View clinical trials related to Osteoarthritis, Knee.
Filter by:Osteoarthritis (OA) is a prevalent disease associated with significant morbidity and is one of the most common causes of joint pain. Characterized by their chronicity, slow and progressive evolution. The overall prevalence of symptomatic knee osteoarthritis is estimated at 3.8%, with peak prevalence in the population with an average age of 50 years. The main objectives of interventions in patients with knee OA are reduced pain and improved functional capacity and exercises are widely recommended. The literature shows a lack of clinical trials verifying the effect of strengthening the hip muscles in patients with knee osteoarthritis. Thus, the aim of this study is to assess the effect of strengthening the hip abductor muscles versus hip adductor muscles in patients with symptomatic OA of the knee.
A Multi-Centre, Parallel, Double-Blind, Active comparator, Randomised phase III Clinical Trial
Hypertonic dextrose prolotherapy has been used in knee osteoarthritis (OA) clinically for a long time. However the study about the mechanism is scant. The question of biomarkers of knee OA cartilage response to hypertonic dextrose prolotherapy remains currently unresolved. On this basis, the aim of this study was to characterize the secreted protein factors behind the inflammatory potential involving the hypertonic dextrose prolotherapy of knee OA. 10~12 older than 65 years old knee OA patients will be recruited for clinical Western Ontario McMaster University Osteoarthritis (WOMAC) index, knee X ray evaluation and knee joint synovial fluid analysis before and after hypertonic dextrose prolotherapy. The expressions of inflammatory factors will be measured by a novel cytokine antibody array methodology. The study will evaluate inflammation-related cytokines in patients of knee joint synovial fluid. Human Cytokine Antibody Array that allows profiling synovial fluid production of anti and pro-inflammatory cytokines simultaneously. Altered levels of cytokine from the array membranes incubated with tissue lysates will quantitatively depict as a histogram for relative cytokine induction or reduction in the synovial fluid. The cytokines messenger ribonucleic acid levels will be quantified by quantitative reverse-transcription polymerase chain reaction and proteins expression was analyzed by Enzyme-Linked ImmunoSorbent Assay. The WOMAC Index, minimum joint space width, and Human Cytokine Antibody Array between before and after interventions will be compared. Differences between groups will be determined by the Mann-Whitney U test. For the synovial angiogenesis is accompanied with inflammatory feature in knee OA, associations between endothelial growth factor (VEGF) expression and VEGF isoforms pattern will be determined with the Spearman correlation.
This study aims to develop, evaluate and translate highly accelerated imaging sequences (each protocol under 5 minutes) for in-vivo knee Osteoarthritis applications on a standard clinical 3T scanner using novel compression sensing and parallel imaging strategies.The overarching objective of the study is to establish a non-invasive imaging biomarker based on the development of rapid relaxation mapping with compressed sensing (CS) that will be clinically useful for assessment of early Osteoarthritis. A total of 90 subjects including 30 patients with high risk of developing knee osteoarthritis (OA), 30 patients with mild OA and 30 healthy controls will be accrued.
Hip and knee osteoarthritis (OA) is an important health problem with a high prevalence and significant consequences on functional ability, perceived health, restriction of autonomy and handicap. The weight of multimorbidities and their interaction on functional ability and perceived health are left unexplored. This project will rely on the cohort KHOALA, representative, multiregional, of 881 prevalent cases (symptomatic hip and knee OA). Main objective: - to describe the evolution over time of pain, functional ability, social participation and quality of life in subjects with hip and knee OA - to identify prognosis factors of disease evolution (socio-demographic, clinical, and other health parameters) - to determine interactions with comorbidities, other personal and environmental factors (ICF model). Concurrent objective: to improve measurement of perceived health specific to hip and knee OA by the OAKHQOL by improving its metrologic performances based on item response theory. Task 1: To prepare an improved measurement scale, available as a judgment criteria for the 3rd year of cohort follow up, over the april 2010-march 2012 period, the mini-OAKHQOL Task 2: Evaluation of the cohort in 2010-2012 (year 3 of follow up) in a repeated measure design to best assess the evolution of perceived health and functional ability over time, and to identify stability of deterioration of autonomy. Perspectives: This project targets to provide public health deciders with information of good quality to help them manage determinants of perceived health in OA subjects, as essential factors to health care resource utilization in their various modalities.
This is a randomized study investigating whether identification, ligation, and burial of superficial branches of the saphenous nerve crossing the surgical field during total knee arthroplasty reduces the rate of post-operative anterior knee pain and neuralgia compared to standard total knee arthroplasty.
Osteoarthritis leads to reduced independence and quality of life. Total hip replacement is a successful and cost-effective surgical intervention to relieve pain and improve functioning in patients with osteoarthritis. Research has shown that preoperative health status strongly predicts outcomes including physical function and hospitalization length after hip replacement surgery. Frail patients, in particular, are at greater risk of poor postoperative outcomes and could potentially benefit from interventions targeting an improvement in their health status prior to undergoing a hip or knee replacement surgery. Partnering with the YMCA and a multi-disciplinary team of healthcare providers, this pilot trial will examine the feasibility of a multi-modal intervention for frail patients that includes a supervised exercise program, vitamin D and protein supplementation, and a medication review. The results of this feasibility study will guide the design of a future multi-centre study, which if successful, could be developed into a routine model of care that is implemented in joint replacement programs across Ontario and ultimately improving the lives of frail seniors undergoing hip or knee replacement.
The purpose of this study is to quantify differences in joint mechanics between different types of walking in healthy individuals and individuals with knee pathology. The investigators will determine how modifying gait through feedback and/or cutaneous stimulation changes joint loading.
The purpose of the study is to identify things that influence the ability to "turn on" the thigh muscle (quadriceps). The thigh muscle tends to be under active with knee osteoarthritis, which may make it difficult to strengthen the muscle. The investigators are also testing a new technology called repetitive transcranial magnetic stimulation (rTMS) to determine whether it may help "turn up" activity in the under active thigh muscle immediately after its application. rTMS uses a targeted pulsed magnetic field, similar to what is used in an MRI (magnetic resonance imaging) machine to send an electrical signal from the brain to the thigh muscle.
Static imaging has been commonly and clinically accepted to assess the severity of medial knee osteoarthritis (KOA), especially the radiography. Gait analysis has been adopted to evaluate the kinematic characteristics of the knees in patients with KOA. Most of the current studies focus on the sagittal plane of the knee, but very few of them focus on the frontal or horizontal plane. With the different severity of medial KOA, anatomical structures of the knees will change and influence kinematics of the knees, such as osteophytes and deformity. At present, there has been no study focusing on the relations between the imaging assessment of the severity and quantitative kinematics of medial KOA. The aim of the study is to explore the relationship between the imaging assessment based on the Kellgren-Lawrence Scores and in vivo 3D knee kinematic characteristics in Chinese patients with medial KOA during walking using a new portal gait system.