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| NCT Id | NCT04107649 |
|---|---|
| Title | Knee Arthroplasty Activity Trial |
| Condition | Knee Osteoarthritis |
| StudyType | Interventional |
| Organization | Brigham and Women's Hospital |
| Sponsor/Collaborators | Brigham and Women's Hospital |
| Status | Not yet recruiting |
| Gender | All |
| AgeGroup | Adult Older Adult |
| Location (with distance) |
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| Description | Total knee replacement (TKR) is a common and costly procedure widely used to relieve pain and improve function in patients with symptomatic advanced knee osteoarthritis (OA). As of 2013, the annual incidence of TKR was over 680,000 surgeries and annual costs exceeded $11 billion. Growing evidence suggests that while pain and functional status improve following TKR, physical activity (PA) typically does not surpass pre-TKR levels. Engagement in PA can meaningfully improve quality of life (QoL), pain, and function. Given the large investment in TKR, the effectiveness and cost-effectiveness of TKR could be substantially increased if TKR recipients became more physically active. The Knee Arthroplasty Activity Trial (KArAT) is a randomized control trial and participants will be randomly assigned to one of three arms. Participants across all arms will receive usual post-operative care for TKR surgery. Participants in the first arm will complete basic study activities, such as responding to surveys and attending two in-person clinic visits. Participants in the second arm will receive a wrist-based physical activity tracker intervention and receive phone calls from study staff about improving their general well being. Participants in the third arm will receive a telephonic active coaching (motivational interviewing) and financial incentives (TAC(MI)+FI) based intervention, as well as a wrist-based physical activity tracker intervention. The second and third arms will receive financial rewards for wearing a wrist-worn activity tracker for twelve months during the study. |
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