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Popliteal Approach to Sciatic Nerve Block Is Not Inferior to Infragluteal Approach

NCT03410888 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 16

Last updated 2018-01-25

No results posted yet for this study

Summary

Study Hypothesis The investigators approach to demonstrate noninferiority of analgesia provided by popliteal block in TKA surgery will be based on a hypothesis of absence of a clinically significant difference in pain visual analogue sores (VAS) between the analgesia provided by the popliteal block and that of the infragluteal sciatic block in TKA surgery patients.

Conditions

  • Neuromuscular Blockade

Interventions

PROCEDURE

Popliteal approach

Popliteal approach: Under ultrasound guidance a 50 to 90 mm 22 G needle is inserted in and advanced to contact the target nerve until nerve movement is detected. The end point of nerve block in this group is obtaining a circumferential local anesthetic spread around the sciatic nerve.

PROCEDURE

Infragluteal approach

Infragluteal approach: The patients in this group will receive sciatic bock according to the approach described by Chan et al. Ultrasound scanning will be used to identify and mark the greater trochanter laterally and the ischial tuberosity medially. The sciatic nerve is usually found anterior (deep) to the gluteus maximus muscle and lateral to the origin of the biceps femoris muscle at the ischial tuberosity as well as medial to the greater trochanter. The end point of nerve block in this group is obtaining a circumferential local anesthetic spread around the sciatic nerve.

Sponsors & Collaborators

  • University Health Network, Toronto

    lead OTHER

Principal Investigators

  • Richard Brull, MD · University of Toronto

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
TRIPLE
Model
FACTORIAL

Eligibility

Min Age
18 Years
Max Age
85 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2011-08-31
Primary Completion
2012-01-31
Completion
2012-01-31

Countries

  • Canada

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT03410888 on ClinicalTrials.gov