Intraoperative Direct vs Postoperative Ultrasound Guided Adductor Canal

Status Completed

Clinical Trial Summary

This study compares analgesic effect between two techniques of adductor canal nerve block after total knee arthroplasty. The first group of the patients will receive intraoperative adductor canal nerve block; and the other group post operative ultrasound guided adductor canal nerve block. Investigators will measure postoperative opioid consumption, pain management and rehabilitation goals.

Clinical Trial Description

Total knee arthroplasty (TKA) is a successful alternative to treat late stage knee osteoarthritis (OA). Pain management has been one of the main focuses of postoperative care. Most surgeons prefer a comprehensive multimodal approach including preoperative pharmacological treatment, intraoperative infiltration with complex drug mixes and postoperative peripheral nerve block. The most common postoperative nerve block alternative is the proximal femoral nerve block (FNB) which has shown improvements on postoperative pain measured by reduced opioid consumption and decreased pain at rest. Its main detractors argue that the motor nerve block effect is deleterious to early ambulation and have promoted adductor canal nerve blocks (ACB). Described by Lund et al in 2011, ACB block main femoral pain sensory contributors to the knee (articular branches of obturator nerve, vastus medialis branch and saphenous nerve) but is more distal to most motor branches to the quadriceps allowing near to normal quadriceps strength. Standard ACB block is performed under ultrasound guidance after surgery completion, still in the operating room (OR). Recent literature has shown the anatomic feasibility of intraoperative ACB via blunt suprapatellar dissection in standard medial parapatellar TKA approaches. The study seeks to determine the effectiveness of standard ultrasound guidance ACB compared with intraoperative ACB. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT03733509
Study type	Interventional
Source	Pontificia Universidad Catolica de Chile
Contact
Status	Completed
Phase	N/A
Start date	November 12, 2018
Completion date	October 24, 2022

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

Intraoperative Direct vs Postoperative Ultrasound Guided Adductor Canal Nerve Block After Total Knee Arthroplasty

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms