Adductor Canal Block for Total Knee Arthroplasty
Arthroplasty, Replacement, Knee, Pain, Postoperative
About this trial
This is an interventional other trial for Arthroplasty, Replacement, Knee focused on measuring Anesthesia, Analgesia
Eligibility Criteria
Inclusion Criteria:
- The subject is scheduled for elective unilateral TKA
- The subject is ≥ 18 years and ≤ 80 years;
- The subject's weight is between 70-120 kg; and
- The subject's primary anesthesia care team has planned for a neuraxial anesthetic (i.e. spinal, epidural or combined-spinal epidural).
- The patient agrees to receive an adductor canal block.
- American Society of Anesthesiologists class 1-3
Exclusion Criteria:
- Subject is < 18 years of age or >80 years of age;
- Subject is non-English speaking;
- Subject is known or believed to be pregnant;
- Subject is a prisoner;
- Subject has impaired decision-making capacity; per discretion of the Investigator
- Symptomatic untreated gastroesophageal reflux or otherwise at risk for perioperative aspiration;
- Any condition for which the primary anesthesia care team deems neuraxial anesthesia inappropriate;
- Significant pre-existing neuropathy on the operative limb;
- Significant renal, cardiac or hepatic disease per discretion of the investigator.
- American Society of Anesthesiologists class 4-5
- Known hypersensitivity and/or allergies to local anesthetics
- Chronic Opioid Use (daily or almost daily use of opioids for > 3 months)
Sites / Locations
- University of Wisconsin School of Medicine and Public Health
Arms of the Study
Arm 1
Arm 2
Arm 3
Experimental
Experimental
Experimental
5 ml
10 ml
20 ml
Following negative aspiration, SSACNB volume will be randomized and subjects will receive 5, 10 or 20 ml of 0.5% bupivacaine will be incrementally injected. Randomization of the volume of bupivacaine will be determined by opening a sequential, pre-sealed envelope with the group assignment designated within. All studied volumes are well within the acceptable range for SSACNB.
Following negative aspiration, SSACNB volume will be randomized and subjects will receive 5, 10 or 20 ml of 0.5% bupivacaine will be incrementally injected. Randomization of the volume of bupivacaine will be determined by opening a sequential, pre-sealed envelope with the group assignment designated within. All studied volumes are well within the acceptable range for SSACNB.
Following negative aspiration, SSACNB volume will be randomized and subjects will receive 5, 10 or 20 ml of 0.5% bupivacaine will be incrementally injected. Randomization of the volume of bupivacaine will be determined by opening a sequential, pre-sealed envelope with the group assignment designated within. All studied volumes are well within the acceptable range for SSACNB.