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Osteoarthritis is a progressive rheumatic disease which is the most common cause of musculoskeletal pain and functional impairment, particularly in the elderly group. The most common form is knee osteoarthritis. Pharmacological, non-pharmacological and if required surgical treatment may be applied in the osteoarthritis treatment. Non-pharmacological treatment includes patient education, joint protective measures, exercise, psychological support, diet, weight loss, physical therapy modalities, use of assistive device, hydrotherapy and balneotherapy. Ultrasound therapy is one of the most commonly used physical modalities in osteoarthritis treatment. İt has a deep heating effect and increases tissue regeneration, blood flow and metabolic effects while reducing the inflammation and relaxing the muscles. İn addition, it increases the cartilage regeneration according to certain in vivo and in vitro studies.
Decelerating the cartilage loss and decreasing the high volume of synovial fluid in early-stage knee osteoarthritis is important to preventing progression of the disease. Although there are some randomised controlled clinical trials that prove the effect of ultrasound treatment on pain and functionality in the knee osteoarthritis, there is no study that proves the effect of ultrasound treatment on cartilage thickness and synovial fluid amount. The aim of this study is evaluating the effect of pulsed ultrasound treatment on cartilage regeneration, inflammation and quality of life in the volunteers diagnosed knee osteoarthritis. This study is unique because it is the first study that evaluates the effect of therapeutic pulsed ultrasound on synovial fluid and cartilage thickness with ultrasonography.
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The study is a randomised, controlled and parallel group study. 96 patients will be included to study who apply to Dokuz Eylül University Faculty of Medicine, Department of Physical Medicine and Rehabilitation Clinic with the complaint of knee pain, aged between 45-75 years. Patients also have diagnosed as knee osteoarthritis according to American College of Rheumatology (ACR) diagnostic criteria and Kellgren-Lawrence grades are ≤3. These patients will be divided into two groups randomly (Treatment group n:48, control group n:48). The patients in the treatment group will receive treatment with 1 MHz probe with the intensity of 1w/cm2, pulsed at a ratio of 1:4 for 10 minutes and at an interval of 3 sessions per week for 8 weeks, a total of 24 sessions. On the other hand, sham US will be applied to control group for the same times and periods as the treatment group. A home exercise program will be given to both of two groups which contain knee range of motion and isometric strengthening exercises. The patients will be allowed to take paracetamol only when they complain of pain. All patients will be evaluated for 3 times, before and after treatment and 3 months after the treatment with ultrasonographic measurements and life quality tests. Primary aim of this study is to evaluate the effect of pulsed ultrasound on amount of synovial fluid and cartilage thickness.
For this purpose, cartilage thickness and reduction in the amount of synovial fluid will be measured via ultrasound.
Secondary aim is evaluating the effect of pulsed ultrasound on quality of life. Knee pain will be measured by VAS (Visual analogue scale) and functionality will be measured by WOMAC survey and Timed Up and Go Test.
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96 participants in 2 patient groups, including a placebo group
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Data sourced from clinicaltrials.gov
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