Comparing Ropivacaine Adductor Canal Blockade by Surgeon Versus Anesthesiologist

Study Overview
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Brief Summary
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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).

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

Conditions
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Pain, Postoperative, Satisfaction

Intervention / Treatment
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* Drug: Ropivacaine


Participation Criteria
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Eligibility Criteria
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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

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 80 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Placebo Comparator: Control<br>Anesthesiologist preforms ultrasound guided adductor canal block post-operatively | Drug: Ropivacaine<br>* For primary TKA, Ropivacaine is used in both arms, either performed intra-operatively by surgeon or post-operatively (ultrasound guided) by anesthesiologist.<br>|
| Experimental: Intervention<br>Surgeon preforms inter-operative adductor canal block | Drug: Ropivacaine<br>* For primary TKA, Ropivacaine is used in both arms, either performed intra-operatively by surgeon or post-operatively (ultrasound guided) by anesthesiologist.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Change in visual analog scale pain score | The primary end point is the patients' reported visual analogue pain score (VAS). 0-100mm scale | Up to 6 weeks post-surgery | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Change in range of motion | Range of motion | up to 6 weeks post-surgery | 
| Change in timed up and go | Timed up and go | up to 6 weeks post-surgery | 
| Change in daily opioid consumption | daily opioid consumption | up to 6 weeks post-surgery |