Assessment of Adductor Canal Blockade in Anterior Cruciate Ligament Surgery

Study Overview
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Brief Summary
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Assessment of sensory and motor blockade of adductor canal blockade performed for anterior cruciate ligament repair in comparison with femoral nerve blockade.

Detailed Description
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The adductor canal blockade is a reliable technique for analgesia after knee surgery. It is a safe technique, avoiding muscle weakness, and by this way limiting the risk of fall. Injection of local anaesthetics in the adductor canal does not block the sole saphenous nerve. Demonstration of a proximal spreading, around the branches of the femoral nerve have been made. The aim of this study is to assess a possible spreading from the adductor to the the popliteal fossa, where sciatic nerve and its branches are located. Pinprick test all around the knee and the leg, combined with motor assessment of the muscle of the leg and the ankle will be realised. This assessment was compared with femoral nerve blockade, classically used for analgesia after this kind of surgery (anterior cruciate ligament repair)

Official Title
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Assessment of Sensory and Motor Blockade of the Adductor Canal Blockade Performed for Surgery of Arthroscopic Anterior Cruciate Ligament Repair

Conditions
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Surgery of Arthroscopic Anterior Cruciate Ligament Repair

Intervention / Treatment
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* Drug: Analgesic nerve blockade (Ropivacaine)
* Procedure: Arthroscopic surgical repair of the anterior cruciate ligament


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Patients scheduled for anterior cruciate ligament repair Exclusion Criteria: Refusal to study, coagulation disorder, infection at the puncture site, preexisting neuropathy, allergy to local anesthetics, renal or hepatocellular insufficiency, context of chronic pain, drugs abuse, pregnant patient

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 70 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Active Comparator: Adductor Canal Blockade<br>In this group, patient will benefit of an ultrasound guided adductor canal blockade (20 ml of Ropivacaine 0.75%) as analgesic nerve blockade for their surgery of anterior cruciate ligament repair | Drug: Analgesic nerve blockade (Ropivacaine)<br>* Analgesic nerve blockade for Arthroscopic surgical repair of the anterior cruciate ligament<br>Procedure: Arthroscopic surgical repair of the anterior cruciate ligament<br> <br> |
| Active Comparator: Femoral Nerve Blockade<br>In this group, patient will benefit of an ultrasound guided femoral nerve blockade (20 ml of Ropivacaine 0.75%) as analgesic nerve blockade for their surgery of anterior cruciate ligament repair | Drug: Analgesic nerve blockade (Ropivacaine)<br>* Analgesic nerve blockade for Arthroscopic surgical repair of the anterior cruciate ligament<br>Procedure: Arthroscopic surgical repair of the anterior cruciate ligament<br> <br> |

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Cold sensitivity assessment (cold, very cold, no sensation) | sensitivity description (cold, very cold, no sensation) | From 30 to 60 minutes after nerve blockade | 
| Motor blockade assessment (dynamometer) | motor blockade evaluation with dynamometer | From 30 to 60 minutes after nerve blockade | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Postoperative pain assessment (visual analgesic scale) | Evaluation with visual analgesic scale | At 2, 4, 6 postoperative hours | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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nerve block, knee surgery, anterior cruciate ligament surgery