Pre-emptive Sciatic Bloc to Prevent Lower Limb Phantom Pain

Université de Sherbrooke17 enrolled

Overview

Phantom limb pain is a complication of amputation. Although pre-empitve epidural analgesia was once thought to prevent such a com plication, recent studies did not demonstrate this. Peripheral blocks are more powerful then epidurals, and can even influence somatotropic representation in the brain. This a prospective case series in which the investigators hope to show a decrease, against historical control, of the incidence of post-operative amputation lower limb phantom pain. The investigators established the block at least 24 hours pre-operative and continue it for at least 2 days. Patient are followed daily for the 1st 3 days and then up to 3 month for the incidence of phantom limb pain. The investigators hope to recruit 30 patients.

Study Type

INTERVENTIONAL

Allocation

Purpose

PREVENTION

Masking

NONE

Enrollment

Conditions

Phantom Limb Pain

Interventions

Sciatic nerve block, Labatt approach, with a stimuplex needle and catheter. Once localized, a bolus of 20 mL ropivacaine 1,0% is given through the catheter and is followed by a perfusion of ropivacaine 0,2% 6-10 mL/hre for at least 24 hours pre-op and 48 hours post-op

Eligibility

Sex: ALL

Medical Language ↔ Plain English

Inclusion Criteria: * Patient scheduled for lower limb amputation Exclusion Criteria: * Inability to consent * Contraindication to peripheral nerve block * Inability to perform the block * Inadequate time frame (less than 24 hours prior to surgery)

Locations (1)

CHU

Sherbrooke, Quebec, Canada

Outcomes

Primary Outcomes

incidence of lower limb phantom pain

Time frame: 3 month post amputation

Data from ClinicalTrials.gov

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