Active clinical trials for "Osteoarthritis"

Based on the research background and the preliminary research basis of the research group, in order to answer the material basis and micro-physical environment change characteristics of knee osteoarthritis sensitization acupoints and provide scientific basis for in-depth study of sensitization of acupoints. This study plans to use knee osteoarthritis as a research vehicle, and use microdialysis combined with high performance liquid chromatography to analyze the local material basis and key indicators of common sensitization points in knee osteoarthritis.

This study will investigate the concurrent validity and intra-rater reliability of using smartphone in assessing joint position sense in patient with knee osteoarthritis.

Patients with osteoarthritis of the knee undergo visible joint changes in radiology and Magnetic resonance imaging (MRI) tests, but also clinically and histologically. The area of greatest change is at the subchondral/cartilage bone junction. Investigators will determine the association between preoperative clinical evaluation (IKDC and Womac scores), radiological classifications and histopathology. In addition, the role of inflammation in the pathogenesis of osteoarthritis is being given major interest, and inflammation is closely linked with vascularization. It was recently demonstrated that dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) could identify the subchondral bone marrow vascularization changes occurring in osteoarthritis in animals. These changes appeared before cartilage lesions were visible and were correlated with osteoarthritis severity. Thus the opportunity to obtain an objective assessment of bone vascularization in non-invasive conditions in humans might help better understanding osteoarthritis pathophysiology and finding new biomarkers. Investigators hypothesized that, as in animals, DCE-MRI has the ability to identify subchondral bone marrow vascularization changes in human osteoarthritis.

This study sought to better identify the motivators and barriers to osteoarthritic patients practising regular physical activity. This is a crucial step towards enabling each health professional to adapt their therapy recommendations, while taking into account the patient's overall lifestyle.

This is an Individual Patient Expanded Access IND of autologous adipose derived Mesenchymal Stem Cells with the primary goal of treating 1 individual with bilateral knee pain who has exhausted all treatment options, his condition has not improved, and his quality of life is severely affected by the condition. There are no FDA approved, fully restorative treatments for his condition. The subject will receive 2 autologous HB-adMSCs intravenous infusion of 200 million (2 x 10^8 cells) total cells, and 4 autologous HB-adMSCs intra-articular injections (1 in each knee joint/ intervention).

Ganymed Robotics develops a novel solution of surgical navigation to assist surgeons during knee remplacement surgeries. The aim of this study is to train and validate this novel algorithm.

Evidence has shown that knee osteoarthritis causes an increase in base of support and a decrease in stride length and gait velocity which results in an increase in energy expenditure during walking. This increase in energy cost of walking is suggested to result in walking related performance fatigability. However, fatigue is not commonly considered in the clinical settings in term of neither assessment nor management of knee osteoarthritis. One common tool used to evaluate walking relate performance is six minute walk test and the purpose of this study is to determine the reliability of using six minute walk test to determine walking related performance fatigability in persons with knee osteoarthritis.

A retrospective consecutive population of patients treated with cementless total hip arthroplasty with ceramic-on-ceramic bearing surfaces due to post-traumatic osteoarthritis due to acetabular fractures will be selected. The aim of this retrospective study is to evaluate the long-term clinical and radiographic results of this implant in such a specific cohort. The secondary aim of the sudy is to provide the complication rate and the failure rate of the cohort. A descriptive analysis of the failures will be provided as well.

The cause of rheumatoid arthritis (RA) remains unknown, although major advances have been done these last ten years in the comprehension of its pathophysiology. The aim of this study is to described a synovial microbiota specific for rheumatoid arthritis.

The project runs as a Ph.d. project at the Faculty of Health Sciences- University of Copenhagen. In Denmark the investigators operate around 16.000 artificial hips and knees yearly, mainly due to osteoarthritis. The numbers has increased with 13,9% for hips and 50,7% for knees in the period 2004 to 2007. In 10% of the cases, or approximately 1.600 patients, the patient is younger than 50 years - mid-life, working, socially active and sexually active. The investigators have a tendency within in the orthopedic society to mainly focus on the technological aspects of the procedure and tend to forget that this is a key event for the patient with widespread consequences for the patient and his future life. Hip- and knee arthroplasties is without no doubt two of the most important and successfully surgical procedures ever introduced. The economical cost for osteoarthritis treatment has exploded in the developed world over the last decade, with a yearly growth on 8%. Because of the limited lifetime for an artificial hip or knee, this treatment can be unfortunate for the young patient. This has over the last years led to an increased interest for joint preserving surgery. Over the last twenty years it has been tried to delay the time for total hip arthroplasties for patients with hip dysplasia with the aid of Ganz osteotomy. Since this technique was introduced back in 1988, the research on the topic has had its main focus on optimizing the operation technique. So as with surgery with artificial hip or knee the investigators have a lack of knowledge regarding the social, work related, psychological and sexual aspects of this treatment. Purpose The consequences of an artificial hip or knee joint regarding patients' social-life, work, psychological and sexual aspects gain very little attention international. The investigators apply most of our research funds exclusively to research and development of the surgical track and procedure, new prosthesis designs or coatings. The investigators find this study highly relevant because this kind of studies has been preformed for several chronic diseases but not osteoarthritis and its treatment. With this study the investigators wish to examine the social, work related, psychological and sexual aspects of end stage osteoarthritis. This will lead the way for improved information to the patient and improve the surgeons' possibilities for chosen the correct time for surgery.