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Completed

NCT Number: NCT06489210

A Comparison Between Posterior, Lateral and Medial Approaches for Ultrasound-guided Popliteal Block

Background: Popliteal block is a widely used technique to provide anesthesia or analgesia for below-knee surgical procedures. In this study, the investigators compare ultrasound-guided popliteal blocks via posterior, lateral, and medial approaches to find out the approach with the best outcome.

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Key information

Conditions

Nerve Pain Nervous System Diseases Neuralgia Neurologic Manifestations Neuromuscular Diseases Pain Pathological Conditions, Signs and Symptoms Peripheral Nervous System Diseases Signs and Symptoms

Age range

21 year–50 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Zagazig University Hospitals

Zagazig, Egypt

About this study

Methods: In this randomized, controlled clinical trial, one hundred and twenty ASA physical status of class I and II patients undergoing below-knee surgery were involved. These patients were divided into three equal groups at randomly based on the route assigned for the US-guided popliteal block: the posterior, lateral, and medial approach groups. In this study, technical characteristics [number of attempts to get the proper injection site and block performance time], anesthetic and analgesic characteristics [success rate, block onset, potency, and duration, time to ask, and the consumed amount of postoperative analgesia], discomfort rate in respect to position and needle insertion and the associated complications were recorded.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

This study included

  • ASA physical status (PS) class I and II
  • weighing 70-85 kg,
  • undergoing elective below knee surgeries

Exclusion criteria

  • patients who refused to participate in the study
  • those having an allergy to local anesthetics
  • peripheral neuropathy, coagulopathy
  • diabetes mellitus
  • severe hepatic
  • renal impairment
  • infection, mass and crush injury or open wound at the nerve block site
  • patients receiving chronic analgesic therapy.

Treatment and study plan

Popliteal block

Procedure

using ultrasound to detect sciatic nerve and popliteal fossa through different approaches using 20ml of the selected local anesthetic mixture (10ml of 0.5% bupivacaine mixed with 10ml of 2% lidocaine, each with 1:200,000 epinephrine) was injected incrementally

Primary outcomes

  1. assessment of intraoperative and postoperative pain in different groups after intervention

    Time frame: 24 hours after operation

    pain severity levels via visual analogue scale (VAS). VAS is a 10 cm horizontal line labeled "no pain" at one end and "worst pain" imaginable on the other end. The patient was asked to mark on this line where the intensity of the patient lies

Sponsors and collaborators

Lead sponsor

Helwan University

Other

Registry information

Official study title

A Comparison Between Posterior, Lateral and Medial Approaches for Ultrasound-guided Popliteal Block: A Randomized Clinical Study

Important dates

Study start
2018
Primary completion
2021
Study completion
2021
First posted
Jul 5, 2024
Registry last updated
Jul 5, 2024

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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