Comparing Ropivacaine Adductor Canal Blockade by Surgeon Versus Anesthesiologist

A Randomized Controlled Trial Comparing Intraoperative Surgeon-Performed Versus Anesthesiologist-Performed Adductor Canal Blockade After Primary Total Knee Arthroplasty

The purpose of this study is to evaluate the efficacy of two methods of administering an adductor canal block (ACB) following total knee arthroplasty (TKA); intraoperative surgeon performed intra-articular adductor canal block (IACB) and anesthesiologist ultrasound guided ADC in the post-anesthesia recovery unit (PACU).

Inclusion Criteria:

• Patients undergoing unilateral primary TKA with underlying diagnosis of osteoarthritis
• ASA I - III
• Spinal anesthesia
• All patients will have cemented total knee utilizing a medial parapatellar approach with posterior stabilized or cruciate retaining implants. A tourniquet will be used in all cases.
• Patients must be between 18 and 80 years of age.
• Active and valid email address for the participant.

Exclusion Criteria:

• Allergy to anesthetics or study analgesic medications.
• Contraindication to regional anesthesia
• Non-english speaking
• ASA IV or greater
• Renal insufficiency with Cr > 2.0 or hepatic failure
• General or epidural anesthesia
• Sensory/motor disorder involving the operative limb
• Patients who consume preoperative opioids for pain control.
• Pregnant women
• Mentally disabled patients and patients with psychiatric disorders that would prevent them from properly understanding and evaluating an informed consent process.
• Prisoners