Location of Injection of Local Anesthetics in the Adductor Canal Block

• Status: Completed
• Trial end date: 2018-01-02
• Target enrollment: 0
• Participant gender: All

Summary

The adductor canal block (ACB) is the standard of care for analgesia after Anterior Cruciate Ligament (ACL) repair. ACB is performed by injecting local anesthetic (freezing) in the subsartorial canal in the thigh which is about 7-10cm long. Preliminary evidence suggests that different injection sites within the canal may produce different degrees of analgesia and quadriceps motor block. This trial seeks to determine the effects of various ACB injection sites on postoperative analgesia and motor power following ACL repair.

• Phase: N/A
• Accepts Healthy Volunteers?: No

Details

• Lead Sponsor: Women's College Hospital
• Treatments: Anesthetics; Anesthetics, Local; Lidocaine; Ropivacaine

Criteria

Inclusion Criteria:

• Patients booked for anterior cruciate ligament surgery under general anesthesia

• English speaking

• BMI <38 kg/m2

Exclusion Criteria:

• Refusal or inability to provide informed consent

• Allergy to local anesthetics

• Contraindication to regional anesthesia including coagulopathy or bleeding - diathesis

• Infection

• Nerve Injury at the site of the nerve block

• Malignancy at the site of the nerve block

• History of drug and/or alcohol dependence

• History of long term opioid intake or chronic pain disorder

• History of pre-existing neuropathy in the operative leg

• History of significant psychiatric conditions that may affect patient assessment

• Inability to understand the informed consent and demands of the study

• Allergy to any of the components of multi-modal analgesic regimen

• Revision ACL repair