Adductor Canal Block for Medial Compartment Knee Arthroplasty



Status:Completed
Conditions:Hospital
Therapuetic Areas:Other
Healthy:No
Age Range:18 - 85
Updated:9/15/2018
Start Date:April 2013
End Date:May 2015

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Evaluation of Ultrasound-Guided Adductor Canal Blockade for Postoperative Analgesia Following Robotic Medial Unicompartmental Knee Replacement

This study will evaluate the affects of a single injection ultrasound-guided adductor canal
block for patients undergoing robotic-assisted (MAKOplasty) medial UKA (unicompartmental knee
arthroplasty). Specifically, this study will compare the adequacy of postoperative analgesia
provided by the adductor canal block with that provided by single injection lumbar plexus
blockade. The working hypothesis is that the analgesia provided by the adductor canal block
will be equivalent to the analgesia provided by the lumbar plexus block. The primary outcome
will be a comparison of verbal numerical pain scores at rest and with movement over the first
24 hours following nerve blockade.


Inclusion Criteria:

- Patients aged 18-85

- Undergoing unilateral robotic-assisted (MAKOplasty) medial compartment knee
arthroplasty at Wake Forest University Baptist Medical Center.

- Must give written informed consent for anesthesia including subarachnoid blockade and
peripheral nerve blockade of both the lumbar plexus and adductor canal.

- Must consent to the performance of a sham block at the site to which they are not
randomized.

- Must also be reliable to give accurate verbal pain scores postoperatively.

Exclusion Criteria:

- Contraindication to adductor canal blockade or lumbar plexus blockade (including
significant coagulation abnormalities)

- History of opioid addiction or current chronic pain therapy for pain other than at the
surgical site that is being treated with high-dose opioids (extended release opioids
or > 40mg oxycodone equivalents per day)

- Allergy to study medications

- Failure to adequately place either the adductor canal or lumbar plexus blocks.

- Patients who decline or have a contraindication to subarachnoid blockade will also be
excluded from the study.

- Pregnancy.
We found this trial at
1
site
1 Medical Center Blvd
Winston-Salem, North Carolina 27103
(336) 716-2011
Wake Forest University Baptist Medical Center Welcome to Wake Forest Baptist Medical Center, a fully...
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