Pain Control in Hip Arthroscopy: Comparing Lumbar Plexus Versus Peri-capsular Injection

Study Overview
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Brief Summary
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Comparison of lumbar plexus nerve block versus pericapsular injection for pain control during hip arthroscopy

Detailed Description
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The purpose of this study is to compare two different methods of pain control during and after hip arthroscopy surgery. It is not clear which of many different pain control methods are ideal to reduce pain for patients; consequently, the investigators are performing this study to compare the two main choices for pain control commonly used in order to identify if either is superior to the other.

Official Title
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Prospective, Single Blind Randomzied Controlled Trial Comparing Lumbar Plexus Peripheral Nerve Block Versus Peri-capsular Injection for Hip Arthroscopy

Conditions
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Nerve Block, Hip Arthroscopy

Intervention / Treatment
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* Procedure: Lumbar Plexus BLock
* Procedure: Pericapsular injection


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Patient scheduled to undergo hip arthroscopy with Dr. Wolff Patient age between 25 and 60 years of age. Exclusion Criteria: Patient has known allergy to ropivicaine or morphine. Patient unable to speak/read English (No translators available in clinic site). Pregnant female. Patient has a pre-operative narcotic use for hip pain Patient has pre-existing chronic pain disorder (i.e. fibromyalgia)

Ages Eligible for Study
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Minimum Age: 25 Years
Maximum Age: 60 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Prevention
Allocation: Randomized
Intervention Model: Parallel Assignment
Interventional Model Description: Prospective randomized
Masking: Single


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Active Comparator: Lumbar Plexus Block<br>A lumbar plexus 'nerve block' is a procedure in which local anesthetic (numbing medicine) is injected around a specific group of nerves to provide pain relief directly to the nerves supplying the area of the body undergoing surgery. | Procedure: Lumbar Plexus BLock<br>* Peripheral nerve block<br>|
| Active Comparator: Pericapsular Injection<br>The pericapsular injection is a procedure in which local anesthetic (numbing medicine) is injected around the hip joint to provide direct pain relief to the area undergoing surgery. | Procedure: Pericapsular injection<br>* Injection around the area undergoing surgery<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Pain score | Compare post-operative pain scores in the immediate post-operative period as defined by visual-analog pain scale at the time point of one hour spent in the post-anesthesia care unit (PACU). | At the one hour point in the PACU | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Morphine equivalents | Compare the total morphine equivalents of opioids provided in the PACU within the first two hours of time spent in the PACU | At the two hour point in the PACU | 
| Time spent in PACU | Compare the overall time spent in the PACU as defined by time to arrival to time to discharge vitals. | Immediately after surgery |