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A Long Axis Approach to the Femoral Artery Block (FAB) for Managing Tourniquet Pain and Hypertension in Below-the-Knee Fracture Surgery

Study acronym: FAB
StatusRecruiting
PhaseNot applicable
Started
View on ClinicalTrials.gov ↗

Record History

  1. Recruitment opened Start date changed from estimate of May 2026 to Jun 3, 2026v3 Show 1 more changeShow less
    • Start date changed from estimate of May 2026 to Jun 3, 2026
  2. Study title revisedv2 See this version in full on ClinicalTrials.gov ↗
  3. Study First Submitted
  • Stopped: an ongoing trial was terminated, suspended or withdrawn.
  • Notable: the trial’s plan changed such as a big move in its timeline or size, a new primary endpoint, sponsor or phase, or recruiting opened or resumed.
  • Minor: routine progress and housekeeping, such as sites added or enrollment closed.
This is a prospective, randomized, double-blind controlled trial evaluating an ultrasound-guided femoral artery block (FAB) using a long-axis in-plane approach compared with a short-axis approach and a control group. The study will include adult patients (ASA I-III) undergoing below-the-knee fracture surgery with tourniquet application. All patients will receive standardized anesthesia including sciatic nerve block and total intravenous anesthesia. Participants will be randomized into three groups: short-axis FAB, long-axis FAB, or control (saline injection). The primary aim is to assess the effectiveness of the long-axis FAB in reducing tourniquet-induced hypertension. Secondary outcomes include hemodynamic stability, analgesic requirements, pain scores, block characteristics, and procedural performance metrics.
Trial Details
NCT Number NCT07548567
Lead Sponsor National and Kapodistrian University of Athens
Conditions Tourniquet Hypertension
Enrollment 84 participants
Start Date
Primary Completion (estimated)
Study Completion (estimated)
Updated on ClinicalTrials.gov