The Role Of Osteocytes In Particle Induced Osteolysis
Funder
National Health and Medical Research Council
Funding Amount
$457,196.00
Summary
Hip replacements often fail due to the loss of adjacent bone. Metal or polyethylene particles are produced as the prosthesis bearing surface wears but how do these particles lead to bone loss? Our work suggests involvement of osteocytes within the bone mineral, which are increasingly understood to drive bone physiology and pathology. We will explore the role of the osteocytes by examining their response to particles, which may identify a new target to prevent particle-induced bone loss.
The reality of China's socialist market economy: the emergence of labour segmentation and inequality. Australia's current regional and economic security is predicated on China's stability and prosperity. This project provides a unique opportunity for Australian organisations and institutions to gain a better understanding of the complex economic, regulatory and social issues that surround the problem of labour segmentation and inequality in China.
Determination Of Irradiation Dose Efficacy For Use In Impaction Grafting At Revision Joint Replacement
Funder
National Health and Medical Research Council
Funding Amount
$411,517.00
Summary
Primary hip replacement is a successful intervention for hip disease, but 10-15% of hip prostheses fail and require revision surgery within 10-15 years. At the time of revision, significant bone loss around the failed prosthesis is not uncommon. A bone reconstruction procedure, called impaction grafting, where donor bone is minced and placed in the areas of deficient bone before implanting the new prosthesis, has shown to give good results at more than ten years in some centres. A high incidence ....Primary hip replacement is a successful intervention for hip disease, but 10-15% of hip prostheses fail and require revision surgery within 10-15 years. At the time of revision, significant bone loss around the failed prosthesis is not uncommon. A bone reconstruction procedure, called impaction grafting, where donor bone is minced and placed in the areas of deficient bone before implanting the new prosthesis, has shown to give good results at more than ten years in some centres. A high incidence of early complications of this procedure have included loss of fixation within the bone. Fracture of the bone around prostheses has also reported in some centres. These events require more surgery, putting the patient at higher risk greater complications and longer rehabilitations. Recent improvements in surgical technique and donor bone preparation have improved results. A current debate questions whether the dose of irradiation can be reduced from 25 kGy, while maintaining sterility of allografts. The risk of bacterial contamination in allografts is low, and irradiation reduces the mechanical strength of the graft, contributing to complications when irradiated bone is used. The benefits of decontaminating the bone may be outweighed by the higher risk for failure due to poor bone quality and resulting prosthesis instability. We will use ISO standards to test the validity of radiation dose for sterilising bone ex vivo. In the absence of controlled human studies, our aim is also to compare the results of impaction grafting with non-irradiated bone versus bone irradiated at current doses used by Australian bone banks, and lower doses indicated by ex vivo testing. We will use a large animal model of revision hip replacement, with precise measures of prosthesis stability. The results of this study will guide clinical decisions regarding the efficacy of current bone graft preparation procedures and the use of irradiated bone in human hip replacement surgery.Read moreRead less
Carbon neutral communities: making the transition. This project has well defined National benefits, both economic and social, for the collaborative partners, the business community, policy makers, community groups and the broader Australian community. It contributes toward NRP 1, through developing practical measures for reducing GHG emissions in Australian urban areas, and strategies for overcoming barriers to greater uptake of energy efficiency and alternative technologies; and helping Austra ....Carbon neutral communities: making the transition. This project has well defined National benefits, both economic and social, for the collaborative partners, the business community, policy makers, community groups and the broader Australian community. It contributes toward NRP 1, through developing practical measures for reducing GHG emissions in Australian urban areas, and strategies for overcoming barriers to greater uptake of energy efficiency and alternative technologies; and helping Australia to meet its greenhouse reduction targets. The project economic benefits to through energy savings; stimulating innovation in urban design, building design and transport use; promoting new business opportunities; and encouraging more sustainable lifestyle decisions. Read moreRead less
Campus: Building Modern Australian Universities. This project plans to examine the post-World War Two evolution of the Australian university campus. Modern campuses created opportunities for the realisation of innovative solutions in urban planning, architecture and landscape. The project plans to reveal the physical impacts of political, institutional, social and cultural demands through comparative thematic investigation, digital visualisation and detailed case studies. Foregrounding landscape ....Campus: Building Modern Australian Universities. This project plans to examine the post-World War Two evolution of the Australian university campus. Modern campuses created opportunities for the realisation of innovative solutions in urban planning, architecture and landscape. The project plans to reveal the physical impacts of political, institutional, social and cultural demands through comparative thematic investigation, digital visualisation and detailed case studies. Foregrounding landscape and site, the project aims to establish new historical knowledge, identify campuses as catalysts for urban thinking, and demonstrate strategies for their conservation and adaptation to meet future needs in the tertiary sector.Read moreRead less
Making Music Work: Sustainable Portfolio Careers for Australian Musicians. This project plans to explore the conditions and strategies needed for musicians to sustain successful portfolio careers. Most musicians have ‘portfolio careers’, combining aspects of performance, recording, creation, music direction, teaching, community activities, health, retail and a presence in online environments. This phenomenon — often across music genres — is widespread but not well understood. The project involve ....Making Music Work: Sustainable Portfolio Careers for Australian Musicians. This project plans to explore the conditions and strategies needed for musicians to sustain successful portfolio careers. Most musicians have ‘portfolio careers’, combining aspects of performance, recording, creation, music direction, teaching, community activities, health, retail and a presence in online environments. This phenomenon — often across music genres — is widespread but not well understood. The project involves surveys and 12 in-depth case studies of individual musicians or ensembles that will aim to identify key success factors and obstacles. This information is intended to inform opportunities for training, development and support.Read moreRead less
We will seek to address an important clinical problem in orthpaedics, namely the bone loss that commonly occurs around joint replacement prostheses. Termed peri-prosthetic osteolysis (PO), this bone loss can result in the loosening and ultimate failure and need for revision of the artificial joint components. PO is thought to be caused by the body's reaction to wear particles generated from the articulating surface of the prosthesis. However, it has not previously been possible to accurately exp ....We will seek to address an important clinical problem in orthpaedics, namely the bone loss that commonly occurs around joint replacement prostheses. Termed peri-prosthetic osteolysis (PO), this bone loss can result in the loosening and ultimate failure and need for revision of the artificial joint components. PO is thought to be caused by the body's reaction to wear particles generated from the articulating surface of the prosthesis. However, it has not previously been possible to accurately explore the relationship between prothesis wear and PO, or the progression of PO, because of a lack of techniques to image and measure the volume of PO around metal prosthesis components. We have developed a means to accurately and reproducibly measure the volume of bone loss, using CT, and will do so longitudinally in joint replacement patients to obtain the first information about the progression of PO. New computer based methods will be used concurrently to relate prosthesis wear and migration parameters to PO. Patients who come to surgery for replacement of failed prostheses will be investigated further by analysis of the tissues involved in the bone loss around prostheses. Basic science experiments will seek to understand the underlying causes of PO and the findings will be important in interpreting the clinical results. An animal model will be used to seek approaches to inhibiting the pathological response to wear particles. The significance of these studies is that they will lead to improved outcomes for joint replacement patients, increasing the interval to revision surgery, which is both extremely costly and brings an attendant morbidity and mortality.Read moreRead less
Innovative procurement theories to optimise education per cost of school. Innovative procurement theories to optimise education per cost of school. This project aims to develop a whole-of-life procurement decision-making framework so schools can make delivering better education more cost effective. This framework—which draws on state-of-the-art and Nobel prize-winning theories and a new theory the project will develop—will be used in government and private schools. The effectiveness of this fram ....Innovative procurement theories to optimise education per cost of school. Innovative procurement theories to optimise education per cost of school. This project aims to develop a whole-of-life procurement decision-making framework so schools can make delivering better education more cost effective. This framework—which draws on state-of-the-art and Nobel prize-winning theories and a new theory the project will develop—will be used in government and private schools. The effectiveness of this framework in improving schools will be shown using a new approach to make school facilities deliver educational outcomes and account for their total production and transaction costs. This research is expected to deliver more efficient ways to future-proof schools to create a well performing school system and more resilient infrastructure vital to Australia’s future prosperity.Read moreRead less
Architectural Work Cultures: professional identity, education and wellbeing. This project aims to examine the work and study cultures of architecture in Australia, in relation to professional identity, and in terms of impact on wellbeing, with a whole-of-career scope spanning education to retirement. It will generate the first comprehensive account of work-related wellbeing problems for both architectural practitioners and students, via qualitative and quantitative methods and a vigorous engagem ....Architectural Work Cultures: professional identity, education and wellbeing. This project aims to examine the work and study cultures of architecture in Australia, in relation to professional identity, and in terms of impact on wellbeing, with a whole-of-career scope spanning education to retirement. It will generate the first comprehensive account of work-related wellbeing problems for both architectural practitioners and students, via qualitative and quantitative methods and a vigorous engagement with the profession. Expected outcomes include two toolkits to assist the profession to support cultural change across educational, workplace and institutional settings. This should provide significant benefits for the wellbeing of architects at all career stages, and also support the long-term viability of the sector.Read moreRead less