Skip to main content

Table 1 Summary of the three test forces and parameters of the vertebrae on micro-CT and MSCT

From: Quantitative CT-based bone strength parameters for the prediction of novel spinal implant stability using resonance frequency analysis: a cadaveric study involving experimental micro-CT and clinical multislice CT

  Measure unit Mean (standard deviation)
Test forces (n = 68)
 Peak torque N m 678 (246)
 Pull-out force N 357 (130)
 Implant stability quotient value Arbitrary units 36.5 (7.90)
Micro-CT parameters (n = 68)
 Volume bone mineral density mg/cm3 69.6 (30.5)
 Bone volume/total volume 29.6 (10.7)
 Bone surface/total volume mm−1 1.80 (0.350)
 Trabecular thickness μm 328 (73.0)
 Trabecular separation μm 863 (328)
 Trabecular number mm−1 0.876 (0.170)
 Structure model index 1.86 (0.534)
 Node number/total volume mm−3 0.647 (0.159)
Multislice CT parameters (n = 58)
 Volume bone mineral density mg/cm3 183 (28.1)
 Bone volume/total volume 91.1 (10.8)
 Bone surface/total volume mm−1 4.16 (0.903)
 Trabecular thickness μm 780 (252)
 Trabecular separation μm 81.0 (14.2)
 Trabecular number mm−1 1.28 (0.416)
 Node number/total volume mm−3 0.764 (0.0230)
  1. CT computed tomography, N Newton