Hydroxyapatite stress analysis

Residual Stresses in Plasma-Sprayed Hydroxyapatite Coatings 7.6.6.1 Stress Analysis by X-ray Diffraction... 

To answer the question whether heterotopically formed bone, induced by hydroxyapatite, oc- and [3-TCP and biphasic HAp/TCP (BCP), would disappear over time due to the absence of mechanical stresses and whether this heterotopically formed bone would give rise to uncontrolled growth, a long-time investigation over 2.5 years was conducted (Yuan et al., 2001). Porous hydroxyapatite ceramic (HAp), porous biphasic calcium phosphate ceramic (TCP/HAp, BCP), porous a-TCP ceramic and porous P-TCP ceramic were implanted in the dorsal muscles of dog with an observation time of 2.5 years. Histological observation, backscattered scanning electron microscopy observation and histomorphometric analysis were performed on thin non-decalcified sections of retrieved samples. Normal compact bone with bone marrow was found in... 

Lodini, A. (2004) Thermal residual stresses near the interface between hydroxyapatite coating and titanium substrate finite element analysis and synchrotron radiation measurements. /. Biomed. Mater. Res. Part A, 70, 20-27. 

Fogarassy, P., Cofino, B., Millet, P., and Lodini, A. (2005) Residual stress in hydroxyapatite coating nonlinear analysis and high energy synchrotron measurements. IEEE Trans. Biomed. Eng., 22 (7), 1161-1166. 

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