Optimizing Local Anesthetic Concentration for Continuous Lumbar Plexus Nerve Blocks

• Status: Completed
• Trial end date: 2009-06-01
• Target enrollment: 0
• Participant gender: All

Summary

This is a research study to determine if the concentration of local anesthetic through a catheter next to the nerves that go to the hip that is undergoing surgery, affects muscle strength and sense of touch experienced after surgery. This study is looking at the varying concentrations of local anesthetic placed through the catheter.

• Phase: Phase 4
• Accepts Healthy Volunteers?: No

Details

• Lead Sponsor: University of California, San Diego
• Treatments: Anesthetics; Anesthetics, Local; Ropivacaine

Criteria

Inclusion Criteria:

• Primary, unilateral hip arthroplasty

• age greater than or equal to 18 years

• postoperative analgesic plan includes perineural local anesthetic infusion

Exclusion Criteria:

• morbid obesity as defined by a body mass index greater than 40

• chronic high dose opioid use

• history of opioid abuse

• neuro-muscular deficit of the ipsilateral femoral nerve and/or quadriceps muscle

• vulnerable populations i.e., children, pregnant women, or prisoners