Abstract：
:Human compact bone may be viewed as a fiber reinforced composite material in which the secondary osteons act as the fiber reinforcements. The cement line, which is the interface between the 'fibers' (osteons) and extraosteonal bone matrix, may impart important mechanical properties to compact bone. The nature of these properties is not known partly because the composition of the cement line is unknown. This analysis examines the constituents of the osteon cement line using scanning electron microscopy and X-ray microprobe analysis to address its biomechanical functions as a local interface. The analysis suggests that the cement line is a region of reduced mineralization which may contain sulfated mucosubstances. This composition is consistent with the hypothesis that the cement line provides a relatively ductile interface with surrounding bone matrix, and that it provides the point specific stiffness differences, poor 'fiber'-matrix bonding and energy transfer qualities required to promote crack initiation but slow crack growth in compact bone.
journal_name
J Biomechjournal_title
Journal of biomechanicsauthors
Burr DB,Schaffler MB,Frederickson RGdoi
10.1016/0021-9290(88)90132-7subject
Has Abstractpub_date
1988-01-01 00:00:00pages
939-45issue
11eissn
0021-9290issn
1873-2380pii
0021-9290(88)90132-7journal_volume
21pub_type
杂志文章abstract：:Limb asymmetry is a known factor for increased ACL injury risk. These asymmetries are normally observed during in vivo testing. Prior studies have developed in vitro testing methodologies driven by in vivo kinematics to investigate knee mechanics relative to ACL injury. The objective of this study was to determine if ...
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journal_title：Journal of biomechanics
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journal_title：Journal of biomechanics
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