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Table 2 Maximum load and displacement at specific cycles for each group

From: Intramedullary cortical bone strut improves the cyclic stability of osteoporotic proximal humeral fractures

Parameter

Non-augmented group

Augmented group

P-value

Failure load (N)

991 (98)

1988 (309)

<0.001

Displacement at 100 cycles (mm)

1.6 (0.38)

0.7 (0.26)

0.01

Displacement at 1000 cycles (mm)

1.9 (0.40)

0.9 (0.38)

0.02

Displacement at 3000 cycles (mm)

2.5 (0.58)

1.3 (0.52)

0.02

Displacement at 6000 cycles (mm)

3.1 (0.75)

1.7 (0.65)

0.03

Displacement at failure load (mm)

5.7 (0.72)

3.5 (0.98)

0.01

  1. Mode of failure: varus collapse with loss of screw fixation in all specimens
  2. Values in bracket are standard deviation