Reserve Bank of Australia Preliminary and incomplete; not for quotation. The views expressed in this paper are those of the authors and should not be attributed to the Reserve Bank of Australia. We would like to thank Jacqui Dwyer, David Gruen and Dean Parham for helpful comments.

In cementless stem fixation, BMD reduction around the stem is of concern because it may cause loosening. This BMD reduction is assumed to be caused by stem implantation-induced alteration of the physiological feedback system, which may cause stress shielding and result in loosening, but the causal relationship has not been clarified. In this study, using a Duetto SI stem, we investigated the co...

BACKGROUND The cementless fixation technique in total hip arthroplasty (THA) was developed to solve clinical problems such as aseptic loosening and osteolysis which were thought to be associated with the use of bone cement. This retrospective study reports our mid-term results with cementless THA. METHODS A series of 173 consecutive, unselected cementless THA procedures using the Omnifit pros...

PURPOSE To evaluate the clinical and radiological outcomes following cementless primary hydroxyapatite-coated total hip arthroplasty. METHODS A retrospective study of 69 patients (82 hips) who underwent uncemented hydroxyapatite-coated Anatomic Benoist Girard total hip replacement between October 1991 and October 1995 at our institution was conducted. Patient records were reviewed. All patien...

OBJECTIVE To radiographically evaluate the quality of cementation and implantation technique using a polished, triple-tapered femoral stem in total hip arthroplasty (THA). METHOD Retrospective study with radiographic evaluation of 86 hips in 83 patients who underwent to primary THA with the triple-tapered cemented femoral stem C-Stem (DePuy Orthopedics, Warsaw, Indiana). Cases with at least o...

Background This study aimed to compare the clinical and radiographic outcomes of using two different oversized rasps in total hip arthroplasty (THA) with a composite beam cemented stem (DCM-J). Methods A consecutive series 105 hips underwent hybrid THA DCM-J between 2006 2010. Among patients minimum 10-year follow-up, 1.5-mm rasp was used 38 (group S), whereas 0.5-mm 36 M). The Japanese Orthope...

PURPOSE To report the long-term results of total hip arthroplasty (THA) using small size Exeter femoral stems. METHODS Eight men and 34 women aged 60 to 83 (mean, 70) years underwent 45 THAs using the Exeter small stem with offsets of 30 mm (n=3), 33 mm (n=15), and 35.5 mm (n=27). The Harris hip score was assessed pre- and post-operatively. Stem alignment and axial subsidence of the stem were...

Economic Group Reserve Bank of Australia We thank colleagues in Economic Research Department and Financial System Group, especially Adam Cagliarini and David Gruen, for their suggestions. Aart Kraay generously provided some of the data used in Section 2. Any errors are ours and the opinions expressed here should not be attributed to the Reserve Bank of Australia.