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Completed

NCT Number: NCT02701114

Proximal Versus Distal Adductor Canal Blocks for Total Knee Arthroplasty

This study is designed to evaluate pain control of continuous adductor canal blocks placed proximally versus distally within the canal. The investigators hypothesize that there will be similar pain control between both groups.

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Key information

Conditions

Post-operative Pain Neurologic Manifestations Pain Pain, Postoperative Pathologic Processes Pathological Conditions, Signs and Symptoms Postoperative Complications Signs and Symptoms

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Virginia Mason Medical Center

Seattle, Washington, 98101, United States

About this study

This study is a non-inferiority trial designed to determine whether placement of a continuous block within the adductor canal has a substantial impact on pain following total knee arthroplasty. Our primary outcome to determine this difference will be opioid consumption within the first day following surgery. Secondary outcomes will include: pain scores, quadriceps strength, and distance ambulated during physical therapy.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Unilateral Total Knee Arthroplasty
  • ASA physical status I-III
  • >18 years old
  • Non-pregnant
  • Consent to participate in the study

Exclusion criteria

  • Refusal to participate
  • <18 years old
  • Chronic opioid use
  • Localized infection Pregnancy Pre-existing coagulopathy Allergy to ultrasound gel or local anesthetics Contraindication to or refusal of spinal anesthetic

Treatment and study plan

Proximal Adductor Canal Block

Procedure

Continuous Nerve Block

Distal Adductor Canal Block

Procedure

Continuous Nerve Block

Primary outcomes

  1. Opioid Consumption (IV Morphine Equivalents)

    Time frame: 24 Hours

    Total opioid consumption

Secondary outcomes

  1. Opioid Consumption (IV Morphine Equivalents)

    Time frame: 48 Hours

    Total opioid consumption

  2. Pain (Numeric Rating)

    Time frame: 48 Hours

    NRS Pain Scale

  3. Quadriceps Strength (% of Baseline)

    Time frame: 48 Hours

    Maximum Isometric Voluntary Contraction

  4. Distance Ambulated (Feet)

    Time frame: 48 Hours

    Total distance ambulated during physical therapy

Sponsors and collaborators

Lead sponsor

Benaroya Research Institute

Other

Registry information

Official study title

A Comparison of Proximal Versus Distal Continuous Adductor Canal Blocks After Total Knee Arthroplasty

Important dates

Study start
2016
Primary completion
2016
Study completion
2016
First posted
Mar 8, 2016
Registry last updated
Jul 13, 2017

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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