Active clinical trials for "Osteoarthritis, Knee"

A Pilot study Randomized and Double-blinded Placebo controlled In 2 parallel group (JOINS 200mg:Placebo = 1:1) Overall 24 months treatment (JOINS:Placebo comparison up to 12 months, Additional follow-up assessment up to 24 months) Provide rescue medicine throughout whole clinical trial period.

The purpose of this study is to determine the comparative safety and efficacy of intra-articular injection of hyaluronic acid, obtained from two different sources, in the treatment of osteoarthritic pain of the knee.

Previous studies have indicated that patient expectations, beliefs and preferences may have an impact on treatment outcomes. The KIVIS study was primarily designed to compare two effective treatments for knee osteoarthritis (tidal irrigation (medical washout of the knee) or intra-articular corticosteroid injection). At study entry any preference expressed by the patient for each of the treatment interventions was recorded. This study assessed the effects of two treatments given at a single time-point and hence the effects of patient preference could be assessed independently of any compliance issues.

We are exploring a unique weight-training program for men and women 55 years or older with knee osteoarthritis (OA) that emphasizes high-speed movements. We believe that the speed at which muscles move may be more important to the improvement of muscle performance, function and pain than how strong the muscles are. We are comparing high-speed power training with traditional strength training to determine which method has the greatest effects on muscle strength, muscle power, speed of movement, functional performance and pain. We believe that high-speed training will improve these measures to a greater extent than simply training for increased muscle strength.

The purpose of the Staying Active with Arthritis (STAR) research study is to determine if a 6-month program will improve leg exercise, fitness walking, and clinical outcomes (function, blood pressure, leg strength, pain, fatigue, and health-related quality of life) in older adults with osteoarthritis of the knee and high blood pressure.

Heat therapy is frequently prescribed to patients with symptomatic knee osteoarthritis (OA). Deep hyperthermia via localized microwave diathermy is effective in several musculoskeletal painful conditions. However, the efficacy of superficial heating is controversial. Furthermore, no clinical trials have yet directly compared the effects of these treatment modalities in knee OA. Hence, the purpose of the present study is to compare the effects of deep and superficial hyperthermia, induced via microwave diathermy and hot packs, respectively, on pain and function in patients with symptomatic knee OA.

Background and purpose: In the early phase after a total knee replacement (TKA), patients experience a decrease in leg muscle strength with up to about 80%. This considerable loss of muscle strength is related to reduced functional performance at this point in time. As the loss of muscle strength and functional performance is most pronounced early after TKA, rehabilitation including strength training initiated early after TKA seems a logical choice. However, tradition and fear of symptom exacerbation, such as increased knee joint swelling, knee pain and slow recovery of knee joint range of motion, have typically precluded strength training early after TKA. Hypothesis: Our hypothesis is that the effect of early rehabilitation including strength training will be greater than rehabilitation without strength training. If the hypothesis is confirmed, strength training early after TKA could be implemented directly into clinical rehabilitation practice. Participants and methods: Seventy participants with a unilateral TKA, between the age of 18 to 80 years, who understand and speak Danish, have given informed consent, will be included in this study.The study is a single-blinded randomized controlled study, where the participants receive supervised 1) rehabilitation with or 2) rehabilitation without strength training in 7 weeks. All components of the rehabilitation program (balance-, and mobility training etc.) are the same in both groups except the strength training exercises. Instead of the strength training exercises, the group without strength training spend more time on warm-up exercises, mobility- and balance exercises. The rehabilitation program lasts 1 hour per session, and will be performed twice per week. The participants perform a test battery 4 times from before to 6 months after the TKA. The test battery assesses the participants' walking ability, leg strength, knee pain, knee joint swelling- and range of motion, and self-reported function and quality of life. Ethical issues: From a pilot study conducted in the beginning of 2010, the investigators found, that strength training initiated early after TKA seems feasible, and does not increase knee joint swelling and knee pain. None of the financial supporters, or any of the authors, have any potential conflicts of interest with regard to the study.

The purpose of this study is to compare the effects of neuromuscular exercise and analgesic use on knee joint load, in patients with mild to moderate knee osteoarthritis (OA). It is expected that the two groups will receive equipotent pain relieving effect, despite this, the investigators expect a between group difference in knee joint load, and the exercise group will have a reduction in knee joint load.

Osteoarthritis is a progressive disease afflicting to two thirds of Americans. Today, an estimated 43 million individuals have arthritis. By 2020, more than 59.4 million Americans will be affected by the disease. Despite the relative good track record of total knee replacement, it remains a biomedical device that can fail over time. A recent study looking at the current mechanisms of total knee replacement failures, listed polyethylene wear and osteolysis around implants. The material used for polyethylene insert as well as the conformity of articular surface of implants has been modified to decrease wear. While introducing modularity, the usage of metal backing in tibial base plates became obvious as it offered better stress distribution to the proximal tibial bone. However, it introduced other modes of failures. Micromotion has been demonstrated between the metal backing and the tibial liner, and produced backside polyethylene wear in 44% of implants at retrieval for revision. Factor influencing the surgeon's choice of implant include: reproductibility and longevity of results, technical difficulty of implantation, cost, and impact on bone stock. The modulus of elasticity of the tibial base plate has a direct effect on periprosthetic bone biology. Studies have described a significant decrease in postoperative Bone mineral density (BMD), adjacent to the implants, after total knee replacement. No study, to our knowledge, has looked at BMD in vivo after total knee replacement comparing different tibial base plate designs. Direct effect of changes in design on overall implant survival can be studied with randomized clinical trials isolating specific variables. No randomized clinical trial has looked at tibial insert stiffness and modularity, and it effect on bone density changes, synovitis, osteolysis or survivorship. In order to isolate stiffness and modularity as study variables, one would aim at randomizing an homogenous patient population undergoing total knee arthroplasty with implants of similar articular geometry designs with different tibial insert modularity and stiffness.

6-week Efficacy Study The objective of this study is to prove the safety and non-inferiority of analgesic efficacy of CG100649 2 mg vs. celecoxib 200 mg, and analgesic superiority of CG100649 2 mg vs. placebo, when administered once a day in patients with osteoarthritis of the hip or knee over the 6 week Treatment period. The primary efficacy parameter is the difference from Baseline to Week 6 in the Western Ontario and McMaster Universities Index of Osteoarthritis (WOMAC)-Pain subscale. Extended Safety Study The objective of the Extended Safety Study is to collect a total of 24 weeks of safety data for CG100649 including the initial 6 weeks of safety data, and an additional 18 weeks of safety data for those subjects who agree on the consent form to continue into the Extended Safety Study. Subjects will be administered CG100649 2 mg only during 18 weeks of Extended Safety Study.