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Completed

NCT Number: NCT02799797

Ultrasound-guided Continuous Adductor Canal Block for Analgesia After Total Knee Replacement: Comparison of Short-axis and Long-axis Techniques

This study compares the long-axis and short-axis technique of continues adductor canal block for total knee replacement surgery. Half participants will receive long-axis catheterization, while the other half will receive short-axis catheterization.

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Key information

Conditions

Total Knee Arthroplasty Agnosia Analgesia Nerve Block Nervous System Diseases Neurobehavioral Manifestations Neurologic Manifestations Pathological Conditions, Signs and Symptoms Perceptual Disorders Signs and Symptoms

Age range

18 year–80 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Xulei CUI

Beijing, Beijing Municipality, 100730, China

Who can participate

Healthy volunteers accepted: No

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

Inclusion criteria

  • 18-80 years
  • Knee-arthroscopy
  • Written consent
  • ASA I-III
  • BMI 19-35

Exclusion criteria

  • Unable to communicate with the investigators (e.g., a language barrier or a neuropsychiatric disorder).
  • coagulopathy or on anticoagulant medication
  • Allergic reactions toward drugs used in the trial
  • History of substance abuse
  • Infection at injection site
  • Can not be mobilised to 5 meters of walk pre-surgery

Treatment and study plan

ultrasound guided long axis placement of adductor canal catheter

Procedure

The long axis of the ultrasound probe is placed parallel to the long axis of the adductor canal while scanning, and the catheter is placed along the long axis of the canal using an in-plane approach

ultrasound guided short axis placement of adductor canal catheter

Procedure

The long axis of the ultrasound probe is placed vertical to the long axis of the adductor canal while scanning, and the catheter is placed along the short axis of the canal using an in-plane approach

Philip CX 50 Ultrasound Scanner

Device

The linear (C5-12) probe of Philip CX 50 Ultrasound Scanner is used for scanning

PAJUNK Contiplex S Catheter

Device

Ropivocaine

Drug

0.2% ropivacaine 10ml is given as loading dose. Following that, 0.2% ropivacaine 5ml/h is given as maintenance dose.

rescue sulfentanil given postoperatively as PICA

Drug

bolus: 2mg, lock time: 10min, 1h limitation: 8mg

Primary outcomes

  1. the strength of quadriceps femoris

    Time frame: within 48hours after surgery

    strength of quadriceps femoris measured on a Lovett muscle strength rating-scale within 48 hours after surgery

Secondary outcomes

  1. postoperative nausea and vomiting score

    Time frame: 0-2, 2-4, 4-8, 8-24, 24-48 hours postoperative

    Rating-scale 0-3 SAX-group vs. LAX-group

  2. ambulation time

    Time frame: within the 7 days after surgery

    SAX-group vs. LAX-group

  3. quality of recovery

    Time frame: 3days and 7days after surgery

    use the self-assessment 11item QoR scale to assess the patient's recovery quality,SAX-group vs. LAX-group

  4. complications

    Time frame: within the 7 days after surgery

    Record complications including catheter dislodgment, puncture point infection, leakage,falling down,et al.

  5. the strength of quadriceps femoris

    Time frame: 0,2,4,8,24,48 hours postoperative

    SAX-group vs. LAX-group

  6. Pain-score (VAS), patient at rest

    Time frame: 0,2,4,8,24,48 hours postoperative

    Pain-score measured on a Visual Analog Scale (VAS) .SAX-group vs. LAX-group

  7. Pain-score (VAS), motion pain

    Time frame: 0,2,4,8,24,48 hours postoperative

    Pain-score measured on a Visual Analog Scale (VAS) .SAX-group vs. LAX-group

  8. sulfentanil consumption

    Time frame: 0,2,4,8,24,48 hours postoperative

    record the amount（ml) of sulfentanil used

Sponsors and collaborators

Lead sponsor

Cui Xulei

Other

Collaborators

  • Medical Consulting Center

Registry information

Important dates

Study start
2016
Primary completion
2018
Study completion
2018
First posted
Jun 15, 2016
Registry last updated
Apr 16, 2019

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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