Saphenous Nerve Block for Foot and Ankle Surgery

Launched by UNIVERSITY OF BRITISH COLUMBIA · Mar 2, 2015

Keywords

ClinConnect Summary

Purpose / Hypothesis This clinical study is a prospective, controlled, randomized, single-blinded trial designed to investigate the hypothesis that ultrasound-guided blockade of the saphenous nerve in conjunction with nerve stimulation has a higher success rate when compared to ultrasound alone. These research interventions represent what is considered to be an improvement on the standard practice at St. Paul's, which is to block the saphenous nerve with one of any number of saphenous nerve blocks, using a number of different techniques (i.e. ultrasound-guided, nerve stimulation, blind fiel...

Gender

ALL

Eligibility criteria

• Inclusion Criteria:
• • 1. Subjects undergoing foot and ankle surgery
• • 2. Aged 19-80
• • 3. Normal sensation in saphenous nerve distribution in both legs
• • 4. Provided written informed consent.
• • 5. Body Mass Index \<38 kg/m2
• Exclusion Criteria:
• • 1. Subject refusal
• • 2. A known history of allergy, sensitivity or any other form of reaction to local anesthetics of amide type
• • 3. Suspected inability to comply with study procedures, including language difficulties or medical history and/or concomitant disease (i.e. skin infection as the site of needle insertion), as judged by the investigator. Reason for exclusion will be recorded.
• • 4. A neurological and/or vascular condition, which may preclude eligibility for peripheral nerve blockade (i.e. peripheral neuropathy) as judged by the investigator. Reason for exclusion will be recorded.
• • 5. Subjects on therapeutic anticoagulation or coagulopathy at the time of nerve blockade.
• • 6. Previous inclusion in this study.
• • 7. Participation in other clinical studies during this study or in the 14 days prior to admission to this study.
• • 8. Surgeon refusal (e.g. the surgeon does not want a nerve block for the subject). Reason for exclusion will be recorded.