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TECHNICAL PAPERS

Estimation of Bone Matrix Apparent Stiffness Variation Caused by Osteocyte Lacunar Size and Density

[+] Author and Article Information
Yener N. Yeni, David P. Fyhrie

Breech Research Laboratory, Bone and Joint Center, Henry Ford Hospital, 2799 West Grand Blvd., Detroit, MI 48202

Deepak Vashishth

Department of Biomedical Engineering, Rensselaer Polytechnic Institute, 110 8th St., Rm, 7046, Troy, NY 12180-3035

J Biomech Eng 123(1), 10-17 (Aug 29, 2000) (8 pages) doi:10.1115/1.1338123 History: Received September 13, 1999; Revised August 29, 2000
Copyright © 2001 by ASME
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References

Figures

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Variation of predicted modulus with octeocyte lacunar density and lacunar radius. Poisson’s ratio of the material was 0.3 in all cases.
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Variation in predicted matrix modulus with age in female vertebral cancellous bone for different lacunar radii
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Variation in predicted matrix modulus with age in male vertebral cancellous bone. No significant trend was found.
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Variation in predicted matrix modulus with age in female femoral cortical bone for different lacunar radii
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Variation in predicted matrix modulus with age in male femoral cortical bone for different lacunar radii. Nonlinear fits are in the form of A+B/Age;a=2 μm,A=20990.2,B=−413.56,r2=0.9140,r2adj=0.8997,p<10−7;a=5 μm,A=20846.4,B=−6432.40,r2=0.9140,r2adj=0.8996,p<10−7;a=10 μm,A=19765.15,B=−49859.24,r2=0.9137,r2adj=0.8993,p<10−7
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Variation of apparent matrix stiffness with lacunar density and radius for spherical pores
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Variation of apparent matrix stiffness with lacunar density and major radius for minor radius=2 μm
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Variation of apparent matrix stiffness with lacunar density and major radius for minor radius=10 μm

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