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

Cui Xulei62 enrolled

Overview

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.

Study Type

INTERVENTIONAL

Allocation

RANDOMIZED

Purpose

SUPPORTIVE_CARE

Masking

TRIPLE

Enrollment

Conditions

Total Knee Arthroplasty Analgesia Nerve Block

Interventions

ultrasound guided long axis placement of adductor canal catheterPROCEDURE

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 catheterPROCEDURE

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 ScannerDEVICE

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

Eligibility

Sex: ALLMin age: 18 YearsMax age: 80 Years

Medical Language ↔ Plain English

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

Locations (1)

Xulei CUI

Beijing, Beijing Municipality, China

Outcomes

Primary Outcomes

the strength of quadriceps femoris

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

Time frame: within 48hours after surgery

Secondary Outcomes

postoperative nausea and vomiting score

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

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

ambulation time

SAX-group vs. LAX-group

Time frame: within the 7 days after surgery

quality of recovery

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

Time frame: 3days and 7days after surgery

complications

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

Time frame: within the 7 days after surgery

the strength of quadriceps femoris

SAX-group vs. LAX-group

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

Pain-score (VAS), patient at rest

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

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

Pain-score (VAS), motion pain

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

Data from ClinicalTrials.gov

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