Perineural Catheter Insertion Distance for Continuous Peripheral Nerve Blocks

This is a research study to determine if the effects of continuous peripheral nerve blocks are influenced by the distance of insertion past the needle tip of the perineural catheter.

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Key information

Conditions

Lower Extremity Surgery Neurologic Manifestations Pain Pain, Postoperative Pathologic Processes Pathological Conditions, Signs and Symptoms Post-operative Pain Postoperative Complications Signs and Symptoms Upper Extremity Surgery

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 4

Primary location

UCSD Medical Center

San Diego, California, 92103, United States

About this study

Specific Aim: Research study to determine the relationships between perineural catheter insertion distance and subsequent continuous peripheral nerve block effects.

Hypothesis: during ultrasound-guided perineural catheter placement, inserting the catheter 0-1cm past the needle tip is associated with decreased postoperative pain compared with inserting the catheter 5-6cm past the needle tip.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

undergoing surgery with a planned popliteal perineural catheter for postoperative analgesia
age 18 years or older

Exclusion criteria

pregnancy
inability to communicate with the investigators and hospital staff
incarceration
clinical neuropathy in the surgical extremity
chronic high-dose opioid use
history of opioid abuse

Treatment and study plan

Sciatic catheter left 0-1cm past needle tip vs. 5-6cm past needle tip

Procedure

Patients undergoing orthopedic surgery who are getting a perineural catheter will be randomized to one of two groups: catheter tip placed 0-1cm past needle tip or catheter tip placed 5-6cm past needle tip. Patients will be called by research staff the day following surgery to assess their post-surgical pain using a numeric rating scale.

Primary outcomes

Average pain in the three hours previous to a phone call the day following surgery as measured on a numeric rating scale (0-10, 0=no pain, 10=worst imaginable pain).

Time frame: Day 1 after surgery, 3 hours prior to phone call

Sponsors and collaborators

Lead sponsor

University of California, San Diego

Other

Registry information

Important dates

Study start: 2009
Primary completion: 2010
Study completion: 2010
First posted: Oct 19, 2009
Registry last updated: Oct 28, 2010

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

Published trials that share one or more normalized conditions with this study.

Completed