A Study of Mechanical Properties of Human Femoral Heads Using Nanoindentation

Abstract:

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Human bone fracture associated with osteoporosis was hypothesized to be related to the alteration of mechanical properties in bones. In this work, cortical and trabecular bones from human femoral heads were studied. Bone samples of eight female and four male patients, with ages varying from 37 to 93 years, were collected from total hip replacement surgery. Reduced modulus (Er) and hardness (H) of osteons, interstitial lamellae and trabeculae were characterized by nanoindentation. The results showed both the reduced modulus and hardness of the interstitial lamellae were significant higher than those of osteons and trabeculae. Though there was no significant difference in microstructures in the Group A (age < 60 years) and B (age > 60 years), the Group B bones demonstrated to be stiffer.

Info:

Periodical:

Advanced Materials Research (Volumes 126-128)

Edited by:

Yunn-Shiuan Liao, Chao-Chang A. Chen, Choung-Lii Chao and Pei-Lum Tso

Pages:

957-962

DOI:

10.4028/www.scientific.net/AMR.126-128.957

Citation:

C. L. Lin et al., "A Study of Mechanical Properties of Human Femoral Heads Using Nanoindentation", Advanced Materials Research, Vols. 126-128, pp. 957-962, 2010

Online since:

August 2010

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Price:

$35.00

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