Femoral Versus Psoas Continuous Peripheral Nerve Blocks Following Hip Arthroplasty

University of California San Diego

Status and phase: Completed; Phase 4

Conditions: Hip Pain; Hip Arthroplasty

Treatments: Procedure: Femoral Nerve Block vs. Psoas Compartment Nerve Block

Study type: Interventional

Funder types: Other

Identifiers

NCT00967980

Femoral vs. Psoas PNB Cath Hip

Details and patient eligibility

About

The purpose of this research study is to determine if the insertion site of a perineural catheter, or tiny tube placed next to the nerves that go to the hip which you will have surgery, affects the amount of pain relief that is experienced after surgery.

Full description

To determine the association between perineural catheter location and postoperative analgesia, analgesic requirements, ambulatory distance, and flexion following hip arthroplasty.

Primary Hypothesis: Differing the catheter insertion site (femoral vs. psoas compartment) for a perineural local anesthetic infusion is not associated with lower pain scores during the 24-hour period beginning the morning following hip arthroplasty.

Enrollment: 50 estimated patients

Sex: All

Ages: 18+ years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• primary, unilateral hip arthroplasty or hip resurfacing
• age greater than or equal to 18 years
• postoperative analgesic plan includes perineural local anesthetic infusion

Exclusion criteria

• morbid obesity (BMI greater than 40)
• chronic, high-dose opioid use
• history of opioid abuse
• pregnancy
• incarceration
• amu meirp-muscular deficit of the ipsilateral femoral nerve and/or quadriceps muscle
• inability to communicate with hospital staff

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: None (Open label)

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50 participants in 2 patient groups

1. Femoral Nerve Block

Active Comparator group

Description:

Patients will be randomized with a computer program to receive a femoral catheter. The catheter will be placed using standard technique. The time of catheter placement will be recorded as well as the pain/discomfort of catheter placement as reported by the patient on a 0-10 scale where 0=no pain/discomfort and 10=worst imaginable pain/discomfort.

Treatment:

Procedure: Femoral Nerve Block vs. Psoas Compartment Nerve Block

2. Psoas Compartment Catheter

Active Comparator group

Description:

Patients will be randomized with a computer program to receive a psoas compartment catheter. The catheter will be placed using standard technique. The time of catheter placement will be recorded as well as the pain/discomfort of catheter placement as reported by the patient on a 0-10 scale where 0=no pain/discomfort and 10=worst imaginable pain/discomfort.

Treatment:

Procedure: Femoral Nerve Block vs. Psoas Compartment Nerve Block