NDLI: Mechanical strain threshold for lamellar bone formation

Content Provider	IEEE Xplore Digital Library
Author	Turner, C.H. Forwood, M. Rho, J.-Y. Yoshikawa, T.
Copyright Year	1993
Description	Author affiliation: Indiana Univ., Indianapolis, IN, USA (Turner, C.H.; Forwood, M.; Rho, J.-Y.; Yoshikawa, T.)
Abstract	Bone formation was measured in rats' tibiae after 12 days of applied loading. Bending forces were applied to the right tibia through a four-point loading apparatus. Sham loads were applied at the same magnitudes as bending forces but the loading pads were arranged so that bending was minimized. Loading was applied as a sine wave with a frequency of 2 Hz for 18 seconds (36 cycles) per day. The peak magnitude of applied load varied from 27 to 64 N. Lamellar bone formation was stimulated by applied bending of the tibia, but not by sham loading. Bending strains above a strain threshold of 1050 mu strain increased both double-labeled surface and the mineral apposition rate and subsequently increased the bone formation rate as much as 6-fold. No evidence of increased bone formation was seen for applied strains below 1050 mu strain.<>
Starting Page	248
Ending Page	250
File Size	294420
Page Count	3
File Format	PDF
ISBN	0780309766
DOI	10.1109/SBEC.1993.247425
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1993-04-02
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Capacitive sensors Bones Rats Orthopedic surgery Frequency Minerals Microscopy Mechanical engineering Anatomy Mechanical variables measurement
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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