Evaluation by Ultrasound Imaging of Local Anesthetic Spread to the Popliteal Fossa During an Adductor Canal Block

NCT06245460 | Terminated

• 2 other identifiers: APHP2317712023-A01774-41
• Study Type: observational
• Target: 30
• Locations: 1 country
• Sites: 1

Brief Summary

Adductor canal block is an effective analgesic technique for major knee surgery. However, the saphenous nerve block is not sufficient to explain this block's efficiency. It has been shown that adductor canal block can spread to the tibial and fibular nerves through the adductor hiatus. However this diffusion's frequency has never been measured. The main objective of this study is to assess the frequency of the spread of the adductor canal block to the fibular and tibial nerves assessed by ultrasound observation at the popliteal fossa.

Conditions

Knee Injuries

Keywords

knee surgery; ultrasound; analgesia; pain

Outcome Measures

Primary Outcomes (1)

• Frequency of local anesthetic's spread

  The primary outcome is the frequency of local anesthetic's spread to tibial and fibular nerve during an adductor canal block, assessed by ultrasound imaging at the popliteal fossa level. The ultrasound images will be recorded and then assessed by two independent anesthesiologists.

  at baseline

Secondary Outcomes (2)

• Frequency of altered sensibility

  at one and four hours

• Correlation between local anesthetic spread and clinical alteration

  at baseline, hour 1 and hour 4th

Eligibility Criteria

• Age: 18 Years+
• Sex: all
• Healthy Volunteers: No
• Age Groups: Adult (18-64), Older Adult (65+)
• Sampling Method: Non-Probability Sample

Study Population

The study population will be all the consecutive patients scheduled for elective knee surgery under general anesthesia in our center and receiving an adductor canal block.

You may qualify if:

• patients scheduled for elective knee surgery under general anesthesia
• in center of Ambroise Paré hospital
• receiving an adductor canal block

You may not qualify if:

• patients cognitively impaired
• patients suffering from peripheral neuropathy at the lower limb
• patients receiving an IPACK block or surgical knee infiltration to complete the adductor canal block analgesia
• patients who refused to take part in this study
• pregnant or breastfeeding patients
• patients under guardianship
• imprisoned patients
• patients without any medical insurance

Sponsors & Collaborators

• Assistance Publique - Hôpitaux de Paris: lead

Study Sites (1)

Department of anesthesia, Ambroise Paré Hospital - APHP

Boulogne-Billancourt, 92100, France

Location

MeSH Terms

Conditions

Knee Injuries; Agnosia; Pain

Condition Hierarchy (Ancestors)

Leg Injuries; Wounds and Injuries; Perceptual Disorders; Neurobehavioral Manifestations; Neurologic Manifestations; Nervous System Diseases; Signs and Symptoms; Pathological Conditions, Signs and Symptoms

Study Officials

• Romuald Henry, MD

  Department of anesthesia, Ambroise Paré Hospital - APHP

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: observational
• Observational Model: COHORT
• Time Perspective: PROSPECTIVE
• Sponsor Type: OTHER
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: January 30, 2024
• First Posted: February 7, 2024
• Study Start: March 5, 2024
• Primary Completion: April 8, 2025
• Study Completion: April 8, 2025
• Last Updated: November 24, 2025

Record last verified: 2025-11

Locations

FR (1)