Loaded and Unloaded Magnetic Resonance (MR) Imaging of Meniscus-Cartilage-Trabecular Bone in Osteoarthritis
研究概览
详细说明
Variables of gait mechanics during walking have been linked to the onset and progression of knee osteoarthritis (OA). The knee adduction moment is one key variable that has been identified as an important indicator of medial compartment loads across the knee joint. Use of gait-retraining strategies to alter gait movement patterns and lower the knee adduction movement in persons with knee OA is a new and promising direction for the potential intervention in a population in which few strategies have worked successfully.
Factors that affect cartilage composition are crucial to understanding the disease mechanisms in knee OA. A multi-scale approach towards understanding the knee OA disease process by evaluating tissue compositional changes, joint contact mechanics, whole-body neuromuscular dynamics, and functional performance. The results will be the first to show the association between cartilage composition and daily function (performance and patterns) which are implicated in OA development and progression. With the addition of comprehensive muscle testing (cross sectional area/volume assessment using MR, strength testing, muscle activation and co-contraction patterns during daily activities), it will be possible to study the interaction between all major tissues around the knee.
研究类型
注册 (实际的)
阶段
- 不适用
联系人和位置
学习地点
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California
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San Francisco、California、美国、94107
- China Basin Imaging Center
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参与标准
资格标准
适合学习的年龄
接受健康志愿者
有资格学习的性别
描述
Inclusion Criteria:
- Men and women
- At least 35 years of age
- Mild OA patients with arthritic knee symptoms and KL score of 1-2
- Severe OA patients with arthritic knee symptoms and KL score of 3-4
- Knee symptoms in OA patients is defined as pain, aching, or stiffness on most days of a month during the past year or use of medication for treatment of knee pain on most days of a month during the past year
- self reported knee pain (defined as medial compartment knee pain at least 1 day per week during each of the 6 weeks prior to participation) and at least 3 of the following 6 clinical indicators: Age>50 years; morning stiffness<30 minutes duration; crepitus on active motion; tenderness of the bony margins of the knee joint; bony enlargement at the knee; and lack of palpable warmth of the synovium
Exclusion Criteria:
- current use of investigational drug
- conditions other than OA which limit lower extremity function and mobility and/or would confound the evaluation of function (e.g., clinically significant spinal disc degeneration, painful or dysfunctional feet, peripheral vascular disease, lumbar radiculopathy, trochanteric bursitis, hip pain, lumbar pain)
- Patients with metallic fragments in the eyes, vascular clips, pacemakers, and other contraindications to MRI
- History of joint replacement, intra-articular fracture, osteotomy, arthroplasty or meniscectomy of the signal knee
- History of other disease that may involve the study joint including systemic inflammatory disease, crystalline disease, knee infection of the signal knee, avascular necrosis, Paget's disease or tumors
- Self reported heart condition that limits any daily physical activity
- Patients who are pregnant
学习计划
研究是如何设计的？
设计细节
- 主要用途：预防
- 分配：随机化
- 介入模型：并行分配
- 屏蔽：单身的
武器和干预
参与者组/臂 |
干预/治疗 |
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有源比较器：Moderate gait retraining
a moderate 7 degree toe-in modification
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有源比较器：Mild gait retraining
A 2 degree toe-in gait retraining
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研究衡量的是什么？
主要结果指标
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
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Effects of moderate versus mild gait retraining on pain, function,and kinematics and kinetics during gait and stair climing in persons with symptomatic knee OA
大体时间：up to 6 months
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Everybody walks a little different. Some people walk with their toes pointed outwards (duck-footed) and other with their toes pointed straight or even inward(pigeon-toed). We will work with participants to teach you how to walk with slightly different toe angle. Participants will be randomly assign to each group and will be taught on this new walking pattern. Gait modification is a non-surgical treatment that can reduce the KAM (knee adduction moment). Changes to foot progression angle, tibia angle, hip adduction/internal rotation and trunk sway can reduce the KAM from baseline. Modifications involving simultaneous changes to multiple gait parameters have also been shown to reduce KAM. |
up to 6 months
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合作者和调查者
调查人员
- 首席研究员：Sharmila Majumdar, PhD、UCSF, Department of Radiology and Biomedical Imaging
研究记录日期
研究主要日期
学习开始
初级完成 (实际的)
研究完成 (实际的)
研究注册日期
首次提交
首先提交符合 QC 标准的
首次发布 (估计)
研究记录更新
最后更新发布 (实际的)
上次提交的符合 QC 标准的更新
最后验证
更多信息
此信息直接从 clinicaltrials.gov 网站检索，没有任何更改。如果您有任何更改、删除或更新研究详细信息的请求，请联系 register@clinicaltrials.gov. clinicaltrials.gov 上实施更改，我们的网站上也会自动更新.
膝骨性关节炎的临床试验
Gait Retraining的临床试验
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Medical University of South CarolinaMUSC Center for Biomedical Research Excellence (COBRE) in Stroke Recovery完全的
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Rennes University HospitalÉcole Normale Supérieure de Cachan完全的