High Versus Low Adductor Canal Block

• Status: Recruiting
• Trial end date: 2021-12-31
• Target enrollment: 0
• Participant gender: All

Summary

The investigators will be comparing the efficacy of two different techniques for performing an adductor canal block to the saphenous nerve as a part of the multimodal pain control regimen for total knee arthroplasty. The investigators will be comparing a "low adductor canal block" in which the surgeon administers local anesthetic to the distal aspect of the nerve from the operative site to a "high adductor canal block" in which the anesthesiologist administers the local anesthetic more proximally along the thigh using ultrasound guidance. The investigators will power the study for non-inferiority to compare the newer "low" block to the more commonly performed and more widely studied "high" block.

• Phase: Phase 4
• Accepts Healthy Volunteers?: No

Details

• Lead Sponsor: Carilion Clinic
• Treatments: Ropivacaine

Criteria

Inclusion Criteria:

• All patients undergoing unilateral primary TKA for primary osteoarthritis

• Age over 18

Exclusion Criteria:

• Pre-operative narcotic use

• Bilateral procedure

• Non-Primary arthroplasty

• Workman's comp

• Inability to have spinal anesthesia (blood thinners)

• Unsuccessful spinal anesthesia

• Inflammatory or Post Traumatic arthritis

• ASA score of 4

• Pregnancy