Summary: In the current prospective, randomized study, two different materials of the same total knee arthroplasty (TKA) system - cobalt-chromium (CoCr) and titanium-nitride (TiN) - are going to be compared with regards to postoperative outcome. Two-hundred patients are planned to be included in the study over a 4-year period, randomly assigned to either the CoCr- or TiN-implant-group. In order to ensure d...

Summary: The pain experience and its associated mechanisms in people with knee osteoarthritis (OA) are known to be complex and multidimensional. The current understanding of OA pain mechanisms is incomplete, resulting in limited pain management strategies. There is high-quality evidence that suggests the use of exercise for people with knee OA can provide a reduction in pain, changes in quality of life, an...

Summary: The purpose of this research is to learn more about treating Symptomatic Knee Osteoarthritis (OA) with an ultrasound-guided hypertonic dextrose injection. Researchers would like to determine best practice for injection frequency and effectiveness of the dextrose injection for symptomatic knee OA.

Summary: The purpose of this study is to assess the efficacy of a behavioral intervention, Moving Well, in improving levels of anxiety and depression for patients undergoing total knee arthroplasty (TKA).

Summary: Shoulder arthroplasty provides successful improvement in pain and function for the treatment of end stage osteoarthritis (OA) of the shoulder in the older patient population (Sanchez 2008, Sampson 2010, Kon 2012, Fitzpatrick 2017). However, the optimal non-operative treatment for shoulder OA in the young active duty and civilian populations has yet to be determined. Although corticosteroid injecti...

Summary: This clinical trial studies the use of 7-Tesla (7T)and 3T magnetic resonance imaging (MRI) in detecting osteoarthrosis. 7T MRI has increased detection sensitivity, including more accurate lesion delineation, higher inter-rater agreement. Diagnostic procedures such as 7T MRI may help ultimately improved diagnostic and therapies confidence to inform decision making than standard 3T MRI.

Summary: Currently the diagnosis of OA is based on radiographs and clinical findings, which is limited to detecting late-stage disease. There is a pressing, unmet clinical need for robust assessment of early changes in cartilage health. Towards this goal, extensive efforts are ongoing to develop quantitative MRI for cartilage matrix analysis. MR T1ρ and T2 relaxation times have shown to be promising imagin...

Summary: This study aims to compare the femoral external rotation measured on CT and MRI to that measured intraoperatively to clarify the influence of residual cartilage on posterior condyle on the preoperative planning of total knee arthroplasty.

Summary: In Hong Kong, joint diseases are common health problems as identified by the Elderly Health Service under the Department of Health. It accounts for most of the disability of the elderly in Hong Kong. In particular, osteoarthritis (OA) is on the rise and the prevalence of OA increases with age. Women are more likely to have OA in knee and hip joints after menopause. A study in 2000 reported that am...

Summary: The biological study involves the collection of samples from male and female patients (intraoperative waste tissue, blood and synovial fluid), suffering from mild and moderate-severe OA, who undergo endo or arthro-prosthesis surgery, or arthroplasty, for the identification and characterization of a panel of gender-specific miRNAs. MicroRNAs will be extracted from the samples (chondrocytes, synovio...

Summary: Age-related hip and knee osteoarthritis is the leading cause of pain and locomotor problems worldwide. There is no definitive solution in the treatment of hip and knee osteoarthritis. In the guidelines of the American Rheumatology Association, pharmacological and non-pharmacological treatment methods are recommended for the treatment of hip and knee osteoarthritis. The effectiveness of different e...

Summary: Knee osteoarthritis (KOA) is one of the most common and disabling conditions among Veterans. Management of KOA is challenging as there are few effective treatments other than joint replacement. Importantly, low levels of physical activity in patients with knee problems might worsen pain and disability. This study aims to determine the feasibility of using methods to change behavior that use social...