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Improving The Functional Outcomes Of Lower Limb Orthopaedic Surgery
Funder
National Health and Medical Research Council
Funding Amount
$425,048.00
Summary
While orthopaedic surgery usually achieves pain relief and improves function somewhat, it can often leave a patient unable to perform certain activities. And these abnormal movement patterns are likely to cause further problems. This project will objectively measure post-surgical function, in order to improve the surgery and rehabilitation of some of the most complex orthopaedic conditions. The goal is that patients receive the maximum benefit from surgery.
A Prospective Study To Identify The Mechanical Causes And Methods For Early Detection Of Knee Osteoarthritis
Funder
National Health and Medical Research Council
Funding Amount
$431,000.00
Summary
Knee osteoarthritis is a great cost to society, financially and in quality of life. Anti-inflammatory drugs are commonly used to treat the symptoms, but many people receive joint replacements to stop pain and improve function. We need to prevent osteoarthritis, but the causes for this common disease are largely unknown. Animal studies have shown two particular mechanical factors that cause osteoarthritis, which are seen in the walking and running, or gait, patterns of some people. We call these ....Knee osteoarthritis is a great cost to society, financially and in quality of life. Anti-inflammatory drugs are commonly used to treat the symptoms, but many people receive joint replacements to stop pain and improve function. We need to prevent osteoarthritis, but the causes for this common disease are largely unknown. Animal studies have shown two particular mechanical factors that cause osteoarthritis, which are seen in the walking and running, or gait, patterns of some people. We call these pathological gait patterns as they impose larger-than-normal forces on the knee's articular surfaces. We measure these knee forces with our new computer knee model coupled with data that we measure in a gait analysis laboratory. These forces may cause knee osteoarthritis in humans, but this is still unknown. Currently there is no simple medical test to detect the early onset of knee osteoarthritis. The bones in the knee are one of the first structures to show osteoarthritic changes. Using our new computerised analysis of high definition X-ray of the knee we can identify subtle differences in the knee due to osteoarthritis. This will be compared with changes to joint assessed using MRI. Osteoarthritis develops slowly in normal people, so to study progression of knee osteoarthritis we need a human population that has a higher risk of developing the disease. Partial meniscectomy in the knee is a common surgery performed to improve knee function in those who have suffered a knee meniscus injury. However, partial meniscectomy patients have a high risk of developing knee osteoarthritis. Therefore, using partial meniscectomy patients we are investigating if pathological gait patterns cause knee osteoarthritis, measuring the development of the disease with our new X-ray methods. With the gait analysis methods we can also identify the movements that characterise these pathological gait patterns so we can formulate rehabilitation programmes to help prevent knee osteoarthritis.Read moreRead less
Outcome Of High Tibial Osteotomy For Medial Compartment Osteoarthritis Of The Knee: A Long-term Follow-up
Funder
National Health and Medical Research Council
Funding Amount
$65,070.00
Summary
In the young, active person, medial compartment osteoarthritis of the knee is a difficult problem to manage. Surgical options, such as total knee replacement, are often unsuccessful, due to functional restrictions and the need for revision surgery. An alternative is to extend the life of the arthritic knee by moving the primary weight-bearing surface to the other compartment (laterally), in an operation known as a high tibial osteotomy. This research looks at the outcome of this procedure.
In Vivo Patellofemoral Joint Measurement Using Kinematic Radiostereometric Analysis (RSA)
Funder
National Health and Medical Research Council
Funding Amount
$141,000.00
Summary
Complications following total knee joint replacement continue to be a major cause for revision surgery and leads to a significant financial burden in terms of health care expenditure. Recent studies suggest that many of these complications are associated with post-surgical pain from the patella knee cap joint, commonly termed anterior knee pain (AKP). Post-surgery AKP may be influenced by the motion of the patella. Recent prospective, randomised trials have compared clinical outcomes between peo ....Complications following total knee joint replacement continue to be a major cause for revision surgery and leads to a significant financial burden in terms of health care expenditure. Recent studies suggest that many of these complications are associated with post-surgical pain from the patella knee cap joint, commonly termed anterior knee pain (AKP). Post-surgery AKP may be influenced by the motion of the patella. Recent prospective, randomised trials have compared clinical outcomes between people with TKA in which the patellar surface is replaced (patellar resurfacing) or retained, but have been unable to accurately account for differences in patellar movement in those people with post-surgery complications. To date, studies of patellar motion after total knee replacement have been limited to two-dimensional analyses. This study addresses the technological limitations of previous trials by utilising accurate techniques for directly measuring skeletal motion using kinematic radiostereometric analysis (RSA). These data will measure patellar kinematics in three-dimensions for the first time. This information will allow optimisation of the design of TKA and the surgical techniques required for their implantation. Furthermore, the results will assist in the identification of surgical indications for patellar resurfacing, and the kinematic factors associated with anterior knee pain following total knee replacement surgery.Read moreRead less
Neuromuscular Exercise : A Novel Treatment To Reduce Symptoms And Joint Load In Medial Knee Osteoarthritis
Funder
National Health and Medical Research Council
Funding Amount
$719,199.00
Summary
There is currently no cure for knee osteoarthritis (OA). Thus treatments are needed that not only reduce symptoms but also slow disease progression. Exercise is recommended for knee OA but traditional thigh muscle strengthening exercises do not appear to be effective in all cases and may not slow the disease. This project will compare novel 'neuromuscular exercise' and compare it to traditional strengthening exercise. The results have the potential to alter current exercise prescription
A Randomised Trial Of Zoledronic Acid For Osteoarthritis Of The Knee
Funder
National Health and Medical Research Council
Funding Amount
$989,238.00
Summary
Osteoarthritis (OA) is the most common form of arthritis and is increasing markedly due to an ageing population. Despite its large disease burden, there are currently no approved disease-modifying drugs available which modify structural progression of OA. The aim of this study is to compare zoledronic acid treatment to placebo on knee structural change and knee pain over two years. It is hypothesised that zoledronic acid will reduce cartilage loss, knee pain, and bone marrow lesion size.
Substantial portions of the Australian population have some difficulty walking. People affected include children with cerebral palsy, people who've had injuries playing sport and older people with Parkinson's disease, osteoarthritis or who have had a stroke. The cost of managing arthritic conditions alone was estimated at $2.2 Billion for 2001. Gait analysis uses high technology video cameras, force transducers, muscle activity sensors and computers to record how people walk and is now being use ....Substantial portions of the Australian population have some difficulty walking. People affected include children with cerebral palsy, people who've had injuries playing sport and older people with Parkinson's disease, osteoarthritis or who have had a stroke. The cost of managing arthritic conditions alone was estimated at $2.2 Billion for 2001. Gait analysis uses high technology video cameras, force transducers, muscle activity sensors and computers to record how people walk and is now being used more and more commonly across Australia. The technology is very similar to that now being used to capture how people move for the movie industry. The technology allows us a better understanding of how people are moving and therefore of what treatments they are likely to benefit from. Melbourne now has four Gait Analysis facilities working with different patient groups and each with an international reputation for its work. These groups have combined to form the CCRE in Gait Analysis and Gait Rehabilitation under the leadership of Professor H Kerr Graham (Royal Children's Hospital) and Professor Bob Iansek (Kingston Centre, Southern Health).Read moreRead less