Three Different Approaches for Ultrasound Guided Femoral Nerve Block for Patients Undergoing Total Knee Arthroplasty

Chicago Anesthesia Pain Specialists

Status: Completed

Conditions: Knee Arthroplasty

Treatments: Procedure: Femoral nerve block stimulating catheter; Procedure: Femoral nerve block; Procedure: Femoral nerve block non stimulating catheter

Study type: Interventional

Funder types: Other

Identifiers

NCT01763814

Advocate-IRB-5235

Details and patient eligibility

About

Patients scheduled to have a surgery for Total Knee Arthroplasty will be assigned to one of three groups, each group will use a different approach using the ultrasound to guide the femoral nerve block as part of their treatment for controlling pain post-operatively.

Full description

This will be a prospective, single-blinded, randomized study. The patients will be randomly assigned to one of three groups:

Group I - single shot femoral nerve block Group II - continuous femoral nerve block - non stimulating catheter Group III - continuous femoral nerve block - stimulating catheter

Enrollment: 108 patients

Sex: All

Ages: 18 to 90 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• 18- 90 years old
• Scheduled for total knee arthroplasty

Exclusion criteria

• Redo surgery on the same knee
• BMI ≥45
• Radicular pain in the same leg
• Allergy to local anesthetics
• Opioid habituation
• Pregnancy
• Contraindication to regional block
• Inability to communicate with hospital staff or investigators.
• Neuropathy of any etiology in the surgical extremity.

Trial design

Primary purpose: Supportive Care

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Single Blind

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108 participants in 3 patient groups

Single shot femoral nerve block

Active Comparator group

Description:

A ultrasound probe will be used to identify the nerve, and correct needle placement.

Treatment:

Procedure: Femoral nerve block

Femoral nerve block non stimulating catheter

Active Comparator group

Description:

A ultrasound probe will be used to identify the nerve, and correct needle placement. The catheter will be placed with the nerve stimulator powered off.

Treatment:

Procedure: Femoral nerve block

Procedure: Femoral nerve block non stimulating catheter

Femoral nerve block stimulating catheter

Active Comparator group

Description:

A ultrasound probe will be used to identify the nerve, and correct needle placement. The catheter will be placed with the nerve stimulator powered on.

Treatment:

Procedure: Femoral nerve block

Procedure: Femoral nerve block stimulating catheter