Thigh Reduction Surgery of Above Knee Amputee Residual Limbs to Improve Prosthesis Fit and Patient Outcomes
2020年3月19日 更新者：Todd Kuiken、Shirley Ryan AbilityLab
Thighplasty of Transfemoral Amputee Residual Limbs to Improve Prosthesis Fit and Patient Functional Outcomes
The purpose of our study is to improve the fit and function of prosthetic sockets for above the knee amputees through the use of an outpatient thigh reduction surgical procedure.
研究概览
详细说明
We will quantify the anatomical distribution of subcutaneous fat, muscle and bone in the residual limb of the transfemoral amputees with an MRI.
We will measure the displacement of the socket wall relative to the femur under mechanical loading with x-ray.
The functional mobility level of the subject with be quantified via standard clinical and bio mechanical tests.
Perform a standard medial thighplasty with our without thigh liposuction.
Characterize the post-surgical anatomy, compliance of the residual limb and function of the amputee subjects.
After six months, repeat the MRI and xray and compare results.
Subject will also complete a questionnaire regarding their views on the outcome of the surgery.
研究类型
介入性
注册 (实际的)
1
阶段
- 不适用
联系人和位置
本节提供了进行研究的人员的详细联系信息，以及有关进行该研究的地点的信息。
学习地点
-
-
Illinois
-
Chicago、Illinois、美国、60611
- Rehabilitation Institute of Chicago
-
-
参与标准
研究人员寻找符合特定描述的人，称为资格标准。这些标准的一些例子是一个人的一般健康状况或先前的治疗。
资格标准
适合学习的年龄
18年 及以上 (成人、年长者)
接受健康志愿者
不
有资格学习的性别
全部
描述
Inclusion Criteria:
- Obese transfemoral amputees with a BMI of at least 30.
- Mid to long residual limb, excessive adipose tissue in their residual limb
- Community ambulators
- Adults over the age of 18
Exclusion Criteria:
- Amputation due to vascular disease or diabetes
- Cognitive impairments that would interfere with the protocol or patient safety
- Systemic disease that is not stable or would significantly increase the risk of complications with surgery
- Chronic wounds
- People who do not ambulate on a daily basis
- Children under the age of 18.
学习计划
本节提供研究计划的详细信息，包括研究的设计方式和研究的衡量标准。
研究是如何设计的？
设计细节
- 主要用途：基础科学
- 分配：不适用
- 介入模型：单组作业
- 屏蔽：无（打开标签）
武器和干预
参与者组/臂 |
干预/治疗 |
|---|---|
|
实验性的：Surgical: Medial thighplasty
Perform a standard medial thighplasty with our without additional thigh liposuction on up to three obese transfemoral amputee subjects.
The surgery will consist of medial excision of excess adipose and cutaneous tissue with circumferential liposuction.
|
Perform a standard medial thighplasty with or without additional thigh liposuction on up to three obese transfemoral amputee subjects.
The subjects will be transfemoral amputees who are successful ambulators and have a body mass index (BMI) of 30 or greater with excessive adipose tissue in their residual limb.
The surgery will consist of medial excision of excess adipose and cutaneous tissue with circumferential liposuction.
|
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 |
|---|---|---|
|
Assess compliance of residual limb in the socket, which will improve the fit and comfort of the prosthesis.
大体时间：Pre surgery and 6 months post surgery
|
We will measure the compliance of their residual limb by the displacement of the socket wall relative to the femur under mechanical loading with X-ray.
The subjects will adjust their foot placement, limb loading and muscle contractions to achieve up to 8 specified force/torque levels (as measured by a 6 degree-of-freedom load cell located in series with their pylon and socket), which correspond to forces and torques that are typical of over ground walking and standing postures and are scaled for their body weight.
For each force/torque level, static X-ray scans of locations of the prosthetic socket wall and residual limb femur will be acquired.
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Pre surgery and 6 months post surgery
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次要结果测量
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
|
Assess walking endurance
大体时间：Pre surgery and 6 months post surgery
|
Complete 6 minute walk test over level ground as metabolic energy consumption and heart rate our monitored.
Subjects may wear a portable, commercially available metabolic measurement system so that their metabolic energy expenditure may be calculated after the experiment.
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Pre surgery and 6 months post surgery
|
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Assess balance stability
大体时间：Pre surgery and 6 months post surgery
|
Complete the 4 square step test as a clinical test of the ability to change directions while stepping.
|
Pre surgery and 6 months post surgery
|
合作者和调查者
在这里您可以找到参与这项研究的人员和组织。
研究记录日期
这些日期跟踪向 ClinicalTrials.gov 提交研究记录和摘要结果的进度。研究记录和报告的结果由国家医学图书馆 (NLM) 审查，以确保它们在发布到公共网站之前符合特定的质量控制标准。
研究主要日期
学习开始
2014年8月1日
初级完成 (实际的)
2019年8月1日
研究完成 (实际的)
2020年3月1日
研究注册日期
首次提交
2015年1月9日
首先提交符合 QC 标准的
2015年1月19日
首次发布 (估计)
2015年1月26日
研究记录更新
最后更新发布 (实际的)
2020年3月23日
上次提交的符合 QC 标准的更新
2020年3月19日
最后验证
2020年3月1日
更多信息
与本研究相关的术语
其他研究编号
- STU00090292
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.