Continuous Popliteal Nerve Blocks: Effect of Perineural Catheter Tip Location Relative to the Sciatic Nerve Bifurcation on Postoperative Analgesia

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE4

Total Enrollment

150 participants

Study Classification

INTERVENTIONAL

Study Start Date

2010-10-31

Study Completion Date

2015-06-30

Brief Summary

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Research study to determine the relationship between perineural catheter tip location relative to the sciatic nerve bifurcation and postoperative analgesia for continuous popliteal nerve blocks.

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Detailed Description

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Hypothesis: During a continuous popliteal nerve block, postoperative analgesia will be improved with the perineural catheter tip at the level of the sciatic nerve bifurcation compared to when the catheter tip is 5 cm cephalad/proximal to the bifurcation.

Conditions

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Popliteal Nerve Block Foot Surgery Ankle Surgery Popliteal Bifurcation

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

SINGLE

Participants

Study Groups

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At Bifurcation

Patients randomized to this group will receive a sciatic nerve block placed at the bifurcaton of the sciatic nerve and outcome measures will be tested.

Group Type ACTIVE_COMPARATOR

Catheter Placed At Bifurcation

Intervention Type PROCEDURE

Patients randomized to this group will receive a sciatic nerve block placed at the bifurcaton of the sciatic nerve and outcome measures will be tested.

5cm Above Bifurcation

Patients randomized to this group will receive a sciatic nerve block placed 5cm above the bifurcaton of the sciatic nerve and outcome measures will be tested.

Group Type ACTIVE_COMPARATOR

Catheter Placed 5cm Above Bifurcation

Intervention Type PROCEDURE

Patients randomized to this group will receive a sciatic nerve block placed 5cm above the bifurcaton of the sciatic nerve and outcome measures will be tested.

Interventions

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Catheter Placed At Bifurcation

Patients randomized to this group will receive a sciatic nerve block placed at the bifurcaton of the sciatic nerve and outcome measures will be tested.

Intervention Type PROCEDURE

Catheter Placed 5cm Above Bifurcation

Patients randomized to this group will receive a sciatic nerve block placed 5cm above the bifurcaton of the sciatic nerve and outcome measures will be tested.

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

* undergoing surgery with a 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
* a history of opioid abuse
* surgery outside of ipsilateral sciatic and saphenous nerve distributions

Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No