Viscoelastic Mechanical Behavior of Fresh Human Bone of Lower Limbs

摘要

Despite significant developments in orthopedic medicine, prostheses and joint implants have an unlimited life span and various problems citing loosening. Indeed, they are made from a very rigid material which has a mechanical behavior different from that of the human bone. This work is about the study of mechanical behavior of the human bone like dynamic viscosity and elasticity modulus. Accentuating on the viscoelastic nature of the bone, the samples of fresh bone specimens are used directly after their removal. The dynamic viscosity of the cancellous bone was determined by relaxation test. Thirteen human cancellous bone samples of the knee joint are used. The dynamic viscosity is in the order of 8683.3 MPa.s. The dynamic viscosity of human cancellous bone can be used in femoral cement filling during bone grafting.