Total Hip Arthroplasty (THA) Lumbar Plexus Verses Periarticular

Mayo Clinic165 enrolled

Overview

Total hip arthroplasty is a one of the most commonly performed surgical procedures with increasing numbers anticipated over the next several decades. The purpose of this study was to find a better way to make patients comfortable after their hip surgery. Three different ways of providing pain relief were compared, a peripheral nerve block in the lower back outside of the spinal space (using bupivacaine, a numbing medicine), or injections around the hip joint with one of two different medicines, either Ropivacaine or Liposomal Bupivacaine (Exparel®).

Total hip arthroplasty is associated with moderate to severe postoperative pain and an ideal clinical pathway for pain management has yet to be established. Multimodal pain management incorporating the use of regional anesthesia for THA has led to decreased hospital length of stay, improved patient comfort, and enhanced patient satisfaction that is efficacious and cost-effective. This investigation compared multimodal total joint arthroplasty pathways with continuous lumbar plexus blockade versus two different periarticular injection mixtures to potentially determine an ideal perioperative analgesia pathway for THA. Patients undergoing elective, unilateral primary total hip arthroplasty within a clinical pathway utilizing preemptive low-dose opioid and non-opioid medications for multimodal analgesia were randomized to one of three different intervention groups after informed consent was obtained: posterior lumbar plexus block (PNB), periarticular infiltration (PAI) with ropivacaine, ketorolac, and epinephrine, and PAI with liposomal bupivacaine, ketorolac, and epinephrine. The investigators hypothesized differences in the analgesia outcomes between the three intervention groups would provide for an evidenced-based clinical pathway to emerge as a result of this study.

Study Type

INTERVENTIONAL

Allocation

RANDOMIZED

Purpose

TREATMENT

Masking

SINGLE

Enrollment

165

Conditions

Total Hip Arthroplasty

Interventions

PNB BupivacaineDRUG

Infusion

PAI RopivacaineDRUG

Injection

PAI liposomal bupivacaineDRUG

Injection

Epinephrine

Eligibility

Sex: ALLMin age: 18 YearsHealthy volunteers:

Medical Language ↔ Plain English

Inclusion Criteria: 1. Adult patients with an American Society of Anesthesiologists (ASA) physiological status I-III 2. Patients presenting for unilateral primary total hip arthroplasty 3. Patients 18 years of age and older Exclusion Criteria: 1. Chronic pain syndromes such as fibromyalgia or complex regional pain syndrome 2. History of long term use of daily opioids (\>1 months) with Oral Morphine Equivalent (OME) \>5mg/day 3. Body mass index (BMI) \> 40 kg/m2 4. Allergies to medications used in this study such as: fentanyl,hydromorphone, ketorolac, ibuprofen, acetaminophen, local anesthetics, oxycodone, tramadol, ondansetron, droperidol, dexamethasone, celecoxib and OxyContin 5. Major systemic medical problems such as: 1. severe renal disorder defined as glomerular filtration rate (GFR) \<50 units/m2 2. cardiovascular disorders defined as Congestive Heart Failure (CHF) New York Heart Association (NYHA) class III-IV 3. severe hepatic disorder defined as current or past diagnosis of acute/subacute necrosis of liver, acute hepatic failure, chronic liver disease, cirrhosis (primary biliary cirrhosis), fatty liver, chronic hepatitis/toxic hepatitis, liver abscess, hepatic coma, hepatorenal syndrome, other disorders of liver 6. Impaired cognitive function or inability to understand the study protocol 7. Contraindication to a regional anesthesia technique (e.g., preexisting neuropathy in the operative extremity, coagulopathy \[platelets \< 100,000, International Normalized Ratio (INR) \>1.5\], refusal, etc.). 8. Previous contralateral hip replacement managed with regional or periarticular injection 9. Unable to follow-up at the 3 month interval at Mayo Clinic in Rochester, Minnesota 10. Pregnancy or breastfeeding (women of child-bearing potential will require a negative pregnancy test)

Locations (1)

Mayo Clinic in Rochester

Rochester, Minnesota, United States

Outcomes

Primary Outcomes

Maximum Postoperative Pain Score

Pain was measured on an ascending numeric rating scale (NRS) from 0-10 where 1-3 equaled mild pain, 4-6 equaled moderate pain, 7-9 equaled severe pain, and 10 equaled worst possible pain.

Time frame: Post-Operative Day 1 (0600-1200)

Secondary Outcomes

Total Opioid Consumption During Hospitalization

Measured in daily oral morphine equivalents (OME)

Time frame: Preoperative, Intraoperative, Postanesthesia Care Unit (PACU), Post Operative Day (POD) 0, day 1, and day 2

Data from ClinicalTrials.gov

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