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Effect of Adductor Canal Block vs. Placebo on Muscle Strength, Mobilisation and Pain After Total Knee Arthroplasty

2014年11月26日 更新者:Ulrik Grevstad

Effect of Adductor Canal Block vs. Placebo on Muscle Strength, Mobilisation and Pain on the First Post-operative Day After Total Knee Arthroplasty

The purpose of this study is to evaluate the effect of adductor canal block (ACB) vs. placebo on muscle strength, mobility and pain on the first postoperative day after total knee alloplastic (TKA).

研究概览

详细说明

Patients will be included on the first day after TKA surgery and randomized in two groups. Each group will receive 2 ACB with a 1 hour interval, one ACB with an active drug, Ropivacaine, and another ACB with a placebo drug, Saline.

At T0, arm ACB_active/placebo will receive the active ACB with Ropivacaine followed by the placebo ACB at T60 (60 minutes after T0).

At T0, arm ACB_placebo/active will receive the placebo ACB with Saline followed by the active ACB with Ropivacaine at T60 (60 minutes after T0).

Outcome measurements will be made at T60, 1 hour after the first ACB, and the difference in outcome between the groups will be compared.

Baseline values will be measured prior to the first ACB. Final measurements at T120 (120 minutes after the initial ACB), will determine if the differences between the groups are eliminated, since both groups then have received an active ACB.

研究类型

介入性

注册 (实际的)

64

阶段

  • 第四阶段

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

      • Hellerup、丹麦、2900
        • Gentofte Hospital

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 至 85年 (成人、年长者)

接受健康志愿者

有资格学习的性别

全部

描述

Inclusion Criteria:

  • Patients who have had a Total Knee Arthroplasty surgery within 2 days (1.postoperative day on inclusion)
  • Written informed consent.
  • ASA 1-3

Exclusion Criteria:

  • Non-cooperative patients
  • Patients who have already had a peripheral or central block post surgery.
  • Patients who are not able to perform a TUG test pre surgery.
  • Patients who do not understand or speak Danish.
  • Patient who are allergic to the drugs used in this research.
  • Patients with alcohol- or drug abuse - determined by investigator.
  • Patients with peripheral sensory neuropathy in their lower extremities.
  • Pregnant patients.

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:治疗
  • 分配:随机化
  • 介入模型:并行分配
  • 屏蔽:四人间

武器和干预

参与者组/臂
干预/治疗
有源比较器:ACB_active/placebo

Patients will receive the first ACB with a active drug, 30 ml bolus Ropivacaine 7,5 mg/ml at T0. First outcome measurement are made one hour after the first ACB, prior to their second ACB. At T60 (60 minutes after T0), patients will receive their second ACB with the placebo drug, 30 ml bolus Saline and outcome measures performed again at T120(120 minutes after T0).

The measurements for baseline and outcome will be made in following order:

VAS pain score at rest - VAS pain score during active flexion of the knee - Muscle strength - TUG test - Highest VAS pain score during TUG test

其他名称:
  • 产品名称:氯化钠“Fresenius Kabi”9 mg/ml
  • 钠 9 克/升
  • 电解质含量:Na+ 154 mmol/l
  • Cl- 154 毫摩尔/升
  • 输液合剂
其他名称:
  • Product name: Ropivacain "Fresenius Kabi"
  • Ropivacainhydrochloridmonohydrat
  • Importet to Denmark by Fresenius Kabi AB
  • Injection mixture
安慰剂比较:ACB_placebo/active

Patients will receive the first ACB with placebo, 30 ml isotonic saline at T0. First outcome measurement are made one hour after the first ACB, prior to their second ACB. At T60(60 minutes after T0), patients will receive their second ACB with the ropivacaine 7,5 mg/ml 30 ml and outcome measures performed again at T120(120 minutes after T0).

The measurements for baseline and outcome will be made in following order:

VAS pain score at rest - VAS pain score during active flexion of the knee - Muscle strength - TUG test - Highest VAS pain score during TUG test

其他名称:
  • 产品名称:氯化钠“Fresenius Kabi”9 mg/ml
  • 钠 9 克/升
  • 电解质含量:Na+ 154 mmol/l
  • Cl- 154 毫摩尔/升
  • 输液合剂
其他名称:
  • Product name: Ropivacain "Fresenius Kabi"
  • Ropivacainhydrochloridmonohydrat
  • Importet to Denmark by Fresenius Kabi AB
  • Injection mixture

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
Difference between groups in muscle strength of the quadriceps femoris muscle.
大体时间:60 minutes after first ACB (T60)
Muscle strength is assessed as maximum voluntary isometric contraction (MVIC) using a hand-held dynamometer.3 consecutive measurements will be made and the average used. Results for each group will be presented as percentage of baseline values. The primary outcome is the difference in MVIC between the groups.
60 minutes after first ACB (T60)

次要结果测量

结果测量
措施说明
大体时间
Difference between groups in muscle strength of the quadriceps femoris muscle.
大体时间:120 minutes after initial ACB (T120)
Same as primary outcome
120 minutes after initial ACB (T120)
VAS pain scores at rest
大体时间:60 minutes after the initial ACB (T60) and 120 minutes after initial ACB (T120)

Pain at rest (VAS 0-100 mm) one hour after the first and second ACB. Results will be compared between the two groups.

VAS pain scores at rest will be inquired before any other outcome measurements.

60 minutes after the initial ACB (T60) and 120 minutes after initial ACB (T120)
VAS pain score during TUG test.
大体时间:60 minutes after the initial ACB (T60) and 120 minutes after initial ACB (T120
Highest VAS (0-100 mm) pain score during TUG test will be inquired for each TUG test. Results will be compared between the two groups.
60 minutes after the initial ACB (T60) and 120 minutes after initial ACB (T120
Timed Up and Go(TUG) test
大体时间:60 minutes after the initial ACB (T60) and 120 minutes after initial ACB (T120
Time (seconds) to complete a TUG test measured one hour after the first and second ACB. Results will be compared between the two groups.
60 minutes after the initial ACB (T60) and 120 minutes after initial ACB (T120
VAS pain scores during 45 degrees active flexion of the knee
大体时间:60 minutes after the initial ACB (T60) and 120 minutes after initial ACB (T120
Specification of pain (VAS 0-100 mm) during 45 degrees active flexion of the knee one hour after first and second ACB. Results will be compared between the two groups.
60 minutes after the initial ACB (T60) and 120 minutes after initial ACB (T120
Sub-group analysis of muscle strength and mobility acconding to baseline VAS during active flexion of the knee prior to the first block
大体时间:60 minutes after first ACB (T60)
According to their specified VAS (0-100 mm) pain score during active flexion of the knee prior to the first block, patients will be divided into two groups. Group 1 VAS 0-59 mm and group 2 with VAS 60-100 mm. Results within the two groups will be compared: e.g is there a difference in MVIC in the subgroup of patients scoring VAS 0-59 during active knee flexion at baseline? and is this difference larger in the subgroup of patients scoring VAS 60-100?
60 minutes after first ACB (T60)

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。

调查人员

  • 首席研究员:Ulrik Grevstad, MD、Gentofte Hospital

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)

2014年11月1日

研究完成 (实际的)

2014年11月1日

研究注册日期

首次提交

2014年9月12日

首先提交符合 QC 标准的

2014年9月15日

首次发布 (估计)

2014年9月17日

研究记录更新

最后更新发布 (估计)

2014年12月2日

上次提交的符合 QC 标准的更新

2014年11月26日

最后验证

2014年11月1日

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.

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