What question did this study set out to answer?

To evaluate the mechanical behavior and changes in elasticity of human cancellous bone under repetitive nondestructive axial compression.

October 1, 1985Engineering in Medicine

Material Properties of Cancellous Bone in Repetitive Axial Loading

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Authors

FLFrank LindeAarhus University Hospital IHIvan HvidOslo University Hospital NJN C JensenAarhus University Hospital

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Implication

Biomechanical study demonstrates progressive stiffening of cancellous bone in human knee specimens, highlighting its functional damping role under repetitive axial loads.

Key Points

To evaluate the mechanical behavior and changes in elasticity of human cancellous bone under repetitive nondestructive axial compression.
Machined cancellous bone specimens from human cadaver knees were subjected to repetitive axial compression up to 50% of ultimate strength predicted by photon absorption bone mineral measurement.
Specimens were compressed repeatedly up to 10 cycles with inter-cycle intervals of not more than 2 minutes to assess stiffness, elasticity, and steady-state responses.
Modulus of elasticity increased by a median of 44% from compression cycle 1 to 10, reaching a steady state after the fifth compression.
Measurement precision was Ē ± 9.8% at cycle 10 and Ē ± 5.6% across cycles 6–10 (95% confidence limits).
Modulus of elasticity was strongly linearly correlated with ultimate strength at cycle 10 (r = 0.95, p < 0.005) and across cycles 6–10 (r = 0.99, p < 0.001).

Cite This Study

Linde et al. (1985) studied this question.

synapsesocial.com/papers/6a95c3bd223f4b595a4f0ea4 https://doi.org/10.1243/emed_jour_1985_014_042_02

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Implication

Biomechanical study demonstrates progressive stiffening of cancellous bone in human knee specimens, highlighting its functional damping role under repetitive axial loads.

Material Properties of Cancellous Bone in Repetitive Axial Loading

Discussion

Member takes

Implication

Key Points

Cite This Study

Material Properties of Cancellous Bone in Repetitive Axial Loading

Discussion

Member takes

Implication

Key Points

Cite This Study

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