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

Cui Xulei

Status: Completed

Conditions: Nerve Block; Analgesia; Total Knee Arthroplasty

Treatments: Procedure: ultrasound guided long axis placement of adductor canal catheter; Drug: rescue sulfentanil given postoperatively as PICA; Drug: Ropivocaine; Procedure: ultrasound guided short axis placement of adductor canal catheter; Device: PAJUNK Contiplex S Catheter; Device: Philip CX 50 Ultrasound Scanner

Study type: Interventional

Funder types: Other; NETWORK

Identifiers

NCT02799797

cuixulei1

Details and patient eligibility

About

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.

Enrollment: 62 patients

Sex: All

Ages: 18 to 80 years old

Volunteers: No Healthy Volunteers

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

Trial design

Primary purpose: Supportive Care

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Triple Blind

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62 participants in 2 patient groups

short axis (SAX) placement of adductor canal catheters

Active Comparator group

Description:

Procedure: Ultrasound guided short axis (SAX) placement of adductor canal catheters Philip CX50 ultrasound scanner guided insertion of a PAJUNK Contiplex S catheter along the short axis of the middle part of adductor canal

Treatment:

Drug: rescue sulfentanil given postoperatively as PICA

Drug: Ropivocaine

Procedure: ultrasound guided short axis placement of adductor canal catheter

Device: PAJUNK Contiplex S Catheter

Device: Philip CX 50 Ultrasound Scanner

long axis (LAX) placement of adductor canal catheters

Experimental group

Description:

Procedure: Ultrasound guided long axis (LAX) placement of adductor canal catheters Philip CX50 ultrasound scanner guided insertion of a catheter along the long axis of the middle part of adductor canal

Treatment:

Drug: rescue sulfentanil given postoperatively as PICA

Drug: Ropivocaine

Device: PAJUNK Contiplex S Catheter

Device: Philip CX 50 Ultrasound Scanner

Procedure: ultrasound guided long axis placement of adductor canal catheter