecular density, Dcort cortical density, BV/TV bone to total volume, Tb.N trabecular number, Tb.Th trabecular thickness, Tb.Sp trabecular separation, Ct.Th cortical thickness, Scomp compression stiffness, F.Ult ultimate failure load