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Table 3 Structural properties by three-point bending analysis

From: Changes over time in callus formation caused by intermittently administering PTH in rabbit distraction osteogenesis models

 

6 weeks

8 weeks

10 weeks

 

Control

PTH30

P-values

Control

PTH30

P-values

Control

PTH30

P-values

n

5

5

 

5

5

 

4a

5

 

Work to failure (N.mm)

224 ± 35

370 ± 243

ns

170 ± 77

583 ± 86b

P < 0.05

587 ± 241c

639 ± 105b

ns

Peak load (N)

326 ± 40

474 ± 177

ns

304 ± 72

436 ± 156

ns

443 ± 204

339 ± 50

ns

Stiffness (MPa)

337 ± 90

454 ± 225

ns

454 ± 39

427 ± 72

ns

389 ± 66

338 ± 148

ns

  1. Work to failure absorption energy until callus fracture, peak load peak force to make callus fracture, stiffness the slope of the linear portion of the load-deformation curve
  2. aThe data from one of five rabbits were omitted due to experimental failure
  3. b P < 0.05, compared to 6 weeks in PTH30 group
  4. c P < 0.05, compared to 6 and 8 weeks in control group
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Journal of Orthopaedic Surgery and Research

ISSN: 1749-799X