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CompletedNCT01655277Updated Aug 1, 2012

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

A Phase 4 interventional study of Ultrasound Guided Adductor Canal Block and Ultrasound Guided Femoral Nerve Block in Quadriceps Muscle Weakness, Adductor Muscle Weakness and Fall Risk, sponsored by St. Luke's-Roosevelt Hospital Center. Completed at 1 site in United States. Open to participants aged 18 Years to 65 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2012-08-01.

Sponsored by St. Luke's-Roosevelt Hospital Center · Phase 4, Interventional, and Treatment

Phase
Phase 4
Study type
Interventional
Enrollment
16
Allocation
Randomized
Ages
18 Years to 65 Years
Sex
All
01

Study summary

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.

02

Conditions studied

  • Quadriceps Muscle Weakness
  • Adductor Muscle Weakness
  • Fall Risk
03

In context

Muscle Weakness

601 studies on the registry are indexed under Muscle Weakness; 99 are open to participants now.

This study's enrollment of 16 is below the median of 46 across 444 interventional studies indexed under Muscle Weakness.

Browse Muscle Weakness studies →

Lead sponsor

St. Luke's-Roosevelt Hospital Center is the lead sponsor of 68 studies on the registry; none are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 65 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

  • Adults (>18yrs)
  • ASA 1-2

Exclusion criteria

Exclusion Criteria:

  • BMI >30
  • Allergy to local anesthetics
  • Pre-existing gait disturbance
  • Pre-existing neuropathy
05

Study design

Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Triple (Participant, Investigator, Outcomes assessor)
Enrollment
16 participants (actual)

Study arms

  • 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

Interventions

  • ProcedureUltrasound Guided Adductor Canal Block
  • ProcedureUltrasound Guided Femoral Nerve Block
06

What researchers measure

Primary outcomes

  1. 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

Secondary outcomes

  1. 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

  2. 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

  3. 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

  4. Assessment of fall risk with the Berg Balance Scale (BBS) at 30 minutes after the first nerve block.

    Time frame: At 30 minutes

07

Study locations

1 site
  • St. Luke's Roosevelt Hospital
    New York, New York 10025, United States
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Aug 1, 2012, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT01655277
Lead sponsor
St. Luke's-Roosevelt Hospital Center
Responsible party
Jeff Gadsden (Director of Regional Anesthesia, St. Luke's-Roosevelt Hospital Center) — Principal investigator
First posted
Aug 1, 2012
Start date
Feb 2012
Primary completion
Jun 2012
Completion
Jun 2012
Last update
Aug 1, 2012
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Jul 2012. You cannot join it, but the record below documents what was studied.

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