We thank David Gruen and Geoff Shuetrim for comments. The views expressed in this paper are those of the authors and do not necessarily reflect the views of the Reserve Bank of Australia.

I thank David Gruen for helpful comments and take responsibility for any remaining errors. The views expressed herein are mine and they do not necessarily reflect the views of the Reserve Bank of Australia.

We would like to thank David Gruen, Jenny Wilkinson and other members of the Economic Research Department for their comments and suggestions. The views expressed in this paper are those of the authors and do not necessarily reflect the views of the Reserve Bank of Australia. The authors are solely responsible for any errors.

The opinions expressed here are those of the authors and should not be attributed to the Reserve Bank of Australia. We are indebted to a number of colleagues for helpful discussion, particularly Palle Andersen, David Gruen, Philip Lowe and Jenny Wilkinson. We also thank John Simon for excellent assistance with computing.

Hydroxyapatite-coated standard anatomical and customised femoral stems are designed to transmit load to the metaphyseal part of the proximal femur in order to avoid stress shielding and to reduce resorption of bone. In a randomised in vitro study, we compared the changes in the pattern of cortical strain after the insertion of hydroxyapatite-coated standard anatomical and customised stems in 12...

BACKGROUND AND PURPOSE Dual-energy X-ray absorptiometry (DXA) is a precise method to study changes in bone mineral density (BMD), including the pattern of bone remodeling around an implant. Results from implant studies are usually presented as changes in BMD as a function of time. The baseline and reference value for such calculations is the first measurement after the operation. The baseline m...

We would like to thank Philip Lowe, Lars Svensson and David Gruen for helpful suggestions. We are extremely grateful to Luci Ellis for training us in the use of Mathematica 3.0. Any remaining errors are ours. The views expressed are those of the authors and should not be attributed to the Reserve Bank of Australia.