Ultrasound Guided Adductor Canal Block Versus Femoral Nerve Block for Quadriceps Strength and Fall-risk

July 30, 2012 updated by: Jeff Gadsden, St. Luke's-Roosevelt Hospital Center

The Effects of Ultrasound Guided Adductor Canal Block Versus Femoral Nerve Block on Quadriceps Strength and Fall-risk: a Blinded Randomized Trial of Volunteers

Our objective was to determine if an ultrasound guided ACB can preserve quadriceps strength, thus minimizing weakness of knee extension compared with ultrasound guided femoral nerve block. Our primary outcome was the percent of maximum voluntary isometric contraction (MVIC) of knee extension preserved at 30 mins after either an ACB or FNB. Secondary outcomes included MVIC of knee extension at 60 min, hip adduction at 30 and 60 mins, and assessment of fall risk with the Berg Balance Scale (BBS) at 30 minutes.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

16

Phase

  • Phase 4

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • New York
      • New York, New York, United States, 10025
        • St. Luke's Roosevelt Hospital

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 65 years (Adult, Older Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Adults (>18yrs)
  • ASA 1-2

Exclusion Criteria:

  • BMI >30
  • Allergy to local anesthetics
  • Pre-existing gait disturbance
  • Pre-existing neuropathy

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Triple

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Adductor Canal block first
This arm received an ultrasound guided adductor canal block with 15mL of chloroprocaine 3% followed by motor, sensory and balance assessments. Then the patients received an ultrasound guided femoral nerve block with 15mL of chloroprocaine 3% followed by sensory and motor assessments.
Procedure: Ultrasound Guided Adductor Canal Block
Procedure: Ultrasound Guided Femoral Nerve Block
Experimental: Femoral nerve block first
This arm received an ultrasound guided femoral nerve block with 15mL of chloroprocaine 3% followed by motor, sensory and balance assessments. Then the patients received an ultrasound guided adductor canal block with 15mL of chloroprocaine 3% followed by sensory and motor assessments.
Procedure: Ultrasound Guided Adductor Canal Block
Procedure: Ultrasound Guided Femoral Nerve Block

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Percent of maximum voluntary isometric contraction (MVIC) of knee extension preserved at 30 mins after either an ACB or FNB
Time Frame: At 30 minutes
At 30 minutes

Secondary Outcome Measures

Outcome Measure
Time Frame
Percent of maximum voluntary isometric contraction (MVIC) of knee extension preserved at 60 mins after either an ACB or FNB
Time Frame: At 60 minutes
At 60 minutes
Percent of maximum voluntary isometric contraction (MVIC) of hip adduction preserved at 30 mins after either an ACB or FNB
Time Frame: At 30 minutes
At 30 minutes
Percent of maximum voluntary isometric contraction (MVIC) of hip adduction preserved at 60 mins after either an ACB or FNB
Time Frame: At 60 minutes
At 60 minutes
Assessment of fall risk with the Berg Balance Scale (BBS) at 30 minutes after the first nerve block.
Time Frame: At 30 minutes
At 30 minutes

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

St. Luke's-Roosevelt Hospital Center

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

February 1, 2012

Primary Completion (Actual)

June 1, 2012

Study Completion (Actual)

June 1, 2012

Study Registration Dates

First Submitted

July 30, 2012

First Submitted That Met QC Criteria

July 30, 2012

First Posted (Estimate)

August 1, 2012

Study Record Updates

Last Update Posted (Estimate)

August 1, 2012

Last Update Submitted That Met QC Criteria

July 30, 2012

Last Verified

July 1, 2012

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 11-202

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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