- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT06185608
The Effects of Various Concentrations of Ropivacaine on the Onset and Duration of Ankle Block (ROADS)
December 15, 2023 updated by: Imré Van Herreweghe, Ziekenhuis Oost-Limburg
The Effects of Various Concentrations of Ropivacaine on the Onset and Duration of Ankle Block - a Randomized, Triple-blinded, Parallel-group Interventional Study
Peripheral nerve blocks are essential in ensuring effective regional anesthesia and postoperative analgesia in forefoot surgery for hallux valgus repair.
Many factors influence the onset and duration of peripheral nerve blocks.
In the advent of ultrasound-guided nerve blocks, the accuracy in administering LA has significantly improved, potentially reducing the required dosage, which is also associated with less risk for toxicity.
However, the effect of the concentration of LA on the onset time and duration of ultrasound-guided ankle blocks for forefoot surgery has not yet been studied.
This poses a clinically relevant dilemma regarding the necessity of administering lower or higher concentrations of ropivacaine to achieve a clinically relevant faster onset time and longer duration of an ankle block.
Study Overview
Status
Not yet recruiting
Conditions
Intervention / Treatment
Detailed Description
This study aims to evaluate the differential effects of 0.25%, 0.5%, and 1% ropivacaine on the onset time and duration of ultrasound-guided ankle blocks in patients having forefoot surgery for anesthesia and postoperative analgesia.
We hypothesize that the use of 1% ropivacaine for ultrasound guided ankle blocks will result in a significantly faster onset time and a longer sensory block duration, and thus analgesia, compared to the use of 0.25% and 0.5% ropivacaine in patients having forefoot surgery.
The primary outcome is the difference in the duration of the sensory blocks.
The secondary outcomes are the difference in onset time of the sensory block, the postoperative pain scores, and the opioid consumption.
Study Type
Interventional
Enrollment (Estimated)
126
Phase
- Not Applicable
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Contact
- Name: Imré Van Herreweghe, MD
- Phone Number: +32474661273
- Email: imrevanherreweghe@gmail.com
Participation Criteria
Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.
Eligibility Criteria
Ages Eligible for Study
- Adult
- Older Adult
Accepts Healthy Volunteers
No
Description
Inclusion Criteria:
- Provide signed and dated informed consent
- Age 18 to 65 years, scheduled for elective forefoot surgery for hallux valgus repair under unilateral ankle block at ZOL Genk
- ASA physical I-II-III
- Able to understand the researchers
- Able to ambulate (ability to walk independently, with or without assistive devices)
- Able to learn and perform study sensory and motor assessment by exhibiting sensitivity to pinprick, cold, and light touch (tested beforehand with pinprick/cold/ light touch sensation test) as the patient will have to perform these sensory and motor assessments by him/herself at home at postoperative day 0 to 2
Exclusion Criteria:
- Language barrier
- Preexisting lower extremity neuropathy
- Contraindications to ankle block (local infection, edema, burn, soft tissue trauma, or distorted anatomy with scarring in the area of block placement)
- Contraindications for use of NSAIDs
- Allergy to local anesthetics
- Uncontrolled anxiety, psychiatric or neurological disorder that might interfere with study assessment
- Weight below 50 kg based on a maximum dose of 3 mg/kg ropivacaine and a maximum dose of 150 mg ropivacaine.
- Preoperative use of opioids or gabapentin less than 3 days before surgery
Study Plan
This section provides details of the study plan, including how the study is designed and what the study is measuring.
How is the study designed?
Design Details
- Primary Purpose: Prevention
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Triple
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: 0.25% ropivacaine group
This group will receive a total of 15 mL of 0.25% ropivacaine.
|
A total of 15 ml of 0.25% ropivacaine will be administered and distributed strategically among the specific nerves: 6 ml for the tibial nerve, 3 ml for the deep peroneal nerve, and 2 ml each for the superficial peroneal nerve, saphenous nerve, and sural nerve.
|
Active Comparator: 0.5% ropivacaine group
This group will receive a total of 15 mL of 0.5% ropivacaine.
|
A total of 15 ml of 0.5% ropivacaine will be administered and distributed strategically among the specific nerves: 6 ml for the tibial nerve, 3 ml for the deep peroneal nerve, and 2 ml each for the superficial peroneal nerve, saphenous nerve, and sural nerve.
|
Experimental: 1% ropivacaine group
This group will receive a total of 15 mL of 1% ropivacaine.
|
A total of 15 ml of 1% ropivacaine will be administered and distributed strategically among the specific nerves: 6 ml for the tibial nerve, 3 ml for the deep peroneal nerve, and 2 ml each for the superficial peroneal nerve, saphenous nerve, and sural nerve.
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Duration
Time Frame: 48 hours
|
The difference in sensory block duration across the different groups.
|
48 hours
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Onset
Time Frame: 30 minutes
|
The difference in sensory block onset across the different groups.
|
30 minutes
|
Pain scores
Time Frame: 72 hours
|
The difference in postoperative pain scores across the different groups.
|
72 hours
|
Opioid consumption
Time Frame: One week
|
The difference in opioid consumption across the different groups.
|
One week
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Sponsor
Study record dates
These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.
Study Major Dates
Study Start (Estimated)
March 1, 2024
Primary Completion (Estimated)
March 1, 2026
Study Completion (Estimated)
August 1, 2026
Study Registration Dates
First Submitted
December 15, 2023
First Submitted That Met QC Criteria
December 15, 2023
First Posted (Actual)
December 29, 2023
Study Record Updates
Last Update Posted (Actual)
December 29, 2023
Last Update Submitted That Met QC Criteria
December 15, 2023
Last Verified
December 1, 2023
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- ROADS
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
No
Studies a U.S. FDA-regulated device product
No
product manufactured in and exported from the U.S.
No
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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