On the calculation of bone pore water pressure due to mechanical loading

✍ Scribed by Dajun Zhang; Sheldon Weinbaum; Stephen C Cowin

• Book ID: 104141587
• Publisher: Elsevier Science
• Year: 1998
• Tongue: English
• Weight: 404 KB
• Volume: 35
• Category: Article
• ISSN: 0020-7683
• DOI: 10.1016/s0020-7683(98)00105-x

✦ Synopsis

The purpose of this paper is to calculate the bone ~uid pressure in the lacunarÐcanalicular porosity of the cortical bone matrix induced by functional mechanical loading and compare it with that induced by the blood pressure di}erences[ This problem reduces to the problem of determining the bone ~uid pressure in a representative axially compressed osteon which is approximately an annular cylindrical structure[ Two available poroelastic approximations\ a beam analogy model and a single osteon model\ are compared and discussed[ We _nd that ] "0# at the lacunarÐcanalicular porosity of a typical load!carrying long bone\ normal physiological loading induces a bone ~uid pressure that is at least 39 times larger than that induced by the blood pressure di}erences ^"1# the solutions of the beam analogy model and the single osteon model approach each other as the exterior!to!interior radius ratio of the osteon approaches one[ Þ 0887 Elsevier Science Ltd[ All rights reserved